Researcher Profile and Settings

Master

Affiliation (Master)

• Faculty of Engineering　Materials Science and Engineering　Energy Materials

Affiliation (Master)

• Faculty of Engineering　Materials Science and Engineering　Energy Materials

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Profile and Settings

Affiliation

• Hokkaido University, Faculty of Engineering, Associate Professor
• Tokyo Institute of Technology, School of Materials and Chemical Technology, Associate Professor

Degree

• Dr. (Eng.)（2004/03 Tokyo Institute of Technology）

Profile and Settings

• Name (Japanese)

  Ueda

• Name (Kana)

  Mitsutoshi

• Name

  AAY-4438-2020, 202401002487607752

Affiliation

• Hokkaido University, Faculty of Engineering, Associate Professor
• Tokyo Institute of Technology, School of Materials and Chemical Technology, Associate Professor

Achievement

Research Interests

• High Temperature Oxidation of Metallic Materials   Physical Chemistry at High Temperatures   

Research Areas

• Nanotechnology/Materials / Material fabrication and microstructure control
• Nanotechnology/Materials / Structural and functional materials

Research Experience

• 2024/04 - Today Hokkaido University Faculty of Engineering Associate Professor
• 2016 - Today Tokyo Institute of Technology School of Materials and Chemical Technology Associate Professor
• 2013/07 - 2016/03 Tokyo Institute of Technology Graduate School of Science and Engineering Associate Professor
• 2007/04 - 2013/06 Tokyo Institute of Technology Graduate School of Science and Engineering Assistant Professor
• 2004/04 - 2007/03 Tokyo Institute of Technology Graduate School of Science and Engineering Assistant Professor

Education

• 1999/04 - 2004/03  Tokyo Institute of Technology  Graduate School of Science and Engineering
• 1996/04 - 1999/03  Tokyo Institute of Technology  School of Engineering
• 1995/04 - 1996/03  Tokyo Institute of Technology

Awards

• 2023/03 （一社）日本鉄鋼協会 学術記念賞（西山記念賞）
   鉄鋼材料の高温酸化に関する研究 

  受賞者: 上田光敏
• 2014/05 （公社）腐食防食学会 進歩賞
   構成イオンの流れの発散による酸化皮膜中のボイド生成の定量的予測に関する研究 

  受賞者: 上田光敏
• 2010/03 （社）電気化学会 固体化学の新しい指針を探る研究会 田川記念固体化学奨励賞
   金属酸化物中の動力学的組織変化の定量的予測と金属の高温酸化への応用 

  受賞者: 上田光敏
• 2008/09 東京工業大学 東工大工系若手奨励賞
   

  受賞者: 上田光敏
• 2005/02 手島工業教育資金団 手島記念研究賞 博士論文賞
   

  受賞者: 上田光敏

Published Papers

• The Effect of Tungsten Addition on Steam Oxidation Behavior of the Fe-20Cr-35Ni (at%) Alloy at 1073 K

  Kaito Ogawahara, Mitsutoshi Ueda

  MATERIALS TRANSACTIONS 65 (9) 1131 - 1140 1345-9678 2024/09/01 [Refereed][Not invited]
  
• Oxidation Behavior of a Novel Nickel-Based Alloy in Air and Steam at 1273 K for the Oxygen–Hydrogen Combustion Chamber

  Abdul Latif, Mitsutoshi Ueda, Masao Takeyama

  High Temperature Corrosion of Materials 2731-8397 2024/08/27 [Refereed][Not invited]
   

  Abstract As part of advancing oxygen–hydrogen combustion power generation technology, a study was carried out to evaluate the oxidation behavior of a novel developed Ni–Cr–W alloy as the structural material candidate. Tungsten is utilized in the alloy as a solid solution-strengthened element and as an α₂-W precipitate former. The examination involved exposing the developed alloy and commercial alloys, Hastelloy X and Nimonic 263, to air and steam environments at 1273 K. The results show a different oxidation behavior of the developed alloy. Considering the air oxidation kinetics, the performance of the developed alloy was on par with that of Hastelloy X and superior to Nimonic 263. A single outer chromia scale was established with an intergranular oxide. Whereas steam exposure resulted in the formation of outer and inner chromia scales with a deeper intergranular oxide penetration. Thicker chromia formation with a lower mass gain indicates the evaporation of chromia under a steam atmosphere.
• Effect of Alloying Elements on Steam Oxidation Behavior of Heat Resistant Steels

  Mitsutoshi Ueda

  Materia Japan 63 (3) 154 - 158 1340-2625 2024/03/01 [Refereed][Not invited]
  
• Potential Utilization of Iron Oxidation Reaction Heat for the Generation of SiO2–FeO System Melts

  Rie Endo, Kimia Mitsui, Shota Hashiyama, Leo Miyazaki, Takashi Watanabe, Mitsutoshi Ueda, Miyuki Hayashi, Hiroshi Tanei, Masahiro Susa

  International Journal of Thermophysics 45 (3) 1 - 19 0195-928X 2024/02/21 [Refereed][Not invited]
   

  Abstract Silicon-containing steel forms an oxide layer within the scale during hot rolling. This layer comprising oxides such as Fe₂SiO₄ and FeO adversely affect the surface quality of steel owing to strong adhesion between Fe₂SiO₄ and the steel substrate. A method to melt this silicon-containing oxide layer through the oxidation reaction of iron plates by applying SiO₂ powder to the surface is proposed. The aim of this study is to understand the reaction mechanism and identify the optimal conditions for this process. Application of SiO₂ coating to the surface of an iron plate at 6.67 × 10^–4 g·mm⁻² and maintaining the plate at 1423 K, just below the eutectic temperature of Fe₂SiO₄–FeO system (1450 K), cause the surface oxide scale to melt when exposed to oxidation in an atmospheric environment. Notably, reducing the electric furnace temperature hinders the melting process, whereas excessive application of SiO₂ hampers the formation of sufficient liquid phase. On the surface of the iron plate, primarily FeO and Fe₂SiO₄ are formed. Heat generation is mainly due to the formation of FeO, which leads to the rapid generation of Fe₂SiO₄. Eutectic reactions within SiO₂–Fe₂SiO₄ or FeO–Fe₂SiO₄ systems drive the formation of the liquid phase. Once the liquid phase was established, rapid diffusion of iron ions within it resulted in rapid iron oxidation and additional heat generation. Ultimately, a liquid phase in equilibrium with FeO is formed across the entire surface of the iron plate.
• The Effect of Rhodium Addition on Degradation Behavior of Ir-10 mass%Rh Alloy during Oxidation at Elevated Temperatures

  上田光敏, 寺井健太, 横田俊介, 竹谷俊亮, 安原颯人, 今井庸介

  日本金属学会誌 87 (10) 279 - 287 1880-6880 2023/10/01 [Refereed][Not invited]
  
• Effects of oxygen addition on the microstructure, phase transformations, and oxidation resistance of TiAl alloys

  Ali Shaaban, Hirotoyo Nakashima, Mitsutoshi Ueda, Masao Takeyama

  Journal of Alloys and Compounds 918 165716 - 165716 0925-8388 2022/10 [Refereed][Not invited]
  
• The Effect of Tungsten Addition on Steam Oxidation Behavior of the Fe-20Cr-35Ni (at%) Alloy at 1073 K

  小川原魁人, 上田光敏

  日本金属学会誌 86 (7) 121 - 130 0021-4876 2022/07/01 [Refereed][Not invited]
  
• The Effect of Tungsten Addition to Fe-9Cr Alloy on Steam Oxidation Behavior at 923 K

  Lidyana Utami, Mitsutoshi Ueda

  Oxidation of Metals 97 (3-4) 341 - 358 0030-770X 2022/01/21 [Refereed][Not invited]
  
• Thermal Diffusivity and Conductivity of Fe₃O₄ Scale Provided by Oxidation of Iron

  Mu Li, Megumi Akoshima, Rie Endo, Mitsutoshi Ueda, Hiroshi Tanei, Masahiro Susa

  ISIJ International 62 (1) 275 - 277 0915-1559 2022/01/15 [Refereed][Not invited]
  
• The Effect of Microstructure on Steam Oxidation Behavior of the Fe–20Cr–35Ni–2.5Nb (at.%) Steel at 1073 K

  Mitsutoshi Ueda, Jumpei Ohbayashi, Tatsumi Yao, Masao Takeyama

  Oxidation of Metals 96 (1-2) 81 - 91 0030-770X 2021/07/22 [Refereed][Not invited]
  
• The Effect of Niobium Addition on Steam Oxidation Behavior of Ferritic Heat Resistant Steels at 923 K

  Lidyana Utami, Mitsutoshi Ueda

  Advances in Materials Technology for Power Plants 327 - 335 2994-4023 2019/10/21 [Refereed][Not invited]
   

  Abstract High Cr ferritic steels have been developed for the large components of fossil power plants due to their excellent creep resistance, low thermal expansion, and good oxidation resistance. Development works to improve the operating temperature of these steels mainly focused on the high mechanical properties such as solid solution strengthening and precipitation hardening. However, the knowledge of the correlation between Laves phase precipitation and oxidation behavior has not clarified yet on 9Cr ferritic steels. This research will be focused on the effect of precipitation of Laves phase on steam oxidation behavior of Fe-9Cr alloy at 923 K. Niobium was chosen as the third element to the Fe- 9Cr binary system. Steam oxidation test of Fe-9Cr (mass%) alloy and Fe-9Cr-2Nb (mass%) alloy were carried out at 923 K in Ar-15%H2O mixture for up to 172.8 ks. X-ray diffraction confirms the oxide mainly consist of wüstite on the Fe-9Cr in the initial stage while on Nb added samples magnetite was dominated. The results show that the Fe-9Cr- 2Nb alloy has a slower oxidation rate than the Fe-9Cr alloy after oxidized for 172.8 ks
• High Temperature Thermal Diffusivity Measurement for FeO Scale by Electrical-Optical Hybrid Pulse-Heating Method

  Yuanru Yang, Hiromichi Watanabe, Mitsutoshi Ueda, Miyuki Hayashi, Masahiro Susa, Rie Endo

  ISIJ International 58 (12) 2186 - 2190 0915-1559 2018/12/15 [Refereed][Not invited]
  
• Evaluation of Heat Flux Extracted from Steel Surface with Oxide Scale Utilizing Evaporation Rate of Water Droplet

  大杉 祐人, 上田 光敏, 遠藤 理恵, 須佐 匡裕

  鉄と鋼 104 (2) 72 - 80 0021-1575 2018 [Refereed][Not invited]
  
• Effect of grain size on the oxidation of Fe–13Cr–5Ni alloy at 973K in Ar–21vol%O2

  Lu Liu, Zhi-gang Yang, Chi Zhang, Mitsutoshi Ueda, Kenichi Kawamura, Toshio Maruyama

  Corrosion Science 91 195 - 202 0010-938X 2015/02 [Refereed][Not invited]
  
• IN-SITU OBSERVATION OF THE FRACTURE BEHAVIOR OF THE OXIDE SCALE ON THE Fe-20Cr-35Ni-2.5Nb-0.03B-0.1Zr STEEL DURING TENSILE DEFORMATION

  T. Sumita, M. Ueda, M. Takeyama

  Proceedings of The 1st International Conference on Advanced High-Temperature Materials Technology for Sustainable and Reliable Power Engineering (123HiMAT-2015) 173 - 176 2015 [Refereed][Not invited]
  
• STEAM OXIDATION RESISTANCE OF THE MODIFIED FE-20CR-35NI-2.5NB (at.%) STEEL AT 1073 K

  M. Ueda, K. Chikama, M. Takeyama

  Proceedings of The 1st International Conference on Advanced High-Temperature Materials Technology for Sustainable and Reliable Power Engineering (123HiMAT-2015) 39 - 41 2015 [Refereed][Not invited]
  
• Investigation of carbon deposition behavior on ferritic alloys in low S/C ratio using direct heating method

  Takuya Ito, Kenjiro Fujita, Yoshio Matsuzaki, Mitsutoshi Ueda, Toshio Maruyama

  Advances in Solid Oxide Fuel Cells X: Ceramic Engineering and Science Proceedings 35 (3) 33 - 40 2014/12/19 [Not refereed][Not invited]
  
• Thermal Diffusivity Measurement of Oxide Scale Formed on Steel during Hot-rolling Process

  Rie Endo, Takashi Yagi, Mitsutoshi Ueda, Masahiro Susa

  ISIJ International 54 (9) 2084 - 2088 0915-1559 2014/09 [Refereed][Not invited]
  
• Effect of Grain Boundary Fe2Nb Laves Phase on Creep of Austenitic Heat Resistant Steel of Fe-20Cr-30Ni-2Nb in Steam Atmosphere

  Yu Misosaku, Imanuel Tarigan, Takahiro Kimura, Naoki Takata, Mitsutoshi Ueda, Toshio Maruyama, Masao Takeyama

  Tetsu-to-Hagane 100 (9) 1158 - 1164 0021-1575 2014 [Refereed][Not invited]
  
• Microstructure Development of Oxide Scale during Steam Oxidation of the Fe–20Cr–30Ni–2Nb (at%) Austenitic Steel at 1073 K

  Lyta, Mitsutoshi Ueda, Kenichi Kawamura, Masao Takeyama, Toshio Maruyama

  MATERIALS TRANSACTIONS 54 (12) 2276 - 2284 1345-9678 2013/12/01 [Refereed][Not invited]
  
• Steam Oxidation of the Novel Austenitic Steel of Fe-20Cr-30Ni-2Nb (at.%) at 973 K

  Mitsutoshi Ueda, Masakazu Yamashita, Kenichi Kawamura, Masao Takeyama, Toshio Maruyama

  Advances in Materials Technology for Power Plants 815 - 820 2994-4023 2013/10/22 [Not refereed]
   

  Abstract Steam oxidation of a novel austenitic steel, of which composition is Fe-20Cr-30Ni-2Nb (at.%), has been conducted at 973 K to evaluate steam oxidation resistance based on detail analyses of scale morphology and scale growth. Two types of scale morphologies were observed in the solution treated sample, depending on the grain of the steel. Although thin duplex scale with the Cr-rich layer was formed in the early stage, most of the surface was covered with thick duplex scale which consists of magnetite as the outer scale and the mixture of Fe-Cr spinel and metallic Ni as the inner scale. On the other hand, surface morphology of the oxide scale was independent of grain of the steel and thick duplex scale as seen on the solution treated sample was formed on the pre-aged sample. Steam oxidation resistance of the steel is almost the same as that of commercial austenitic steels and it can be improved by the surface treatment such as shot peening. Based on the results, this steel has both enough creep rupture strength and good steam oxidation resistance for A-USC power plants.
• Phase Stability of Iron Oxides on Palladium–Iron Alloy at Elevated Temperatures and Its Application to High Temperature Oxidation

  Tedi Kurniawan, Mitsutoshi Ueda, Kenichi Kawamura, Toshio Maruyama

  MATERIALS TRANSACTIONS 54 (9) 1829 - 1837 1345-9678 2013/09/01 [Refereed][Not invited]
  
• The Effect of Water Vapor on the Transition from Internal to External Oxidation of Austenitic Steels at 1,073 K

  Mitsutoshi Ueda, Yuki Inoue, Hikotaro Ochiai, Masao Takeyama, Toshio Maruyama

  Oxidation of Metals 79 (5-6) 485 - 494 0030-770X 2012/12/25 [Refereed][Not invited]
  
• Effect of water vapour on the oxidation of Fe–13Cr–5Ni martensitic alloy at 973K

  L. Liu, Z.-G. Yang, C. Zhang, M. Ueda, K. Kawamura, T. Maruyama

  Corrosion Science 60 90 - 97 0010-938X 2012/07 [Refereed][Not invited]
  
• Estimation of the Effect of Grain Boundary Diffusion on Microstructure Development in Magnetite Bi-crystal under Oxygen Chemical Potential Gradient at 823 K

  Mitsutoshi Ueda, Toshio Maruyama

  Journal of the Korean Ceramic Society 49 (1) 37 - 42 1229-7801 2012/01/31 [Refereed][Not invited]
  
• Effect of Electric Current on Growth of Oxide Scale on Fe–25Cr Alloy for SOFC Interconnect at 1073 K

  K. Kawamura, T. Nitobe, H. Kurokawa, M. Ueda, T. Maruyama

  Journal of The Electrochemical Society 159 (3) B259 - B264 0013-4651 2012/01/01 [Refereed][Not invited]
  
• Solubility of Fe in Al Rich Region of Al^|^ndash;Mg^|^ndash;Si System at 973 K

  Yuichi Kamo, Mitsutoshi Ueda, Kenichi Kawamura, Toshio Maruyama

  ISIJ International 52 (11) 2083 - 2092 0915-1559 2012 [Refereed][Not invited]
  
• Void Formation at the Interface of the Duplex Scale Formed on Fe-5Cr Alloy at 773 K

  Mitsutoshi Ueda, Kenichi Kawamura, Toshio Maruyama

  Materials Science Forum 696 34 - 38 2011/09 [Refereed][Not invited]
   

  Void formation in a duplex scale formed on Fe-5Cr alloy at 773 K has been elucidated by oxygen chemical potential distribution, the flux of oxide ion and its divergence. The calculation predicts that voids preferentially form at the interface between inner and outer scales in the low oxygen partial pressure in which the predominant defect of iron is interstitial ion. The flux of oxide ion changes discontinuously at this interface and the divergence of the flux gives voids. Calculated volume fraction of voids at this interface is in good agreement with that has been measured.
• 1473K，Ar–17.6%H2–12.2%H2O雰囲気におけるFe–1 mass%Si合金の高温酸化で生成する内部酸化物の定量化

  黄 維彬, 上田 光敏, 河村 憲一, 丸山 俊夫

  鉄と鋼 Iron and Steel Institute of Japan 97 (9) 473 - 479 0021-1575 2011/09 [Refereed][Not invited]
  
• Hydrogen Permeability through n-type Cr2O3 Scale at 1273 K under the Oxygen Activities of 1.6 × 10–18 – 1.0 × 10–16

  Minoru Tanaka, Mitsutoshi Ueda, Kenichi Kawamura, Toshio Maruyama

  ISIJ International 51 (4) 638 - 644 0915-1559 2011 [Refereed][Not invited]
  
• Direct Heating for Analysing Reforming Reaction on Alloy Surface in Low S/C Environment

  Mitsutoshi Ueda, Kenjiro Fujita, Yoshio Matsuzaki, Toshio Maruyama

  ECS Transactions 25 (25) 89 - 99 1938-5862 2010/02/22 [Refereed][Not invited]
   

  New apparatus for direct heating of alloy specimen in the gas stream has been developed in order to analyze not only reforming reaction but also carbon deposition on the alloy surface in low S/C environment. A foil of iron can be heated directly to 1073 K by the Joule heat from the specimen. Temperature of the foil can be kept at 1073 plus-minus 10 K by using AC power regulator connected with temperature controller. Temperature of the foil is not influenced by the thermal radiation from the oxide scale during the oxidation. One experiment has been carried out to check carbon deposition on the ferritic alloys at 1073 K in the CH4-H2O gas mixture. Oxidation and carbon deposition simultaneously occur on the alloy surface and no carbon deposition is observed in the chamber. Developed apparatus is suitable for investigation of carbon deposition and carburization of alloys in low S/C environment.
• Oxygen Permeability through Internal Oxidation Zone in Fe–Cr Alloys under Dry and Humid Conditions at 973 and 1 073 K

  Asep Ridwan Setiawan, Mohd Hanafi Bin Ani, Mitsutoshi Ueda, Kenichi Kawamura, Toshio Maruyama

  ISIJ International 50 (2) 259 - 263 0915-1559 2010/02 [Refereed][Not invited]
  
• Void Formation Induced by the Divergence of the Diffusive Ionic Fluxes in Metal Oxides Under Chemical Potential Gradients

  Toshio Maruyama, Mitsutoshi Ueda

  Journal of the Korean Ceramic Society 47 (1) 8 - 18 1229-7801 2010/01/31 [Refereed][Not invited]
  
• The Effect of Water Vapor on High Temperature Oxidation of Fe-Cr Alloys at 1073 K

  Mohd Hanafi Bin Ani, Toshiya Kodama, Mitsutoshi Ueda, Kenichi Kawamura, Toshio Maruyama

  MATERIALS TRANSACTIONS 50 (11) 2656 - 2663 1345-9678 2009/11 [Refereed][Not invited]
  
• Void Formation in the Growing Scale Induced by the Divergence of the Diffusive Ionic Flux in High Temperature Oxidation of Metals

  Toshio Maruyama, Mitsutoshi Ueda, Kenichi Kawamura

  Defect and Diffusion Forum 289-292 1 - 13 2009/04/16 [Refereed][Not invited]
   

  Voids are frequently generated and dispersed in oxide scales formed in high temperature oxidation of metals. The divergence of ionic flux may play an important role in the void formation in a growing scale. Kinetic equations were derived for describing chemical potential distribution, ionic fluxes and their divergence in the scale. The divergence was found to be the measure of void formation. Defect chemistry in scales is directly related to the sign of divergence and gives an indication of the void formation behavior. The quantitative estimation on the void formation was successfully applied to a growing magnetite scale in high temperature oxidation of iron at 823 K.
• Void Formation in Growing Oxide Scales with Schottky Defects and P-Type Conduction

  Toshio Maruyama, Kojiro Akiba, Mitsutoshi Ueda, Kenichi Kawamura

  Materials Science Forum 595-598 1039 - 1046 2008/09/09 [Refereed][Not invited]
   

  A quantitative elucidation of the void formation in a growing scale with Schottky defectsand p-type conduction during high temperature oxidation of metals. The evaluation of thedivergence of ionic fluxes indicates that(1) Voids form in the scale preferentially in the vicinity of the metal/scale interface,(2) The volume of voids increases in a parabolic manner,(3) The volume fraction of voids and the scale is independent of time.The comparison between the calculation and the experimentally observed scale microstructure ofNiO and CoO confirmed well the validity of the prediction.
• Continuous Monitoring of Oxygen Chemical Potential at the Surface of Growing Oxide Scales during High Temperature Oxidation of Metals

  Kojiro Akiba, Mitsutoshi Ueda, Kenichi Kawamura, Toshio Maruyama

  MATERIALS TRANSACTIONS 49 (3) 629 - 636 1345-9678 2008/03 [Refereed][Not invited]
  
• Quantitative Prediction of Voids Formation in a Growing Cobaltous Oxide Scale at 1373 K

  Kojiro Akiba, Mitsutoshi Ueda, Kenichi Kawamura, Toshio Maruyama

  MATERIALS TRANSACTIONS 48 (11) 2997 - 3006 1345-9678 2007/11 [Refereed][Not invited]
  
• Quantitative Prediction of Voids Formation in a Growing Nickel Oxide Scale at 1373 K

  Kojiro Akiba, Mitsutoshi Ueda, Kenichi Kawamura, Toshio Maruyama

  MATERIALS TRANSACTIONS 48 (10) 2753 - 2761 1345-9678 2007/10 [Refereed][Not invited]
  
• Carburization Resistance of Nb Added-16Cr Alloy at 1073 K

  Takuya Ito, Mitsutoshi Ueda, Kenichi Kawamura, Toshio Maruyama

  ECS Transactions 7 (1) 2371 - 2377 1938-5862 2007/05/25 [Refereed][Not invited]
   

  Fe-Cr ferritic alloy is one of the candidates of interconnects. This alloy has a good oxidation resistance by formation of a protective Cr2O3 scale, which also protects from carburization. Using hydrocarbon gas as fuel, Cr concentration near the alloy surface may decrease by the formation of Cr carbides. The formation of the protective Cr2O3 scale is failed. It is expected that Nb addition to Fe- Cr alloy prevents from carburization because Nb has stronger affinity to carbon than Cr. Fe-16 mass%Cr and Fe-16 mass%Cr- 1.0 mass%Nb alloys were exposed to the atmosphere with S/C=1.1 at 1073 K up to 604.8 ks. In the case of Fe-16Cr alloy, carburization occurred extensively and internal Cr oxides and carbides were formed inside of the alloy. No Cr carbides were observed in all parts of the Nb added alloy. This indicates that carburization resistance is improved by the addition of Nb.
• Quantitative prediction of void formation in growing magnetite scale formed on iron at 823 K

  M. Ueda, T. Maruyama

  Conference proceeding of Materials Science & Technology 2007 Conference and Exhibition (MS&T'07), International Symposium on Defects, Transport and Related Phenomena, Transport III 277 - 287 2007 [Not refereed][Not invited]
  
• Void Formation in Magnetite Scale Formed on Iron at 823 K -Elucidation by Chemical Potential Distribution-

  Mitsutoshi Ueda, Kenichi Kawamura, Toshio Maruyama

  Materials Science Forum 522-523 37 - 44 2006/08 [Refereed][Not invited]
   

  Estimation of void formation in oxide scale is important for predicting exfoliation of theoxide scale. Void formation in magnetite scale formed on iron at 823 K has been elucidated bychemical potential distribution, flux of oxide ion and its divergence. This calculation also estimates aeffective diffusion coefficient, which includes both lattice diffusion and grain boundary diffusion inmagnetite scale. The resulting effective diffusion coefficients give the quantitative elucidation of themorphology of the magnetite scale. The divergence of oxide ion explains well a position and anamount of void in magnetite scale.
• Oxygen potential distribution during disappearance of the internal oxidation zone formed in the steam oxidation of Fe–9Cr–0.26Si ferritic steel at 973 K

  Mitsutoshi Ueda, Yukiko Oyama, Kenichi Kawamura, Toshio Maruyama

  Materials at High Temperatures 22 (1-2) 79 - 85 0960-3409 2005/01 [Refereed][Not invited]
  
• High Temperature Steam Oxidation of High Cr Ferritic Steels

  上田光敏, 丸山俊夫

  材料と環境 54 (5) 0917-0480 2005 [Refereed][Not invited]
  
• Chemical Potential Distribution and Void Formation in Magnetite Scale Formed in Oxidation of Iron at 823K

  Toshio Maruyama, Naoya Fukagai, Mitsutoshi Ueda, Kenichi Kawamura

  Materials Science Forum 461-464 807 - 814 2004/08/15 [Refereed][Not invited]
  
• Hydrogen permeation measurement of iron and its oxide membranes by using a dew point hygrometer

  M. Ueda, H. Kurokawa, K. Kawamura, T. Maruyama

  The Electrochemical Society Proceedings (High Temperature Corrosion and Materials Chemistry Ⅴ) PV 2004-16 127 - 138 2004 [Refereed][Not invited]
  
• Microstructure Evolution of Internal Oxidation Zone Formed in the Initial Stage of the Steam Oxidation of Fe-9Cr-0.26Si Ferritic Steel at 973 K

  M. Ueda, M. Nanko, Y. Oyama, K. Kawamura, Toshio Maruyama

  The Electrochemical Society Proceedings (High Temperature Corrosion and Materials Chemistry Ⅳ) PV 2003-16 117 - 127 2003 [Refereed][Not invited]
  
• Formation and disappearance of an internal oxidation zone in the initial stage of the steam oxidation of Fe–9Cr–0.26Si ferritic steel

  Mitsutoshi Ueda, Makoto Nanko, Kenichi Kawamura, Toshio Maruyama

  Materials at High Temperatures 20 (2) 109 - 114 0960-3409 2003/01 [Refereed][Not invited]
  
• Microstructure development of scales formed in the early stage of steam oxidation of Fe-Cr ferritic alloys at elevated temperatures

  M. Ueda, M. Nanko, K. Kawamura, T. Maruyama

  Materials at High Temperatures 18 (S) 37 - 41 2001 [Refereed][Not invited]
  
• Monitoring of steam oxidation behavior of Fe-Cr ferritic steels using ZrO2 oxygen sensor

  M. Ueda, M. Nanko, T. Maruyama

  The Electrochemical Society Proceedings (High Temperature Corrosion and Materials Chemistry: Per Kofstad Memorial Symposium) PV 99-38 115 - 126 2000 [Refereed][Not invited]
  

MISC

• 特集 よくわかる熱処理技術―熱処理の基礎と応用，そして最近のトピックス 金属の高温酸化から見た熱処理技術

  上田光敏  金属  93-  (6)  489  -494  2023  [Not refereed][Not invited]
  
• Fe-20Cr-35Ni-2.5Nb (at.%)鋼の高温水蒸気酸化挙動に及ぼすWおよびTiの影響

  上田 光敏, 大林 純平, 矢尾 達海, 竹山 雅夫  日本学術振興会 耐熱金属材料第123委員会研究報告  62-  (2)  185  -190  2021  [Not refereed][Not invited]
  
• Solid-State Reaction of Inorganic Materials

  M. Ueda  Journal of the Technical Association of Refractories, Japan (TAIKABUTSU OVERSEAS)  39-  (4)  207  -209  2019  [Not refereed][Not invited]
  
• 1073 KにおけるFe-Cr-Ni-Nb合金の水蒸気酸化挙動に及ぼすW添加の影響

  上田 光敏, 大林 純平, 竹山 雅夫  日本学術振興会 耐熱金属材料第123委員会研究報告  59-  (2)  331  -336  2018  [Not refereed][Not invited]
  
• 無機材料の固体間反応

  上田光敏  耐火物  69-  (9)  399  -401  2017  [Not refereed][Not invited]
  
• 1073 KにおけるFe-Cr-Ni-Nb合金の水蒸気酸化挙動に及ぼす母材組織の影響

  上田 光敏, 勝目 翔太, 竹山 雅夫  日本学術振興会 耐熱金属材料第123委員会研究報告  57-  (3)  302  -307  2016  [Not refereed][Not invited]
  
• 金属の高温酸化

  上田光敏  防錆管理  59-  (2)  47  -52  2015  [Not refereed][Not invited]
  
• 水蒸気酸化－金属の高温酸化におよぼす水蒸気の影響

  上田光敏  金属  81-  (7)  557  -562  2011  [Not refereed][Not invited]
  
• 耐火物技術者のための便利なダイヤグラム－描き方と上手な利用法 第３１回「金属酸化物の溶融塩への溶解度と溶融塩腐食」

  丸山 俊夫, 上田 光敏  耐火物  61-  (8)  426  -429  2009  [Not refereed][Not invited]
  
• 耐火物技術者のための便利なダイヤグラム－描き方と上手な利用法 第２８回「金属酸化物の格子欠陥の化学－Brouwer図の作成法－」その４ 異原子価イオンを添加した場合の格子欠陥濃度

  丸山 俊夫, 上田 光敏  耐火物  61-  (5)  253  -256  2009  [Not refereed][Not invited]
  
• 耐火物技術者のための便利なダイヤグラム－描き方と上手な利用法 第２７回「金属酸化物の格子欠陥の化学－Brouwer図の作成法－」その３ 格子欠陥濃度の酸素ポテンシャル依存性（フレンケル欠陥）

  丸山 俊夫, 上田 光敏  耐火物  61-  (4)  198  -202  2009  [Not refereed][Not invited]
  
• 耐火物技術者のための便利なダイヤグラム－描き方と上手な利用法 第２６回「金属酸化物の格子欠陥の化学－Brouwer図の作成法－」その２ 格子欠陥濃度の酸素ポテンシャル依存性（ショットキー欠陥）

  丸山 俊夫, 上田 光敏  耐火物  61-  (2)  105  -108  2009  [Not refereed][Not invited]
  
• 耐火物技術者のための便利なダイヤグラム－描き方と上手な利用法 第２５回「金属酸化物の格子欠陥の化学－Brouwer図の作成法－」その１ 格子欠陥はなぜできるのか？（内因的欠陥）

  丸山 俊夫, 上田 光敏  耐火物  61-  (1)  50  -53  2009  [Not refereed][Not invited]
  
• 耐火物技術者のための便利なダイヤグラム－描き方と上手な利用法 第１２回「金属－酸素－塩素系の相安定図と蒸気圧」その４ ―代表的な耐火物における相安定図と蒸気種の蒸気圧―

  上田 光敏, 丸山 俊夫  耐火物  59-  (6)  317  -323  2007  [Not refereed][Not invited]
  
• 耐火物技術者のための便利なダイヤグラム－描き方と上手な利用法 第１１回「金属－酸素－塩素系の相安定図と蒸気圧」その３ ―クロム－酸素－塩素系における相安定図とクロム含有蒸気種の蒸気圧―

  上田 光敏, 丸山 俊夫  耐火物  59-  (5)  261  -266  2007  [Not refereed][Not invited]
  
• 耐火物技術者のための便利なダイヤグラム－描き方と上手な利用法 第１０回「金属－酸素－塩素系の相安定図と蒸気圧」その２ ―金属－酸素－塩素系における金属塩化物の蒸気圧―

  丸山 俊夫, 上田 光敏  耐火物  59-  (4)  205  -209  2007  [Not refereed][Not invited]
  
• 耐火物技術者のための便利なダイヤグラム－描き方と上手な利用法 第９回「金属－酸素－塩素系の相安定図と蒸気圧」その１ ―金属－酸素－塩素系の凝縮相の相安定図―

  丸山 俊夫, 上田 光敏  耐火物  59-  (2)  105  -109  2007  [Not refereed][Not invited]
  
• 耐火物技術者のための便利なダイヤグラム－描き方と上手な利用法 第３回「エリンガム図」(Ellingham diagram) その３ ―複合酸化物，合金系の活量と平衡酸素分圧－

  丸山 俊夫, 上田 光敏  耐火物  58-  (6)  325  -329  2006  [Not refereed][Not invited]
  
• 耐火物技術者のための便利なダイヤグラム－描き方と上手な利用法 第２回「エリンガム図」(Ellingham diagram) その２ ―H2/H2O, CO/CO2系の平衡酸素分圧－

  丸山 俊夫, 上田 光敏  耐火物  58-  (5)  269  -274  2006  [Not refereed][Not invited]
  
• 耐火物技術者のための便利なダイヤグラム－描き方と上手な利用法 第１回「エリンガム図」(Ellingham diagram) その１ ―金属／金属酸化物系の平衡酸素分圧－

  丸山 俊夫, 上田 光敏  耐火物  58-  (4)  218  -222  2006  [Not refereed][Not invited]
  

Presentations

• 酸素水素燃焼タービン発電システムに資する新規Ni基耐熱合金の耐水蒸気酸化特性  [Invited]

  上田光敏

  2024年北海道夏期セミナー 主題「脱炭素・循環型社会の構築に向けた耐熱材料の高温腐食防食」  2024/08  岩見沢市民会館・文化ホール まなみーる 多目的室1,2  （一社）表面技術協会北海道支部，（公社）腐食防食学会北海道支部
  

Association Memberships

• The Electrochemical Society of Japan   The Iron and Steel Institute of Japan   The Japan Institute of Metals and Materials   （公社）腐食防食学会   The Technical Association of Refractories, Japan   The Solid State Ionics Society of Japan   

Research Projects

• 高温その場観察による耐熱金属材料の水蒸気酸化挙動に及ぼす水素の影響の明確化

  日本学術振興会：科学研究費助成事業

  Date (from‐to) : 2023/04 -2026/03 

  Author : 上田 光敏
• Novel utilization method of strengthening phases for improving steam oxidation behavior of heat-resistant steels

  Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research

  Date (from‐to) : 2019/04 -2023/03 

  Author : Ueda Mitsutoshi

   

  This study focuses on the effects of alloying elements and strengthening phases on steam oxidation behavior of heat resistant steels at elevated temperatures. Niobium and tungsten were selected as alloying elements and steam oxidation tests were conducted by using model Fe-Cr and Fe-Cr-Ni alloys with the alloying elements. There are two effects of alloying elements on steam oxidation behavior: the effect of solid solution and the effect of precipitation. As a results of two effects, alloying elements of niobium and tungsten contribute to improve steam oxidation resistance of the alloys.
• Design principle of optimal surface texture for improving steam oxidation behavior of heat-resisting materials

  Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research

  Date (from‐to) : 2014/04 -2018/03 

  Author : UEDA MITSUTOSHI

   

  This research focuses on effect of crystallographic orientation of the substrate on microstructure development of the oxide scale formed on heat resistant steels during steam oxidation. Fe-Cr-Ni alloys was used as a model system of austenitic steels for the various oxidation tests. Before steam oxidation, crystallographic orientation of the substrate was determined by electron backscatter diffraction. After steam oxidation, microstructure of the oxide scale formed on each crystal grain of the substrate was observed and categolozed based on crystallographic orientation. As a result, crystal grain of Fe-Cr-Ni alloys, which has (111) plane on the surface, has good oxidation resistance due to the formation of protective oxide scale.
• Development of Si-free Sealing Technique for Solid Oxide Fuel Cells withLong-term Durability at High-temperatures

  Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research

  Date (from‐to) : 2010 -2012 

  Author : AKASHI Takaya, NANKO Makoto, HAYASHI Shigenari, KIYONO Hajime, UEDA Mitsutoshi

   

  Silicon-free gas sealing technique was developed, employing liquid-phase-oxidation (LPO) joining of yttria-stabilized zirconia (YSZ) and stainless alloy via ZrO2-dispersed Al interlayer. During the LPO-joining, the ZrO2/Al2O3 composite interlayer was formed between YSZ and Fe-Cr alloy. The composite interlayer had an excellent oxygen gas seal property, and high durability under thermal cycles. Furthermore, it was also confirmed that the composite interlayer formed via NiO-dispersed Al interlayer had high durability under thermal cycles.
• Control of kinetic microstructure change in the gas separation membrane of metal complex oxide and extension of lifetime

  Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research

  Date (from‐to) : 2007 -2009 

  Author : UEDA Mitsutoshi

   

  Kinetic microstructure change in the membrane of SrCo_<0.8>Fe_<0.2>O_<3-δ> under the oxygen chemical potential gradient at 1173 K was experimentally observed in this study. From the experimental results, it was found that microstructure of the membrane drastically changed by the oxygen permeation through the membrane. Although this study also tried to estimate the microstructure change by calculating the divergence of the ionic flux through the membrane, it was difficult to obtain the calculated results.

Industrial Property Rights

• 特開2021-162404:金属酸化物薄膜還元検知センサ  2021/10/11

  上田光敏, 林 優作, 河村 憲一, 入澤 恵理子, 小松 篤史, 大久保 成彰, 山口 周  国立研究開発法人 日本原子力研究開発機構, 国立大学法人 東京工業大学