Effect of Solution Heat-Treatment on the Oxidation Resistance of Ni-Base Single-Crystal Superalloy

被引：1
作者：
Tabata, Chihiro [1 ,2 ]
Osada, Toshio [1 ]
Yokokawa, Tadaharu [1 ]
Ikeda, Ayako [1 ]
Kawagishi, Kyoko [1 ,2 ]
Suzuki, Shinsuke [2 ,3 ,4 ]
机构：
[1] Natl Inst Mat Sci NIMS, 1-2-1 Sengen, Tsukuba, Ibaraki 3050047, Japan
[2] Waseda Univ, Dept Mat Sci, 3-4-1 Okubo,Shinjuku ku, Tokyo 1698555, Japan
[3] Waseda Univ, Dept Appl Mech & Aerosp Engn, 3-4-1 Okubo,Shinjuku ku, Tokyo 1698555, Japan
[4] Waseda Univ, Kagami Mem Res Inst Mat Sci & Technol, Tokyo 1690051, Japan
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2023年 / 54卷 / 12期
关键词：
BEHAVIOR; ALLOYS; AIR;
D O I：
10.1007/s11661-023-07205-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
To clarify the effect of solution heat-treatment on the oxidation resistance of Ni-base single-crystal superalloy TMS-238, the evaluation of dendrite/inter-dendrite segregation of alloying elements in the as-cast and heat-treated samples, and its effect on cyclic oxidation resistance were investigated. Cyclic oxidation test results at 1100 degrees C for up to 150 cycles clearly showed that the as-cast samples with element segregations had lower oxidation resistance compared to heat-treated samples with homogeneous structure. Further, for the as-cast sample, rapid growth and spallation of oxide consisting of NiO, Cr2O3, and Al2O3 were observed around the dendrite core for 10 cycles of oxidation. Analysis of sub-surface on sample isothermally oxidized at 1100 degrees C for 10 minutes showed that rapid oxide growth is due to the formation of discontinuous Al2O3 layer at dendrite core with lower Al concentration. Furthermore, in this study, the threshold value of Al concentration and Gibbs energy for the formation of continuous Al2O3 layer were estimated and determined to be around 5.2 wt pct and - 556.6 +/- 0.5 kJ/mol, respectively. This indicated that the solution heat-treatment for TMS-238 should be conducted above 1305 degrees C for exhibiting oxidation resistance at 1100 degrees C, to meet the threshold value within the whole region between dendrite and inter-dendrite.
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收藏
页码：4825 / 4833
页数：9
相关论文
共 34 条
  • [1] Birks N, 2006, INTRODUCTION TO THE HIGH-TEMPERATURE OXIDATION OF METALS, 2ND EDITION, P101
  • [2] On the Roles of Oxidation and Vaporization in Surface Micro-structural Instability during Solution Heat Treatment of Ni-base Superalloys
    D'Souza, Neil
    Welton, Dean
    West, Geoff D.
    Edmonds, Ian M.
    Wang, Hang
    [J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2014, 45A (13): : 5968 - 5981
  • [3] DOYCHAK J, 1994, INTERMETALLIC COMPOU, V1, P977
  • [4] Effects of Ta on the high temperature oxidation behavior of IN617 alloy in air
    Gao, Shuang
    He, Bo
    Zhou, Lanzhang
    Hou, Jieshan
    [J]. CORROSION SCIENCE, 2020, 170
  • [5] OXIDATION OF NI-CR-AL ALLOYS BETWEEN 1000 DEGREES AND 1200 DEGREES C
    GIGGINS, CS
    PETTIT, FS
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1971, 118 (11) : 1782 - &
  • [6] Influence of the Co/Ni Ratio and Dendritic Segregations on the High-Temperature Oxidation Resistance of Multinary Co-Rich Superalloys at 850 °C and 1050 °C
    Hagen, S. P.
    Weiser, M.
    Abu-Khousa, B.
    Virtanen, S.
    [J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2022, 53 (04): : 1552 - 1571
  • [7] Harada H., 1979, TETSU TO HAGANE, V65, P337
  • [8] Harada H., 2015, J. Gas Turbine Soc. Jpn, V43, P349
  • [9] Harris K., 1984, SUPERALLOYS 1984, P221
  • [10] Oxidation behavior of a single-crystal Ni-base superalloy in air at 900, 1000 and 1100°C
    Huang, L.
    Sun, X. F.
    Guan, H. R.
    Hu, Z. Q.
    [J]. OXIDATION OF METALS, 2006, 65 (3-4): : 207 - 222
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