Effects of long-term aging at 1070 °C on microstructure of Ni3Al-base single-crystal alloy IC6SX

被引：5
|
作者：
Li Ming [1 ]
Song Jinxia [1 ]
Li Shusuo [2 ]
Han Yafang [1 ]
机构：
[1] Beijing Inst Aeronaut Mat, Natl Key Lab Adv High Temp Struct Mat, Beijing 100095, Peoples R China
[2] Beijing Univ Aeronaut & Astronaut, Sch Mat Sci & Engn, Beijing 100191, Peoples R China
来源：
RARE METALS | 2011年 / 30卷
关键词：
oxides; IC6SX; Ni3Al; long-term aging; microstructure; STRESS RUPTURE PROPERTIES; MECHANICAL-PROPERTIES;
D O I：
10.1007/s12598-011-0300-y
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effects of long-term aging at 1070 degrees C for periods of 100 h to 1500 h on microstructure of Ni3Al-base single-crystal alloy IC6SX were examined by SEM, EDX and TEM. Results show that alloy IC6SX undergoes following microstructure changes during long-term aging: a large number of rod-like Y-NiMo phases and carbides precipitate, and more of them appear in the interdendritic areas than in the dendritic arms; gamma-phase aggregate and coarsen, and no longer show a continuous network-like distribution; adjacent gamma' phases grow bigger and become connected with each other; some larger sized gamma' phases are discovered in the dendritic arms; after aging for 300 h, gamma phases amid a row of adjacent gamma' phases dissolve to form a gamma' band, and during further aging, gamma phases beside the gamma' band grow wider and finally occupy the gamma' band, where a gamma band is formed; a small portion of Y-NiMo phases are found to re-dissolve to form gamma phases after aging for 1500 h.
引用
收藏
页码：345 / 348
页数：4
相关论文
共 30 条
  • [21] Correlations between microstructure evolution and mechanical behavior of a nickel-based single crystal superalloy with long-term aging effects
    Yang, Xixi
    Cui, Xue
    Yuan, Huang
    MATERIALS CHARACTERIZATION, 2020, 169 (169)
  • [22] EFFECT OF LONG-TERM AGING AT 760 °C ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF A Ni-Cr-W-Fe ALLOY
    Hao Xianchao
    Zhang Long
    Xiong Chao
    Ma Yingche
    Liu Kui
    ACTA METALLURGICA SINICA, 2015, 51 (07) : 807 - 814
  • [23] Thermal aging effects on the microstructure and short-term oxidation behavior of a cast Ni3Al alloy
    Lee, D
    Santella, ML
    Anderson, IM
    Pharr, GM
    INTERMETALLICS, 2005, 13 (02) : 187 - 196
  • [24] Effect of Ta on the Microstructure and Creep Properties of a Hot-Corrosion Resistant Ni-Based Single-Crystal Superalloy After Long-Term Exposure
    Liu Jing
    Zhang Siqian
    Wang Dong
    Wang Li
    Chen Lijia
    ACTA METALLURGICA SINICA, 2024, 60 (02) : 179 - 188
  • [25] Microstructure evolution of NiCoCrAlY overlay coating for Ni3Al based alloy IC6 turbine vane during long term engine test
    Li, SS
    Song, JX
    Zhou, CG
    Gong, SK
    Han, YF
    INTERMETALLICS, 2005, 13 (3-4) : 309 - 314
  • [26] Creep behaviors of multiphase Ni3Al-based intermetallic alloy after 1000 °C-1000 h long-term aging at intermediate temperatures
    Wu, Jing
    Li, Chong
    Wu, Yuting
    Huang, Yuan
    Xia, Xingchuan
    Liu, Yongchang
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2020, 790
  • [27] Tensile crack inhibition of a PtReAl coated Ni3Al-based single crystal superalloy after long-term oxidation
    Liu, Liang
    He, Jian
    Jiang, Chengyang
    Fan, Dongyuan
    Guo, Hongbo
    JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2023, 25 : 5110 - 5121
  • [28] Long-term oxidation behavior and mechanism of DD6 Ni-based single crystal superalloy at 1050 °C and 1100 °C in air
    Pei, Haiqing
    Wen, Zhixun
    Yue, Zhufeng
    JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 704 : 218 - 226
  • [29] Dissolution behavior of intragranular M23C6 carbide in 617B Ni-base superalloy during long-term aging
    Xiang, Xuemei
    Yao, Zhihao
    Dong, Jianxin
    Sun, Lingen
    JOURNAL OF ALLOYS AND COMPOUNDS, 2019, 787 : 216 - 228
  • [30] Microstructural Degradation and the Effects on Creep Properties of a Hot Corrosion-Resistant Single-Crystal Ni-Based Superalloy During Long-Term Thermal Exposure
    Jiang, X. W.
    Wang, D.
    Wang, Di
    Liu, X. G.
    Zheng, W.
    Wang, Y.
    Xie, G.
    Lou, L. H.
    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2018, 49A (11): : 5309 - 5322
123