Effects of Heat Treatment on Microstructural Evolution and Stress Rupture Properties of a Directionally Solidified Nickel-Based Superalloy during Long-Term Thermal Exposure

doi:10.1007/s11665-020-04754-5

IMR OpenIR

	Effects of Heat Treatment on Microstructural Evolution and Stress Rupture Properties of a Directionally Solidified Nickel-Based Superalloy during Long-Term Thermal Exposure
	Jiang, X. W.1; Wu, J. J.1,2; Song, P.1,2; Yin, B.1,2; Wang, D.1; Wang, Y.1; Dong, J. S.1; Shen, J.1; Li, H.1; Lou, L. H.1
通讯作者	Jiang, X. W.(xwjiang@imr.ac.cn)
	2020-04-04
发表期刊	JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
ISSN	1059-9495
卷号	29 期号:4 页码:15
摘要	Effects of a low-temperature solution heat treatment (SHT) below gamma ' solvus temperature and a high-temperature partial solution heat treatment (SHT) above gamma ' solvus temperature on microstructural evolution and stress rupture properties of a directionally solidified nickel-based superalloy during long-term thermal exposure at 900 degrees C were investigated in detail. The two heat treatments generated different microstructures, e.g., different gamma ' sizes and surface fractions of residual gamma-gamma ' eutectic phase. Carbides in the two heat-treated samples exhibited different microstructural stability during the subsequent long-term thermal exposure. The creep lifetime at 870 degrees C/310 MPa of the samples treated by the high-temperature SHT is more than two times of that treated by the low-temperature SHT, whereas the creep lifetime of the samples treated by the high-temperature partial SHT exhibited a sharp reduction after 1000-h exposure and then decreased by a steady rate up to 10,000-h exposure. In comparison, the creep lifetime of the samples treated by the low-temperature SHT exhibits a slower reduction rate from 0- up to 10,000-h exposure.
关键词	heat treatment microstructure stress rupture thermal exposure
资助者	National Key Research and Development Program of China ; National Science and Technology Major Project ; National Natural Science Foundation of China
DOI	10.1007/s11665-020-04754-5
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2016YFB0701403] ; National Science and Technology Major Project[2017VII-0008-0101] ; National Natural Science Foundation of China[51674235] ; National Natural Science Foundation of China[51631008]
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000523400700001
出版者	SPRINGER
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/138060
专题	中国科学院金属研究所
通讯作者	Jiang, X. W.
作者单位	1.Chinese Acad Sci, Inst Met Res, Superalloys Div, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Jiang, X. W.,Wu, J. J.,Song, P.,et al. Effects of Heat Treatment on Microstructural Evolution and Stress Rupture Properties of a Directionally Solidified Nickel-Based Superalloy during Long-Term Thermal Exposure[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,2020,29(4):15.
APA	Jiang, X. W..,Wu, J. J..,Song, P..,Yin, B..,Wang, D..,...&Lou, L. H..(2020).Effects of Heat Treatment on Microstructural Evolution and Stress Rupture Properties of a Directionally Solidified Nickel-Based Superalloy during Long-Term Thermal Exposure.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,29(4),15.
MLA	Jiang, X. W.,et al."Effects of Heat Treatment on Microstructural Evolution and Stress Rupture Properties of a Directionally Solidified Nickel-Based Superalloy during Long-Term Thermal Exposure".JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE 29.4(2020):15.