Microstructure and Mechanical Properties of an Austenitic Heat-Resistant Steel after Service at 570 degrees C and 25.4 MPa for 18 Years

doi:10.1007/s11665-020-05420-6

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	Microstructure and Mechanical Properties of an Austenitic Heat-Resistant Steel after Service at 570 degrees C and 25.4 MPa for 18 Years
	Yang, Xu 1; Yu, Chengwei 2; Yang, Xisheng 1; Yan, Kai 1; Qian, Gong 1; Wang, Baochen 3; Yan, Wei 4; Shi, Xianbo 4
通讯作者	Yang, Xu(592782553@qq.com)
	2021-01-05
发表期刊	JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
ISSN	1059-9495
页码	9
摘要	Microstructure and mechanical properties of an austenitic heat-resistant steel (12Cr18Ni12Ti) serviced in a supercritical power plant at 570 degrees C/25.4 MPa for 160,000 h were investigated. The results show that the hardness and the tensile strength did not decrease; however, the impact toughness was remarkably reduced. The TiC precipitate shows excellent thermostability; for example, it hardly grew up, and no big M23C6 carbides were found. However, large Fe, Cr-rich sigma-phase was doomed to precipitate along grain boundary, which should be responsible for the reduced toughness. The growth of sigma-phase was observed to have an interaction with the preexisted carbides.
关键词	12Cr18Ni12Ti austenitic stainless steel long-term service mechanical properties microstructure
DOI	10.1007/s11665-020-05420-6
收录类别	SCI
语种	英语
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000605155400042
出版者	SPRINGER
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/158885
专题	中国科学院金属研究所
通讯作者	Yang, Xu
作者单位	1.China Special Equipment Inspect & Res Inst, Beijing 100029, Peoples R China 2.Tianjin Guohua Panshan Power Generat Co Ltd, Tianjin 301900, Peoples R China 3.Guohua Elect Power Branch China Shenhua Energy Co, Beijing 100025, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Yang, Xu,Yu, Chengwei,Yang, Xisheng,et al. Microstructure and Mechanical Properties of an Austenitic Heat-Resistant Steel after Service at 570 degrees C and 25.4 MPa for 18 Years[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,2021:9.
APA	Yang, Xu.,Yu, Chengwei.,Yang, Xisheng.,Yan, Kai.,Qian, Gong.,...&Shi, Xianbo.(2021).Microstructure and Mechanical Properties of an Austenitic Heat-Resistant Steel after Service at 570 degrees C and 25.4 MPa for 18 Years.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,9.
MLA	Yang, Xu,et al."Microstructure and Mechanical Properties of an Austenitic Heat-Resistant Steel after Service at 570 degrees C and 25.4 MPa for 18 Years".JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE (2021):9.