Effects of solution treatment on microstructure and tensile properties of as-cast alloy 625

doi:10.1016/S1003-6326(21)65507-3

IMR OpenIR

	Effects of solution treatment on microstructure and tensile properties of as-cast alloy 625
	Yang, Fei 1,2; Hou, Jie-shan 1; Wang, Chang-shuai 1; Zhou, Lan-zhang 1
通讯作者	Hou, Jie-shan(jshou@imr.ac.cn) ; Zhou, Lan-zhang(lzz@imr.ac.cn)
	2021-02-01
发表期刊	TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN	1003-6326
卷号	31 期号:1 页码:426-437
摘要	Effects of solution treatment between 1050 and 1250 degrees C on microstructure and tensile properties of as-cast alloy 625 were investigated. The microstructure and solidification characteristics of the alloy were studied by SEM, EDS, EPMA and DTA. The results showed that the solidification sequence of the alloy should be written as L -> L+gamma -> L+gamma+MC -> L+gamma+MC+gamma/Laves ->gamma+MC+gamma/Laves. After solution treatment at 1225 and 1250 degrees C, incipient melting of Laves phase was observed. The ultimate tensile strength decreased monotonically with the increase of solution treatment temperature, and the yield strength had no significant variation. The elongation increased slightly at first and then reached a minimum value at 1250 degrees C. The fracture mechanism changed from transgranular mode to intergranular mode after solution at 1250 degrees C for the reason that numerous Laves phases melted at grain boundaries and microcracks nucleated in the molten pool. The suitable solution treatment temperature of this alloy was 1200 degrees C.
关键词	as-cast alloy 625 solution treatment microstructure tensile properties gamma/Laves eutectic
资助者	National Natural Science Foundation of China
DOI	10.1016/S1003-6326(21)65507-3
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51571191]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000617542200010
出版者	ELSEVIER
引用统计	被引频次：9[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/321006/160793
专题	中国科学院金属研究所
通讯作者	Hou, Jie-shan; Zhou, Lan-zhang
作者单位	1.Chinese Acad Sci, Inst Met Res, 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	Yang, Fei,Hou, Jie-shan,Wang, Chang-shuai,et al. Effects of solution treatment on microstructure and tensile properties of as-cast alloy 625[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2021,31(1):426-437.
APA	Yang, Fei,Hou, Jie-shan,Wang, Chang-shuai,&Zhou, Lan-zhang.(2021).Effects of solution treatment on microstructure and tensile properties of as-cast alloy 625.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,31(1),426-437.
MLA	Yang, Fei,et al."Effects of solution treatment on microstructure and tensile properties of as-cast alloy 625".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 31.1(2021):426-437.