Grain size and its effect on tensile property of ultra-purified 18Ni maraging steel

IMR OpenIR

	Grain size and its effect on tensile property of ultra-purified 18Ni maraging steel
	He, Y ; Su, GY ; Qu, WS ; Kong, FY ; He, L ; Yang, K
通讯作者	He, Y()
	2002-01-18
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	38 期号:1 页码:53-57
摘要	Variations of the grain size and its distribution of an ultra-purified 18Ni (2200 MPa grade) maraging steel under different solution treatment temperatures (STT) have been investigated, and the relationships between prior austenite grain size and tensile properties in both solutions and aging conditions were examined, and the mechanism was also discussed. The results show that the prior austenite grain size normally and consistently increases with increase of STT. Effects of the prior austenite grain size on strength and ductility are nearly independent of STT for the maraging steel in unaged state, and the thermal brittle at high solution temperature resulting from the segregation of inclusions, such as Ti(C, N), at prior austenite grain boundary is avoided because trace elements were removed to extremely low level. However, the Hall-Petch relationship is obeyed in aged condition, and the increase in prior austenite grain size induced the segregation of precipitates on grain boundary and aging brittle.
关键词	18Ni maraging steel solution treatment grain size mechanical property ultra-purified melting
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000173742700011
出版者	SCIENCE CHINA PRESS
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/321006/113762
专题	中国科学院金属研究所
通讯作者	He, Y
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Shijiazhuang Iron & Steel Factory, Dept Tech Supervis, Shijiazhuang 050031, Peoples R China
推荐引用方式 GB/T 7714	He, Y,Su, GY,Qu, WS,et al. Grain size and its effect on tensile property of ultra-purified 18Ni maraging steel[J]. ACTA METALLURGICA SINICA,2002,38(1):53-57.
APA	He, Y,Su, GY,Qu, WS,Kong, FY,He, L,&Yang, K.(2002).Grain size and its effect on tensile property of ultra-purified 18Ni maraging steel.ACTA METALLURGICA SINICA,38(1),53-57.
MLA	He, Y,et al."Grain size and its effect on tensile property of ultra-purified 18Ni maraging steel".ACTA METALLURGICA SINICA 38.1(2002):53-57.