CHANGES OF MICROSTRUCTURE AND MECHANICAL PROPERTY OF THE CLAM STEEL AFTER LONG TERM AGING AT 600 degrees C

doi:10.3724/SP.J.1037.2011.00156

IMR OpenIR

	CHANGES OF MICROSTRUCTURE AND MECHANICAL PROPERTY OF THE CLAM STEEL AFTER LONG TERM AGING AT 600 degrees C
	Yang Chunguang 1; Yan Wei 1; Wang Wei 1; Shan Yiyin 1; Yang Ke 1; Wu Yican 2
通讯作者	Shan Yiyin(yyshan@imr.ac.cn)
	2011-07-11
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	47 期号:7 页码:917-920
摘要	China low activation martensitic (CLAM) steel is a new reduced activation ferritic/martensitic steel developed in China to use for blanket/first-wall structures of the D-T fusion reactor. The microstructures and mechanical properties of the CLAM steel after aging at 600 degrees C for 1100 and 3000 h were investigated by SEM and TEM. The results showed that the prior austenite grain size did not increase with increasing aging time, while the precipitates at grain boundaries and inside grains were increased. The strength of CLAM steel was slightly increased after aging for 1100 h. When the aging time was prolonged to 3000 h, the strength of CLAM steel was decreased due to coarsening of precipitates. The ductile-brittle transition temperature (DBTT) was increased after aging for 1100 h. However, when the aging time increased to 3000 h, the DBTT lowered to the as heat-treated level. The changes of strength, toughness and DBTT after aging were interpreted from the view points of precipitation and coarsening behaviors of precipitates. It was also noticed that the low W content in the CLAM steel can effectively postpone the formation of Laves phase.
关键词	CLAM steel aging mechanical property second phase
资助者	National Basic Research Program of China ; National Key Technology Research and Development Program of China ; The Chinese Academy of Sciences
DOI	10.3724/SP.J.1037.2011.00156
收录类别	SCI
语种	英语
资助项目	National Basic Research Program of China[2008CB717802] ; National Key Technology Research and Development Program of China[2009GB109002] ; The Chinese Academy of Sciences[KJCX2-YW-N35]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000294980700025
出版者	SCIENCE PRESS
引用统计	被引频次：8[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/321006/106451
专题	中国科学院金属研究所
通讯作者	Shan Yiyin
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Solid State Phys, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Yang Chunguang,Yan Wei,Wang Wei,et al. CHANGES OF MICROSTRUCTURE AND MECHANICAL PROPERTY OF THE CLAM STEEL AFTER LONG TERM AGING AT 600 degrees C[J]. ACTA METALLURGICA SINICA,2011,47(7):917-920.
APA	Yang Chunguang,Yan Wei,Wang Wei,Shan Yiyin,Yang Ke,&Wu Yican.(2011).CHANGES OF MICROSTRUCTURE AND MECHANICAL PROPERTY OF THE CLAM STEEL AFTER LONG TERM AGING AT 600 degrees C.ACTA METALLURGICA SINICA,47(7),917-920.
MLA	Yang Chunguang,et al."CHANGES OF MICROSTRUCTURE AND MECHANICAL PROPERTY OF THE CLAM STEEL AFTER LONG TERM AGING AT 600 degrees C".ACTA METALLURGICA SINICA 47.7(2011):917-920.