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CHANGES OF MICROSTRUCTURE AND MECHANICAL PROPERTY OF THE CLAM STEEL AFTER LONG TERM AGING AT 600 degrees C
Yang Chunguang1; Yan Wei1; Wang Wei1; Shan Yiyin1; Yang Ke1; Wu Yican2
Corresponding AuthorShan Yiyin(yyshan@imr.ac.cn)
2011-07-11
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume47Issue:7Pages:917-920
AbstractChina 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.
KeywordCLAM steel aging mechanical property second phase
Funding OrganizationNational Basic Research Program of China ; National Key Technology Research and Development Program of China ; The Chinese Academy of Sciences
DOI10.3724/SP.J.1037.2011.00156
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000294980700025
PublisherSCIENCE PRESS
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/106451
Collection中国科学院金属研究所
Corresponding AuthorShan Yiyin
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
2.Chinese Acad Sci, Inst Solid State Phys, Hefei 230031, Peoples R China
Recommended Citation
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.
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