Evolution of microstructure and changes of mechanical properties of CLAM steel after long-term aging

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	Evolution of microstructure and changes of mechanical properties of CLAM steel after long-term aging
	X. Hu; L. X. Huang; W. Yan; W. Wang; W. Sha; Y. Y. Shan; K. Yang
	2013
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	586 页码:253-258
摘要	The China Low Activation Martensitic (CLAM) steel has been developed as a candidate structural material for future fusion reactors. It is essential to investigate the evolution of microstructure and changes of mechanical properties of CLAM steel during thermal exposure. In this study, the long-term thermal aging of the CLAM steel has been carried out in air at 600 degrees C and 650 degrees C for 1100 h, 3000 h and 5000 h. The microstructural evolution with aging time was studied, including characteristics of the growth of M23C6 carbides and the formation of Laves-phase precipitates as well as the evolved subgrains. The microstructural evolution leads to the changes of mechanical properties of the CLAM steel. The Ductile-Brittle Transition Temperature (DBTT) increases significantly during the thermal aging, which is related to the formation of Laves-phase in the steel matrix. The possible mechanism of stabilizing microstructure during the thermal exposure has been analyzed based on the interaction between M23C6 carbides and subgrain boundaries. (C) 2013 Elsevier B.V. All rights reserved.
部门归属	[hu, xue ; huang, lixin ; yan, wei ; wang, wei ; shan, yiyin ; yang, ke] chinese acad sci, inst met res, shenyang 110016, peoples r china. [huang, lixin] yanshan univ, state key lab metastable mat sci & technol, qinhuangdao 066004, peoples r china. [sha, wei] queens univ belfast, sch planning architecture & civil engn, belfast bt9 5ag, antrim, north ireland. ; shan, yy (reprint author), chinese acad sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china. ; yyshan@imr.ac.cn
关键词	Steel Aging Mechanical Characterization Electron Microscopy Light Microscopy Microanalysis Ferritic-martensitic Steel Reduced-activation Steels Behavior Recovery Tensile Eurofer
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/71264
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. Hu,L. X. Huang,W. Yan,et al. Evolution of microstructure and changes of mechanical properties of CLAM steel after long-term aging[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2013,586:253-258.
APA	X. Hu.,L. X. Huang.,W. Yan.,W. Wang.,W. Sha.,...&K. Yang.(2013).Evolution of microstructure and changes of mechanical properties of CLAM steel after long-term aging.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,586,253-258.
MLA	X. Hu,et al."Evolution of microstructure and changes of mechanical properties of CLAM steel after long-term aging".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 586(2013):253-258.