Microstructure and Mechanical Properties of a Nitride-Strengthened Reduced Activation Ferritic/Martensitic Steel

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	Microstructure and Mechanical Properties of a Nitride-Strengthened Reduced Activation Ferritic/Martensitic Steel
	Q. G. Zhou; W. F. Zhang; W. Yan; W. Wang; W. Sha; Y. Y. Shan; K. Yang
	2012
发表期刊	Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science
ISSN	1073-5623
卷号	43A 期号:13 页码:5079-5087
摘要	Nitride-strengthened reduced activation ferritic/martensitic (RAFM) steels are developed taking advantage of the high thermal stability of nitrides. In the current study, the microstructure and mechanical properties of a nitride-strengthened RAFM steel with improved composition were investigated. Fully martensitic microstructure with fine nitrides dispersion was achieved in the steel. In all, 1.4 pct Mn is sufficient to suppress delta ferrite and assure the steel of the full martensitic microstructure. Compared to Eurofer97, the steel showed similar strength at room temperature but higher strength at 873 K (600 A degrees C). The steel exhibited very high impact toughness and a low ductile-to-brittle transition temperature (DBTT) of 243 K (-30 A degrees C), which could be further reduced by purification.
部门归属	[zhou, qiangguo; zhang, wenfeng; yan, wei; wang, wei; shan, yiyin; yang, ke] chinese acad sci, inst met res, shenyang 110016, peoples r china. [sha, wei] queens univ belfast, sch planning architecture & civil engn, belfast bt7 1nn, antrim, north ireland.;zhou, qg (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china.;weiyan@imr.ac.cn
关键词	Creep-behavior High-temperature Heat-treatment Z-phase Nitrogen
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60529
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Q. G. Zhou,W. F. Zhang,W. Yan,et al. Microstructure and Mechanical Properties of a Nitride-Strengthened Reduced Activation Ferritic/Martensitic Steel[J]. Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science,2012,43A(13):5079-5087.
APA	Q. G. Zhou.,W. F. Zhang.,W. Yan.,W. Wang.,W. Sha.,...&K. Yang.(2012).Microstructure and Mechanical Properties of a Nitride-Strengthened Reduced Activation Ferritic/Martensitic Steel.Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science,43A(13),5079-5087.
MLA	Q. G. Zhou,et al."Microstructure and Mechanical Properties of a Nitride-Strengthened Reduced Activation Ferritic/Martensitic Steel".Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science 43A.13(2012):5079-5087.