Genetic design and characterization of novel ultra-high-strength stainless steels strengthened by Ni(3)Ti intermetallic nanoprecipitates

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	Genetic design and characterization of novel ultra-high-strength stainless steels strengthened by Ni(3)Ti intermetallic nanoprecipitates
	W. Xu; P. E. J. Rivera-Diaz-del-Castillo; W. Wang; K. Yang; V. Bliznuk; L. A. I. Kestens; S. van der Zwaag
	2010
发表期刊	Acta Materialia
ISSN	1359-6454
卷号	58 期号:10 页码:3582-3593
摘要	A general computational alloy design approach based on thermodynamic and physical metallurgical principles, and coupled with a genetic optimization scheme, is presented. The method is applied to the design of new ultra-high-strength maraging stainless steels strengthened by Ni(3)Ti intermetallics. In the first design round, the alloy composition is optimized on the basis of precipitate formation at a fixed ageing temperature without considering other steps in the heat treatment. In the second round, the alloy is redesigned, applying an integrated model which allows for the simultaneous optimization of alloy composition and the ageing temperature as well as the prior austenitization temperature. The experimental characterizations of prototype alloys clearly demonstrate that alloys designed by the proposed approach achieve the desired microstructures. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
部门归属	[xu, w.] m2i, nl-2629 hs delft, netherlands. [xu, w.; rivera-diaz-del-castillo, p. e. j.; van der zwaag, s.] delft univ technol, fac aerosp engn, novam grp, nl-2629 hs delft, netherlands. [wang, w.; yang, k.] chinese acad sci, inst met res, shenyang 110016, peoples r china. [bliznuk, v.; kestens, l. a. i.] univ ghent, dept mat sci & engn, b-9052 ghent, belgium.;xu, w (reprint author), m2i, kluyverweg 1, nl-2629 hs delft, netherlands;w.xu@m2i.nl
关键词	Maraging Steels Stainless Steels Thermodynamics Precipitation Alloy Design Free Maraging-steel Heterogeneous Martensitic Nucleation Mechanical-properties Computational Design Alloying Elements Neural-networks Precipitation Microstructure Thermodynamics Optimization
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31613
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. Xu,P. E. J. Rivera-Diaz-del-Castillo,W. Wang,et al. Genetic design and characterization of novel ultra-high-strength stainless steels strengthened by Ni(3)Ti intermetallic nanoprecipitates[J]. Acta Materialia,2010,58(10):3582-3593.
APA	W. Xu.,P. E. J. Rivera-Diaz-del-Castillo.,W. Wang.,K. Yang.,V. Bliznuk.,...&S. van der Zwaag.(2010).Genetic design and characterization of novel ultra-high-strength stainless steels strengthened by Ni(3)Ti intermetallic nanoprecipitates.Acta Materialia,58(10),3582-3593.
MLA	W. Xu,et al."Genetic design and characterization of novel ultra-high-strength stainless steels strengthened by Ni(3)Ti intermetallic nanoprecipitates".Acta Materialia 58.10(2010):3582-3593.