Tailoring co-precipitation behavior by molybdenum microalloying in high-strength steels

doi:10.1016/j.matchar.2021.111568

IMR OpenIR

	Tailoring co-precipitation behavior by molybdenum microalloying in high-strength steels
	Qiu, Nianshuang 1,4; Shen, Zhuang 1,4; Zuo, Xiaowei 1,4; Zhou, Gang 2,3
通讯作者	Zuo, Xiaowei(zuoxw@epm.neu.edu.cn) ; Zhou, Gang(gzhou@imr.ac.cn)
	2021-12-01
发表期刊	MATERIALS CHARACTERIZATION
ISSN	1044-5803
卷号	182 页码:13
摘要	The precipitation behavior of co-precipitates including Cu-rich precipitates (CRPs) and Ni(Al, Mn) particles and the hardness of the molybdenum microalloying high-strength steels were carefully investigated. It was found that individual additions of Mo atoms gave rise to an obvious hardness effect compared with the carbides precipitation steels. Although Mo atoms were primarily partitioned within the matrix rather than within the coprecipitates, the nucleation/growth process of co-precipitates was accelerated due to reducing the misfit strains between matrix and precipitates. Moreover, with increasing Mo microalloying, the coarsening of coprecipitates was retarded owing to the reducing coarsening coefficients of co-precipitates. The hardness peak time was shortened and the hardness plateau were prolonged by the precipitation of co-precipitates, showing potential high thermostability of Mo microalloying steels.
关键词	Precipitation-strengthened steels Molybdenum microalloying Nucleation growth Atom probe tomography First-principles
资助者	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; State Key Laboratory of Powder Metallurgy, Central South University, Changsha, China ; Doctoral Scientific Research Foundation of Liaoning Province ; Advanced Computing East China Sub-center
DOI	10.1016/j.matchar.2021.111568
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[U1860103] ; Fundamental Research Funds for the Central Universities[N2009008] ; State Key Laboratory of Powder Metallurgy, Central South University, Changsha, China ; Doctoral Scientific Research Foundation of Liaoning Province[2019-BS-254] ; Advanced Computing East China Sub-center
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
WOS记录号	WOS:000720649400005
出版者	ELSEVIER SCIENCE INC
引用统计	被引频次：3[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/321006/167433
专题	中国科学院金属研究所
通讯作者	Zuo, Xiaowei; Zhou, Gang
作者单位	1.Northeastern Univ, Key Lab Electromagnet Proc Mat, Minist Educ, Shenyang 110819, Peoples R China 2.Cent South Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China 3.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 4.Northeastern Univ, Sch Met, Shenyang 110819, Peoples R China
推荐引用方式 GB/T 7714	Qiu, Nianshuang,Shen, Zhuang,Zuo, Xiaowei,et al. Tailoring co-precipitation behavior by molybdenum microalloying in high-strength steels[J]. MATERIALS CHARACTERIZATION,2021,182:13.
APA	Qiu, Nianshuang,Shen, Zhuang,Zuo, Xiaowei,&Zhou, Gang.(2021).Tailoring co-precipitation behavior by molybdenum microalloying in high-strength steels.MATERIALS CHARACTERIZATION,182,13.
MLA	Qiu, Nianshuang,et al."Tailoring co-precipitation behavior by molybdenum microalloying in high-strength steels".MATERIALS CHARACTERIZATION 182(2021):13.