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

doi:10.1016/j.matchar.2021.111568

CORC > 金属研究所 > 中国科学院金属研究所

	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
刊名	MATERIALS CHARACTERIZATION
	2021-12-01
卷号	182 页码:13
关键词	Precipitation-strengthened steels Molybdenum microalloying Nucleation growth Atom probe tomography First-principles
ISSN号	1044-5803
DOI	10.1016/j.matchar.2021.111568
通讯作者	Zuo, Xiaowei(zuoxw@epm.neu.edu.cn) ; Zhou, Gang(gzhou@imr.ac.cn)
英文摘要	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.
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
语种	英语
出版者	ELSEVIER SCIENCE INC
WOS记录号	WOS:000720649400005
资助机构	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
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/167432]
专题	金属研究所_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.