Deformation and fracture mechanisms of an annealing-tailored "bimodal" grain-structured Mg alloy

doi:10.1016/j.jmst.2019.06.008

CORC > 金属研究所 > 中国科学院金属研究所

	Deformation and fracture mechanisms of an annealing-tailored "bimodal" grain-structured Mg alloy
	Wang, Baojie 1; Xu, Daokui 2,4; Sheng, Liyuan 3; Han, Enhou 2,4; Sun, Jie 1
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2019-11-01
卷号	35 期号:11 页码:2423-2429
关键词	Mg alloy Grain structure Deformation mechanism Cracking Fracture
ISSN号	1005-0302
DOI	10.1016/j.jmst.2019.06.008
通讯作者	Xu, Daokui(dkxu@imr.ac.cn) ; Sheng, Liyuan(lysheng@yeah.net)
英文摘要	Through investigating and comparing the mechanical behavior of an as-rolled Mg-3%Al-1%Zn(wt%) alloy before and after annealing treatments, it was revealed that the formation of annealing-tailored bimodal grain structure ensured the 330 degrees C/4 h samples having a good combination of tensile strength and plasticity. Failure analysis demonstrated that for the as-rolled and 330 degrees C/1 h samples with fine grain structure, their plastic deformation was mainly attributed to basal slips, whereas the deformation mechanism in the bimodal grain-structured samples was dominated by basal slips in fine grains and twinning in coarse grains. For the 330 degrees C/8 h samples with coarse grain structure, high densities of twins were activated. Meanwhile, basal slips occurred in the twinned and un-twinned areas of coarse grains and could pass through twin boundaries. For differently treated samples, cracking preferentially occurred along slip bands, resulting in their transgranular fractures. (C) 2019 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
资助项目	Strategic New Industry Development Special Foundation of Shenzhen[JCYJ20170306141749970] ; National Natural Science Foundation of China[51871211] ; National Natural Science Foundation of China[51701129] ; International Joint Laboratory for Light Alloys ; National Key Research and Development Program of China[2017YFB0702001] ; Liaoning BaiQianWan Talents Program ; Innovation Fund of Institute of Metal Research (IMR), Chinese Academy of Sciences (CAS)
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	JOURNAL MATER SCI TECHNOL
WOS记录号	WOS:000497965900001
资助机构	Strategic New Industry Development Special Foundation of Shenzhen ; National Natural Science Foundation of China ; International Joint Laboratory for Light Alloys ; National Key Research and Development Program of China ; Liaoning BaiQianWan Talents Program ; Innovation Fund of Institute of Metal Research (IMR), Chinese Academy of Sciences (CAS)
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/136058]
专题	金属研究所_中国科学院金属研究所
通讯作者	Xu, Daokui; Sheng, Liyuan
作者单位	1.Shenyang Ligong Univ, Sch Environm & Chem Engn, Shenyang 110159, Liaoning, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Liaoning, Peoples R China 3.Peking Univ, Shenzhen Inst, Shenzhen Key Lab Human Tissue Regenerate & Repair, Shenzhen 518057, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Environm Corros Ctr, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Wang, Baojie,Xu, Daokui,Sheng, Liyuan,et al. Deformation and fracture mechanisms of an annealing-tailored "bimodal" grain-structured Mg alloy[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2019,35(11):2423-2429.
APA	Wang, Baojie,Xu, Daokui,Sheng, Liyuan,Han, Enhou,&Sun, Jie.(2019).Deformation and fracture mechanisms of an annealing-tailored "bimodal" grain-structured Mg alloy.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,35(11),2423-2429.
MLA	Wang, Baojie,et al."Deformation and fracture mechanisms of an annealing-tailored "bimodal" grain-structured Mg alloy".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 35.11(2019):2423-2429.