Effect of cross rolling on the microstructure and mechanical performance of a dual-phase structured Mg-8Li-6Zn-1Y (in wt.%) alloy

doi:10.1016/j.jmst.2023.07.052

IMR OpenIR

	Effect of cross rolling on the microstructure and mechanical performance of a dual-phase structured Mg-8Li-6Zn-1Y (in wt.%) alloy
	Wang, Dongliang 1,2; Xu, Daokui 1,2,3,4; Wang, Baojie 5; Yan, Changjian 1,6; Wang, Shuo 1,7; Xu, Xiangbo 1,2; Zhang, Lan 1,2; Lu, Cuilan 1,2
通讯作者	Xu, Daokui(dkxu@imr.ac.cn) ; Wang, Baojie(bjwang@alum.imr.ac.cn) ; Yan, Changjian(cjyan@icost.ac.cn)
	2024-03-20
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	176 页码:132-144
摘要	The microstructure and mechanical performance of the unidirectionally and cross-directionally rolled Mg8Li-6Zn-1Y (in wt.%) sheets have been investigated and compared. It reveals that after the unidirectional rolling (UR), the broken I-phase particles are aggregated at the alpha-Mg/ beta-Li phase interfaces. However, the cross-rolling (CR) process can not only severely break the bulk I-phase, but also cause the obviously uniform distribution of I-phase particles in the matrix phases. Moreover, the average grain size of the CR samples is 3.61 mu m and about 50% that of the UR samples. The maximum texture intensities of alpha- Mg and beta-Li phases in the CR samples are slightly stronger than those in the UR samples. Tensile results demonstrate that the CR process can effectively enhance the tensile properties and remarkably reduce the mechanical anisotropy of the alloy. For the UR samples, the yield strength, ultimate tensile strength, and elongation ratio along the rolling direction (RD) are 164 MPa, 198 MPa, and 16.4%, whereas those along the transverse direction (TD) are 157 MPa, 185 MPa, and 22.0%, respectively. For the CR samples, their mechanical properties are basically the same and the mechanical anisotropy is almost eliminated. The yield strength, ultimate tensile strength, and elongation ratio along the cross-rolling direction 1 (CRD1) and 2 (CRD2) are respectively measured to be 181 MPa and 182 MPa, 220 MPa and 218 MPa, 20.6% and 20.7%. Failure analysis indicates that for the UR samples being tensile tested along the RD and TD, micro- cracks are preferentially initiated in the region of aggregated I-phase particles. For the CR samples being tensile tested along both two cross-rolling directions, the initiation of micro-cracks mainly occurs at the I-phase/matrix phase interfaces and in the interior of matrix phases. (c) 2024 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
关键词	Magnesium-lithium alloy Cross-rolling I-phase Microstructure Mechanical performance
资助者	National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; Liaoning Province's project of Revitalizing Liaoning Talents ; Doctor Startup Fund of Natural Science Foundation Program of Liaoning Province ; High level achievement construction project of Shenyang Ligong University ; Liaoning BaiQianWan Talents Program ; Domain Foundation of Equipment Advance Research of 13th Five-year Plan ; National Key Research and Development Program of China ; Innovation Fund of Institute of Metal Research (IMR) ; Chinese Academy of Sciences (CAS) ; National Basic Research Program of China (973 Program) ; Fundamental Research Fund for the Central Universities ; Bintech-IMR RD Program
DOI	10.1016/j.jmst.2023.07.052
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52071220] ; National Natural Science Foundation of China[U21A2049] ; National Natural Science Foundation of China[51871211] ; National Natural Science Foundation of China[51701129] ; National Natural Science Foundation of China[51971054] ; China Postdoctoral Science Foundation[2023M733572] ; Liaoning Province's project of Revitalizing Liaoning Talents[XLYC1907062] ; Doctor Startup Fund of Natural Science Foundation Program of Liaoning Province[2019-BS-200] ; High level achievement construction project of Shenyang Ligong University[SYLUXM202105] ; Liaoning BaiQianWan Talents Program ; Domain Foundation of Equipment Advance Research of 13th Five-year Plan[61409220118] ; National Key Research and Development Program of China[2017YFB0702001] ; National Key Research and Development Program of China[2016YFB0301105] ; Innovation Fund of Institute of Metal Research (IMR) ; Chinese Academy of Sciences (CAS) ; National Basic Research Program of China (973 Program)[2013CB632205] ; Fundamental Research Fund for the Central Universities[N2009006] ; Bintech-IMR RD Program[GYY-JSBU-2022-009]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001300580200001
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：18[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/321006/189354
专题	中国科学院金属研究所
通讯作者	Xu, Daokui; Wang, Baojie; Yan, Changjian
作者单位	1.Chinese Acad Sci, Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Binzhou Inst Technol, Binzhou 256606, Peoples R China 4.Shandong Key Lab Adv Aluminium Mat & Technol, Binzhou 256606, Peoples R China 5.Shenyang Ligong Univ, Sch Environm & Chem Engn, Shenyang 110159, Peoples R China 6.Inst Corros Sci & Technol, Guangzhou 510070, Peoples R China 7.Northeastern Univ, Key Lab Electromagnet Proc Mat, Minist Educ, Shenyang 110819, Peoples R China
推荐引用方式 GB/T 7714	Wang, Dongliang,Xu, Daokui,Wang, Baojie,et al. Effect of cross rolling on the microstructure and mechanical performance of a dual-phase structured Mg-8Li-6Zn-1Y (in wt.%) alloy[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2024,176:132-144.
APA	Wang, Dongliang.,Xu, Daokui.,Wang, Baojie.,Yan, Changjian.,Wang, Shuo.,...&Lu, Cuilan.(2024).Effect of cross rolling on the microstructure and mechanical performance of a dual-phase structured Mg-8Li-6Zn-1Y (in wt.%) alloy.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,176,132-144.
MLA	Wang, Dongliang,et al."Effect of cross rolling on the microstructure and mechanical performance of a dual-phase structured Mg-8Li-6Zn-1Y (in wt.%) alloy".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 176(2024):132-144.