Effect of extrusion speed on microstructure and mechanical properties of the Mg-Ca binary alloy

doi:10.1016/j.jma.2020.05.011

CORC > 金属研究所 > 中国科学院金属研究所

	Effect of extrusion speed on microstructure and mechanical properties of the Mg-Ca binary alloy
	Li, Jingren 1; Zhang, Aiyue 1; Pan, Hucheng 1; Ren, Yuping 2; Zeng, Zhuoran 3; Huang, Qiuyan 4; Yang, Changlin 5; Ma, Lifeng 6; Qin, Gaowu 2
刊名	JOURNAL OF MAGNESIUM AND ALLOYS
	2021-07-15
卷号	9 期号:4 页码:1297-1303
关键词	Extrusion speed Microstructure Mechanical properties Mg-Ca alloy
ISSN号	2213-9567
DOI	10.1016/j.jma.2020.05.011
通讯作者	Pan, Hucheng(panhc@atm.neu.edu.cn) ; Qin, Gaowu(qingw@smm.neu.edu.cn)
英文摘要	This work reported the effect of extrusion speeds on the microstructures and mechanical properties of Mg-Ca binary alloy. The results showed that yield strength of the as-extruded Mg-1.2 wt.% Ca alloys decrease from similar to 360 MPa to similar to 258 MPa as the ram speed increases from 0.4 mm/s to 2.4 mm/s, and the elongation increases from similar to 3.9% to similar to 12.2%. The microstructure changes from bimodal grain feature to the complete dynamical recrystallization (DRX) with increase of the extrusion speed. The ultrafine DRXed grains in size of similar to 0.85 mu m, the numerous nano-Mg2Ca particles dispersing along the grain boundaries and interiors, as well as the high density of residual dislocations, should account for the high strength. It is believed that the high degree of dynamic recrystallization and the resulting texture randomization play the critical roles in the ductility enhancement of the high-speed extruded Mg alloys. (C) 2020 Chongqing University. Publishing services provided by Elsevier B.V. on behalf of KeAi Communications Co. Ltd.
资助项目	National Natural Science Foundation of China[51525101] ; National Natural Science Foundation of China[U1610253] ; National Natural Science Foundation of China[51701211] ; National Natural Science Foundation of China[51971053] ; Project of Promoting Talents in Liaoning province[XLYC1808038] ; State Key Laboratory of Solidification Processing in NPU[SKLSP201920] ; Fundamental Research Funds for the Central Universities[N2002011] ; joint R&D fund of Liaoning Shenyang National Research Center for Materials Science[2019JH3/30100040]
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	KEAI PUBLISHING LTD
WOS记录号	WOS:000669899200014
资助机构	National Natural Science Foundation of China ; Project of Promoting Talents in Liaoning province ; State Key Laboratory of Solidification Processing in NPU ; Fundamental Research Funds for the Central Universities ; joint R&D fund of Liaoning Shenyang National Research Center for Materials Science
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/159875]
专题	金属研究所_中国科学院金属研究所
通讯作者	Pan, Hucheng; Qin, Gaowu
作者单位	1.Northeastern Univ, Sch Mat Sci & Engn, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Peoples R China 2.Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110819, Peoples R China 3.Monash Univ, Dept Mat Sci & Engn, Clayton, Vic 3800, Australia 4.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 5.Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China 6.Taiyuan Univ Sci & Technol, Shanxi Prov Key Lab Met Equipment Design & Techno, Taiyuan 030024, Peoples R China
推荐引用方式 GB/T 7714	Li, Jingren,Zhang, Aiyue,Pan, Hucheng,et al. Effect of extrusion speed on microstructure and mechanical properties of the Mg-Ca binary alloy[J]. JOURNAL OF MAGNESIUM AND ALLOYS,2021,9(4):1297-1303.
APA	Li, Jingren.,Zhang, Aiyue.,Pan, Hucheng.,Ren, Yuping.,Zeng, Zhuoran.,...&Qin, Gaowu.(2021).Effect of extrusion speed on microstructure and mechanical properties of the Mg-Ca binary alloy.JOURNAL OF MAGNESIUM AND ALLOYS,9(4),1297-1303.
MLA	Li, Jingren,et al."Effect of extrusion speed on microstructure and mechanical properties of the Mg-Ca binary alloy".JOURNAL OF MAGNESIUM AND ALLOYS 9.4(2021):1297-1303.