Texture tailoring and microstructure refinement induced by {11-21} and {10-12} twinning in an extruded Mg-Gd alloy

doi:10.1016/j.jallcom.2023.171590

IMR OpenIR

	Texture tailoring and microstructure refinement induced by {11-21} and {10-12} twinning in an extruded Mg-Gd alloy
	Lv, Ning 1,2; Zhao, Lingyu 1,3; Yan, Hong 1,4; Liu, Boyu 5,6; Mao, Yaozong 7; Shan, Zhiwei 5,6; Chen, Rongshi 1
通讯作者	Zhao, Lingyu(lyzhao202207@163.com) ; Chen, Rongshi(rschen@imr.ac.cn)
	2023-12-05
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	966 页码:11
摘要	An extruded Mg-17Gd (wt%) alloy with < 0001 > fiber texture was compressed along different directions at room temperature. Electron backscatter diffraction characterization was used to investigate the texture tailoring, twinning and dynamic recrystallization (DRX) behaviors. The results indicate that {10-12} and {11-21} twinning activated. The [0001] pole tilted to compression direction with the strain increasing and twinning dominated the texture transition. Activation of {10-12} twinning can be governed by Schmid law, while it is more appropriate to explain the activation of {11-21} twinning by the basal slip transfer condition in the twinned grains according to the slip trace analysis. In addition, operation of {11-21} twinning can facilitate the nucleation of {10-12} twin in the same grain by changing Schmid factor (SF) in the vicinities of {11-21} twin. Grain refinement occurred in the specimens with large strain and the average grain size decrease from -27 & mu;m to -12 & mu;m. The mechanism of grain refinement can be summarized as follows: the mobility of twin boundaries will be restricted because of the twin-twin and dislocation-twin interaction and converted to random high angle grain boundaries (HAGBs). The random HAGBs offer the nucleation sites and the strain accumulation within twins offer the driving force which facilitate the formation of DRXed grains at random HAGBs. Additionally, the SF difference within parent grain may result in the formation of HAGBs, and these HAGBs can connected the random HAGBs that result from the dislocation-twin interaction which result in the formation of new grains.
关键词	Magnesium alloy {11-21} twinning Grain refinement Texture Slip traces analysis
资助者	National Natural Science Foundation of China ; Natural Science Foundation of Shandong Province ; Natural Science Foundation of Liaoning Province ; Bin-tech-IMR Ramp;D Program
DOI	10.1016/j.jallcom.2023.171590
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52271107] ; National Natural Science Foundation of China[51701218] ; Natural Science Foundation of Shandong Province[ZR2021ME241] ; Natural Science Foundation of Liaoning Province[2020-MS-004] ; Bin-tech-IMR Ramp;D Program[GYY-JSBU-2022-012]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001053008100001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：6[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/321006/179021
专题	中国科学院金属研究所
通讯作者	Zhao, Lingyu; Chen, Rongshi
作者单位	1.Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Shenyang Ligong Univ, Sch Mat Sci & Engn, Shenyang 110159, Peoples R China 4.Shandong Univ Sci & Technol, Sch Mat Sci & Engn, Qingdao 266590, Shandong, Peoples R China 5.Xi An Jiao Tong Univ, Ctr Adv Mat Performance Nanoscale CAMP Nano, Xian 710049, Peoples R China 6.Xi An Jiao Tong Univ, Hysitron Appl Res Ctr China HARCC, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China 7.Binzhou Inst Technol, Key Lab Adv Aluminium Mat & Technol, WeiOo UCAS Sci & Technol Pk, Binzhou 256606, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Lv, Ning,Zhao, Lingyu,Yan, Hong,et al. Texture tailoring and microstructure refinement induced by {11-21} and {10-12} twinning in an extruded Mg-Gd alloy[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2023,966:11.
APA	Lv, Ning.,Zhao, Lingyu.,Yan, Hong.,Liu, Boyu.,Mao, Yaozong.,...&Chen, Rongshi.(2023).Texture tailoring and microstructure refinement induced by {11-21} and {10-12} twinning in an extruded Mg-Gd alloy.JOURNAL OF ALLOYS AND COMPOUNDS,966,11.
MLA	Lv, Ning,et al."Texture tailoring and microstructure refinement induced by {11-21} and {10-12} twinning in an extruded Mg-Gd alloy".JOURNAL OF ALLOYS AND COMPOUNDS 966(2023):11.