Characterization of hot deformation behavior of as-extruded Mg-Gd-Y-Zn-Zr alloy

doi:10.1016/j.jallcom.2014.04.210

	Characterization of hot deformation behavior of as-extruded Mg-Gd-Y-Zn-Zr alloy
	Xia, Xiangsheng 1; Chen, Qiang 1,2; Li, Jianping3 ; Shu, Dayu 1; Hu, Chuankai 1; Huang, Shuhai 1; Zhao, Zude 1
	2014-10-15
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
EISSN	1873-4669
卷号	610 页码:203-211
摘要	The hot deformation characteristics of as-extruded Mg-Gd-Y-Zn-Zr alloy have been investigated by isothermal compression tests in the temperature range of 300-500 °C and strain rate range of 0.001-1 s-1. Several modeling approaches, including flow stress-strain curves, a constitutive Arrhenius type equation model and processing map were used to characterize the deformation behavior of as-extruded Mg-Gd-Y-Zn-Zr alloy in this study. In addition, isothermal precision forging of the component with complex shape was carried out to evaluate the optimum parameters for hot working of the alloy at elevated temperatures. The results show that the deformation activation energy of the experimental alloy was estimated to be 240.477 kJ/mol, and the stress exponent was 3.899. The optimum parameters for hot working of the as-extruded Mg-Gd-Y-Zn-Zr alloy were deformation temperatures of 380-450 °C and strain rates of 0.003-0.02 s-1. According to the determined hot deformation parameters, three components were successfully prepared, and its possessed excellent surface quality, the ultimate tensile strength, yield strength and elongation of the component were 378 MPa, 283 MPa and 11.5%, respectively. © 2014 Elsevier B.V. All rights reserved.
关键词	Activation energy Compression testing Deformation Hot pressing Hot working Isotherms Magnesium alloys Mechanical properties Microstructure Strain rate Stress strain curves Tensile strength Yttrium alloys Zinc alloys Zircaloy Deformation activation energy Deformation Characteristics Hot deformation behaviors Isothermal compression tests Mg-gd-y-zn-zr alloys Processing maps Strength and elongations Ultimate tensile strength
DOI	10.1016/j.jallcom.2014.04.210
收录类别	EI ; SCIE
语种	英语
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:000338811100033
出版者	Elsevier Ltd
EI入藏号	20142217777590
EI分类号	535.2 Metal Forming ; 546.3 Zinc and Alloys ; 547.2 Rare Earth Metals ; 549.2 Alkaline Earth Metals ; 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals ; 951 Materials Science
原始文献类型	Journal article (JA)
出版地	LAUSANNE
引用统计	被引频次：72[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.cqcet.edu.cn/handle/39TD4454/2946
专题	智能制造与汽车学院
作者单位	1.Southwest Technology and Engineering Research Institute, Chongqing 400039, China; 2.Postdoctoral Mobile Station of Mechanics, Harbin Institute of Technology, Harbin 150001, China; 3.Architecture and Materials Institute, Chongqing College of Electronic Engineering, Chong Qing 401331, China
推荐引用方式 GB/T 7714	Xia, Xiangsheng,Chen, Qiang,Li, Jianping,et al. Characterization of hot deformation behavior of as-extruded Mg-Gd-Y-Zn-Zr alloy[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2014,610:203-211.
APA	Xia, Xiangsheng.,Chen, Qiang.,Li, Jianping.,Shu, Dayu.,Hu, Chuankai.,...&Zhao, Zude.(2014).Characterization of hot deformation behavior of as-extruded Mg-Gd-Y-Zn-Zr alloy.JOURNAL OF ALLOYS AND COMPOUNDS,610,203-211.
MLA	Xia, Xiangsheng,et al."Characterization of hot deformation behavior of as-extruded Mg-Gd-Y-Zn-Zr alloy".JOURNAL OF ALLOYS AND COMPOUNDS 610(2014):203-211.