Effects of forming parameters on microstructure and mechanical properties of a cup-shaped Mg-8.20Gd-4.48Y-3.34Zn-0.36Zr alloy sample manufactured by thixoforming

doi:10.1007/s00170-018-3114-3

IMR OpenIR

	Effects of forming parameters on microstructure and mechanical properties of a cup-shaped Mg-8.20Gd-4.48Y-3.34Zn-0.36Zr alloy sample manufactured by thixoforming
	Xie, Zong-Yao 1; Tian, Yan 1; Li, Qian 1; Zhou, Jian-Cheng 2; Meng, Yi 1
通讯作者	Meng, Yi(mengyi@cqu.edu.cn)
	2019-04-01
发表期刊	INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
ISSN	0268-3768
卷号	101 期号:5-8 页码:1807-1819
摘要	Thixoforming experiments of a cup-shaped Mg-8.20Gd-4.48Y-3.34Zn-0.36Zr alloy sample were carried out on a hydraulic press at different temperatures under different forming loads. Metallographic analysis, Vickers hardness test, and tensile tests were conducted to investigate the microstructure and mechanical properties of the samples formed under different forming parameters. Samples without macro- and micro-defects formed successfully at 580 degrees C under different forming loads were attributed to the excellent formability of semisolid slurry with homogeneous globular microstructure. Because solid and liquid phases in the semisolid slurries exhibited different forming behaviors during thixoforming, liquid segregation occurred and resulted in the inhomogeneous microstructural distribution in thixoformed samples. Owing to the different crystal structures of -Mg and (Mg, Zn)(3)RE eutectic compounds transformed from liquid phase, their volume fraction, morphologies, and distributions affected the mechanical properties of the thixoformed samples significantly. Neither formability of semisolid slurry nor the microstructure of thixoformed sample was affected significantly by the forming load. Higher values of Vickers hardness measured in the bottom regions of the sample formed under higher forming loads were attributed to the higher residual stress caused by the excess forming energy.
关键词	Thixoforming Mg-RE alloy Semisolid forming Mechanical properties
资助者	National Natural Science Foundation of China ; Chongqing Natural Science Foundation ; Fundamental Research Funds for the Central Universities ; Venture & Innovation Support Program for Chongqing Overseas Returnees
DOI	10.1007/s00170-018-3114-3
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51605055] ; Chongqing Natural Science Foundation[cstc2016jcyjA1027] ; Fundamental Research Funds for the Central Universities[0903005203307] ; Venture & Innovation Support Program for Chongqing Overseas Returnees
WOS研究方向	Automation & Control Systems ; Engineering
WOS类目	Automation & Control Systems ; Engineering, Manufacturing
WOS记录号	WOS:000463240400053
出版者	SPRINGER LONDON LTD
引用统计	被引频次：8[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/321006/132737
专题	中国科学院金属研究所
通讯作者	Meng, Yi
作者单位	1.Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Xie, Zong-Yao,Tian, Yan,Li, Qian,et al. Effects of forming parameters on microstructure and mechanical properties of a cup-shaped Mg-8.20Gd-4.48Y-3.34Zn-0.36Zr alloy sample manufactured by thixoforming[J]. INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY,2019,101(5-8):1807-1819.
APA	Xie, Zong-Yao,Tian, Yan,Li, Qian,Zhou, Jian-Cheng,&Meng, Yi.(2019).Effects of forming parameters on microstructure and mechanical properties of a cup-shaped Mg-8.20Gd-4.48Y-3.34Zn-0.36Zr alloy sample manufactured by thixoforming.INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY,101(5-8),1807-1819.
MLA	Xie, Zong-Yao,et al."Effects of forming parameters on microstructure and mechanical properties of a cup-shaped Mg-8.20Gd-4.48Y-3.34Zn-0.36Zr alloy sample manufactured by thixoforming".INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY 101.5-8(2019):1807-1819.