Effect of backward extrusion on microstructure and mechanical properties of Mg-Gd based alloy

	Effect of backward extrusion on microstructure and mechanical properties of Mg-Gd based alloy
	Peng QM ; Dong HW ; Tian YJ ; Zhang HJ
刊名	materials science and engineering a-structural materials properties microstructure and processing
	2012
卷号	532 页码:443-448
关键词	PRECIPITATION MAGNESIUM ZN BEHAVIOR
ISSN号	0921-5093
通讯作者	peng qm
中文摘要	backward extrusion technology has been performed to improve the mechanical properties of mg-gd based alloy. microstructure, mechanical properties and strengthening mechanism of backward extruded mg-gd based alloy were investigated. the average grain size of backward extruded alloy was about 5 mu m. the coarse eutectic compounds formed during the solidification were dispersed into polygon-shaped precipitates and were distributed along the extruded direction. the alloy exhibited obviously age hardening response at 225 degrees c. both backward extruded state and aged state samples show high thermal stability in the range from room temperature to 200 degrees c. the ductility of backward extruded alloy at low temperatures was improved greatly compared with the as-cast state sample. the enhanced mechanical properties and thermal stability were mainly attributed to the grain refinement, the dispersed precipitates and fine meta-stable precipitates. it was established that backward extrusion technology was an effective method to manufacture high performance mg-re based alloys containing high re content. (c) 2011 elsevier b.v. all rights reserved.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000301160100060
公开日期	2013-06-09
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/48381]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Peng QM,Dong HW,Tian YJ,et al. Effect of backward extrusion on microstructure and mechanical properties of Mg-Gd based alloy[J]. materials science and engineering a-structural materials properties microstructure and processing,2012,532:443-448.
APA	Peng QM,Dong HW,Tian YJ,&Zhang HJ.(2012).Effect of backward extrusion on microstructure and mechanical properties of Mg-Gd based alloy.materials science and engineering a-structural materials properties microstructure and processing,532,443-448.
MLA	Peng QM,et al."Effect of backward extrusion on microstructure and mechanical properties of Mg-Gd based alloy".materials science and engineering a-structural materials properties microstructure and processing 532(2012):443-448.