Effects of extrusion and heat treatments on microstructure and mechanical properties of Mg-8Zn-1Al-0.5Cu-0.5Mn alloy

CORC > 金属研究所 > 中国科学院金属研究所

	Effects of extrusion and heat treatments on microstructure and mechanical properties of Mg-8Zn-1Al-0.5Cu-0.5Mn alloy
	Zhu, Shao-zhen ; Luo, Tian-jiao ; Zhang, Ting-an ; Liu, Yun-teng ; Yang, Yuan-sheng
刊名	TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
	2017
卷号	27 期号:1 页码:73-81
关键词	magnesium alloy extrusion microstructure texture heat treatment mechanical properties
ISSN号	1003-6326
通讯作者	Yang, YS (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China.
中文摘要	The effects of extrusion and heat treatments on the microstructure and mechanical properties of Mg-8Zn-1Al-0.5Cu-0.5Mn magnesium alloy were investigated. Bimodal microstructure is formed in this alloy when it is extruded at 230 and 260 degrees C, and complete DRX occurs at the extruding temperature of 290 degrees C. The basal texture of as-extruded alloys is reduced gradually with increasing extrusion temperature due to the larger volume fraction of recrystallized structure at higher temperatures. For the alloy extruded at 290 degrees C, four different heat treatments routes were investigated. After solution + aging treatments, the grains sizes become larger. Finer and far more densely dispersed precipitates are found in the alloy with solution + double-aging treatments compared with alloy with solution + single-aging treatment. Tensile properties are enhanced remarkably by solution + double-aging treatment with the yield strength, tensile strength and elongation being 298 MPa, 348 MPa and 18%, respectively. This is attributed to the combined effects of fine dynamically recrystallized grains and the uniformly distributed finer precipitates.
学科主题	Metallurgy & Metallurgical Engineering
收录类别	SCI
资助信息	National Basic Research Program of China [2013CB632205]; National Natural Science Foundation of China [51274184]
语种	英语
公开日期	2017-08-17
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/78368]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	Zhu, Shao-zhen,Luo, Tian-jiao,Zhang, Ting-an,et al. Effects of extrusion and heat treatments on microstructure and mechanical properties of Mg-8Zn-1Al-0.5Cu-0.5Mn alloy[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2017,27(1):73-81.
APA	Zhu, Shao-zhen,Luo, Tian-jiao,Zhang, Ting-an,Liu, Yun-teng,&Yang, Yuan-sheng.(2017).Effects of extrusion and heat treatments on microstructure and mechanical properties of Mg-8Zn-1Al-0.5Cu-0.5Mn alloy.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,27(1),73-81.
MLA	Zhu, Shao-zhen,et al."Effects of extrusion and heat treatments on microstructure and mechanical properties of Mg-8Zn-1Al-0.5Cu-0.5Mn alloy".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 27.1(2017):73-81.