Tensile deformation and fracture behavior of AZ91D magnesium alloy and TiC/Mg magnesium matrix composites synthesized by in situ reactive infiltration technique

IMR OpenIR

	Tensile deformation and fracture behavior of AZ91D magnesium alloy and TiC/Mg magnesium matrix composites synthesized by in situ reactive infiltration technique
	Chen, LQ ; Guo, JH ; Wang, JJ ; Xu, YB ; Bi, J
通讯作者	Chen, LQ(lqchen@imr.ac.cn)
	2006
发表期刊	RARE METAL MATERIALS AND ENGINEERING
ISSN	1002-185X
卷号	35 期号:1 页码:29-33
摘要	A newly developed cost-effective processing route, in situ reactive infiltration technique, was utilized to fabricate 47.5vol.%TiC/AZ91D magnesium matrix composites. A comparative study was made on the tensile deformation behavior at room and elevated temperatures for the as synthesized composites and the matrix alloy magnesium AZ91D and their fracture characteristics were also analyzed as well. The results show that the TiC/Mg composites fabricated by in situ reactive infiltration process possess excellent high-temperature mechanical properties. The ultimate tensile strength of the matrix magnesium alloy AZ91D at 723 K and a strain rate of 0.001 s(-1) is 41.1 MPa, while that of TiC/Mg composites at the same deformation conditions increases by 120% and reaches 91.1 MPa. At room temperature, the ultimate tensile strength of the composites increases only by 23.4% as compared with the AZ91D alloy. The SEM observation of the morphologies for the fractured surfaces reveals that the fracture mode differs from one another in that the composites are of brittle characteristic at room and elevated temperatures due to its limited failure strain, whereas the fracture mode of the magnesium alloy has a transition from brittleness at room temperature towards ductileness at elevated temperature.
关键词	magnesium matrix composites TiC in situ reactive infiltration process tensile deformation fracture behavior
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000235118100008
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
引用统计	被引频次：4[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/321006/88458
专题	中国科学院金属研究所
通讯作者	Chen, LQ
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Northeastern Univ, Shenyang 110004, Peoples R China
推荐引用方式 GB/T 7714	Chen, LQ,Guo, JH,Wang, JJ,et al. Tensile deformation and fracture behavior of AZ91D magnesium alloy and TiC/Mg magnesium matrix composites synthesized by in situ reactive infiltration technique[J]. RARE METAL MATERIALS AND ENGINEERING,2006,35(1):29-33.
APA	Chen, LQ,Guo, JH,Wang, JJ,Xu, YB,&Bi, J.(2006).Tensile deformation and fracture behavior of AZ91D magnesium alloy and TiC/Mg magnesium matrix composites synthesized by in situ reactive infiltration technique.RARE METAL MATERIALS AND ENGINEERING,35(1),29-33.
MLA	Chen, LQ,et al."Tensile deformation and fracture behavior of AZ91D magnesium alloy and TiC/Mg magnesium matrix composites synthesized by in situ reactive infiltration technique".RARE METAL MATERIALS AND ENGINEERING 35.1(2006):29-33.