TiC/AZ91D composites fabricated by in situ reactive infiltration process and its tensile deformation

IMR OpenIR

	TiC/AZ91D composites fabricated by in situ reactive infiltration process and its tensile deformation
	Wang Ji-jie ; Guo Jin-hua ; Chen Li-qing
通讯作者	Chen Li-qing(lqchen@imr.ac.cn)
	2006-08-01
发表期刊	TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN	1003-6326
卷号	16 期号:4 页码:892-896
摘要	An innovative processing route was adopted to fabricate 42.1%(volume fraction) TiC/AZ91D magnesium matrix composites. The reinforcement TiC was in situ synthesized from elemental powders of Ti and C and the matrix magnesium alloy AZ91D pressurelessly infiltrated into the preform of Ti and C. A comparative tensile deformation tests were conducted on the as-synthesized TiC/AZ91D composites and magnesium alloy AZ91D. The true strain-stress curves were fitted by Hollomon relation and their failure mechanisms were finally analyzed. The results show that the in situ formed TiC can increase the tensile strength, and is especially effective at elevated temperatures. Theoretical calculation of the strain hardening exponent (n) for TiC/AZ91D composites indicates that the n value ranges from 0.71 to 0.82 when tensile deformation was carried out at 423-723 K and shows fracture with brittle characteristic. However, the n value of 0.11-0.32 obtained for the matrix alloy AZ91D shows typical ductile features at elevated temperatures.
关键词	magnesium-matrix composites TiC/AZ91D in situ reactive infiltration tensile deformation strain hardening fracture mechanism
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000240509600027
出版者	ALLERTON PRESS INC
引用统计	被引频次：29[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/321006/86033
专题	中国科学院金属研究所
通讯作者	Chen Li-qing
作者单位	1.Chinese Acad Sci, Met Res Inst, Shenyang 110016, Peoples R China 2.Shenyang nst Aeronayt Ind Engn, Dept Mat Engn, Shenyang 110034, Peoples R China 3.Northeastern Univ, Sch Met & Mat, Shenyang 110004, Peoples R China 4.Chinese Acad Sci, Met Res Inst, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wang Ji-jie,Guo Jin-hua,Chen Li-qing. TiC/AZ91D composites fabricated by in situ reactive infiltration process and its tensile deformation[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2006,16(4):892-896.
APA	Wang Ji-jie,Guo Jin-hua,&Chen Li-qing.(2006).TiC/AZ91D composites fabricated by in situ reactive infiltration process and its tensile deformation.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,16(4),892-896.
MLA	Wang Ji-jie,et al."TiC/AZ91D composites fabricated by in situ reactive infiltration process and its tensile deformation".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 16.4(2006):892-896.