Formation mechanism of in situ Al(3)Ti in Al matrix during hot pressing and subsequent friction stir processing

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	Formation mechanism of in situ Al(3)Ti in Al matrix during hot pressing and subsequent friction stir processing
	Q. Zhang; B. L. Xiao; D. Wang; Z. Y. Ma
	2011
发表期刊	Materials Chemistry and Physics
ISSN	0254-0584
卷号	130 期号:3 页码:1109-1117
摘要	In situ Al(3)Ti/Al composites were fabricated by a combination of vacuum hot pressing (VHP) and friction stir processing (FSP). The formation mechanism of the Al(3)Ti and the effect of VHP and FSP parameters on the resultant microstructure and mechanical properties were investigated. The Al(3)Ti formed due to the reactive diffusion between Al and Ti during VHP, and the number of Al(3)Ti particles increased with increasing the temperature and holding time of the VHP. FSP not only induced the Al-Ti reaction, but also resulted in significant refining of the Al(3)Ti, thereby creating a homogeneous distribution of Al(3)Ti particles in the Al matrix. These microstructural changes led to significant improvement in the tensile properties of the in situ Al(3)Ti/Al composite. However, the change trends of the tensile properties of the FSP samples were dependent on the extent of the Al-Ti reaction during VHP. (C) 2011 Elsevier B.V. All rights reserved.
部门归属	[zhang, q.; xiao, b. l.; wang, d.; ma, z. y.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;ma, zy (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china;zyma@imr.ac.cn
关键词	Composite Materials Intermetallic Compounds Powder Metallurgy Friction Stir Processing Material Flow Composites Aluminum Alloy Microstructure Visualization Nanocomposite Deformation Behavior Welds
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/30899
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Q. Zhang,B. L. Xiao,D. Wang,et al. Formation mechanism of in situ Al(3)Ti in Al matrix during hot pressing and subsequent friction stir processing[J]. Materials Chemistry and Physics,2011,130(3):1109-1117.
APA	Q. Zhang,B. L. Xiao,D. Wang,&Z. Y. Ma.(2011).Formation mechanism of in situ Al(3)Ti in Al matrix during hot pressing and subsequent friction stir processing.Materials Chemistry and Physics,130(3),1109-1117.
MLA	Q. Zhang,et al."Formation mechanism of in situ Al(3)Ti in Al matrix during hot pressing and subsequent friction stir processing".Materials Chemistry and Physics 130.3(2011):1109-1117.