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《Journal of Shenyang Aerospace University》 2013-01
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Research on evolution of Ti_P/Al composites prepared by hot-press sintered microstructure

ZHANG Li,WU Bao-lin,CUI Xian-wei(1.College of Material Science and Engineering,Shenyang Aerospace University,Shenyang 110136;2.Liaoning Key Laboratory of Light Alloy and Processing Technology,Shenyang 110136)  
In an attempt to improve the weak-bonding interface of metallic matrixes and conventional ceramic reinforcing agents,a way to prepare Al-based composites reinforced by using Ti particles was explored.Firstly,Al and Ti powders with nominal mass ratio of 77:23 were mixed fully and heat-sintered under the condition of vacuum and some pressure.Then microstructural evolution of the resultant products during the sintering process was characterized.It shows that a kind of laminated reinforcements composed of intermetallic Al3Ti,TiAl and metallic Ti can be formed under appropriate sintering conditions,and the reinforcements have good bonding with Al matrix.The optimum sintering temperature for preparing such high-performance Al-based composites is from 600℃ to 630℃.
【CateGory Index】: TF124.5
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