Improved mechanical proprieties of“magnesium based composites”with titaniume-aluminum hybrids  

作　　者：Muhammad Rashad Fusheng Pan Muhammad Asif Jia She Ahsan Ullah 

机构地区：[1]College of Materials Science and Engineering,Chongqing University,Chongqing 400044,China [2]National Engineering Research Center for Magnesium Alloys,Chongqing University,Chongqing 400044,China [3]Chongqing Academy of Science and Technology,Chongqing,Chongqing 401123,China [4]School of Materials Science and Engineering,Dalian University of Technology,Dalian 116024,China [5]Department of Physics,Quaid-i-Azam University,Islamabad 46000,Pakistan

出　　处：《Journal of Magnesium and Alloys》2015年第1期1-9,共9页镁合金学报（英文）

基　　金：The present work was supported by the National Natural Science Funds of China(No.50725413);the Ministry of Science and Technology of China(MOST)(No.2010DFR50010 and 2011FU125Z07);Chongqing Science and Technology Commission(CSTC2013JCYJC60001).

摘　　要：In this study,the effect of micron-sized titanium and aluminum addition on the microstructural,mechanical and work-hardening behavior of pure Mg is investigated.Pure Mg reinforced with 10%Ti and 10%Ti-1%Al particulates were synthesized through semi-powder metallurgy route followed by hot extrusion.Semi-powder metallurgy appears to be promising approach for the synthesis of Mg based composite,as it is free of ball milling.Tensile results indicate that the direct addition of micron-sized 10wt.%titanium particulates to pure Mg,caused an improvement in elastic modulus,0.2%yield strength,ultimate tensile strength,and failure strain(+72%;+41%;+29%;and+79%respectively).The addition of micron-sized 10wt.%titanium particles along with 1.0wt.%Al particles to pure Mg,resulted in an enhancement in elastic modulus,0.2%yield strength,ultimate tensile strength,and failure strain(+74%;+56%;+45%;and+241%respectively).Besides tensile test,Vickers hardness and work-hardening behavior of prepared composites were also examined.Impressive failure strain of Mg-10Ti-1Al composite can be attributed to the better compatibility of Ti particulates with Mg due to presence of alloying element Al.

关 键 词：Mechanical properties MICROSTRUCTURE Powder metallurgy method Metal matrix composite 

分 类 号：TG1[金属学及工艺—金属学]