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| Effect on Brittle of Titanium Aluminum Compound by Doping Cr, Mo, W Additions |
| WEI Qiang1，WANG Shuo2 |
（1. Dandong City Center for Disease Control and Prevention，Dandong 118002,Liaoning，China
2.Sinopec PSTC East China Pipeline Design & Research Institute, Xuzhou 221008,Jiangsu，China） |
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Abstract The structural properties, formation enthalpies and the mechanical properties of doped Ti3Al alloys are studied by using embedded-atom method. The result showed that calculated both formation enthalpies and volumes of Ti75-xAl25-yMx+y (M=Cr, Mo and W) decrease with increasing the additional concentrations. The effects of mechanical properties are different by doping different elements, and the results consist with the experiments.
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Received: 15 January 2014
Published: 28 April 2014
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2014, Vol. 21 
