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| Effect of B addition on SPS properties of atomized Ti-48Al-2Cr-2Nb alloy powder |
| ZHANG Jian-lin |
| College of Mechanical Engineering, Taiyuan University of Technology, Taiyuan 030024，China |
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Abstract The effects of various B additions on the spark plasma sintering (SPS) properties of atomized Ti-48Al-2Cr-2Nb alloy powder were studied. The results show that the rapid densification temperature of Ti-48Al-2Cr-2Nb alloy is obviously reduced by adding B element. After sintering, the alloy added with B element has obvious densification, and the dendritic structure are all disappeared. At the same time, a clearer phase interface is formed, and the grains are obviously refined. The alloy added with 0.2%B reaches the highest mechanical properties after sintering, and the tensile strength, yield strength and elongation are 524 MPa, 488 MPa and 9.62%, respectively.
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Received: 13 February 2018
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2019, Vol. 29 
