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.
2019, Vol. 29 
