合金元素对Ti46Al8Nb合金充型性能的影响（英文）

Effects of Alloy Elements on the Mould Filling Capacity of Ti46Al8Nb Alloy

采用网状式样法制备包埋料型壳,对比研究了B、Y、Mn和Er等微合金元素对Ti-46Al-8Nb合金熔体铸造充型性能的影响。研究结果表明:添加微量元素B、Y、Mn、Er等均会对Ti-46Al-8Nb合金熔体铸造充型性能产生一定程度的改善作用。其中,0.5%Y和1%Mn改善作用十分明显,其加入使充填率分别增加了54.5%和48.5%。0.1%Er、0.5%B和1.0%B对该合金充型性能的改善作用较为一般,其加入使充填率分别增加了3.0%、4.5%和5.3%。

Embedded material shell was prepared using wax grid with 8×8 mesh.The effects of micro-alloy elements B,Y,Mn and Er on the mould filling capacity of Ti46Al8Nb melt were studied.The results show that the liquidity and mould filling property of Ti46Al8Nb melt are improved to some extent by B,Y,Mn and Er addition.0.5%Y and 1.0%Mn addition have great improvement in the mould filling capacity of the alloy,which increase the filling ratio by 54.5%and 48.5%,respectively.The effect of 0.1%Er,0.5%B and 1.0%B addition on the mould filling capacity of the alloy is not so remarkable,with the filling ratio increased by 3.0%,4.5%and 5.3%,respectively.