改善镍基合金铸造性能的研究

Study on the Improvement in Casting Properties of Ni Base Alloy

研究了稀土元素用于改善镍基合金铸造性能的可能性和效果。试验结果表明，在镍基合金中加入适量的稀土，可提高合金的流动性，降低其热裂倾向，对合金的线收缩率影响不大。

The possibility and effectiveness for improving the casting properties of RE treated Ni base alloy are studied. Experimental results show that flowability and hot crack forming tendency of the alloy were improved, but linear contraction is not clearly affected.