钇对 Ni_3Al 基合金 IC6 微观组织和高温抗氧化性能的影响

Effect of Yttrium on the Microstructure and High Temperature Oxidation Resistance of Ni_3Al Base Alloy IC6

利用扫描电镜研究了不同含量的稀土元素钇对定向凝固Ｎｉ３Ａｌ基合金ＩＣ６微观组织的影响，并测试了不同钇含量合金的１１００℃抗氧化性能，结果表明，加入适量的钇，能显著提高ＩＣ６合金的高温抗氧化性能。

The effect of different amounts of rare earth element yttrium on the microstructure of the directionally solidified Ni_3Al base alloy IC6 was studied with scanning electron microscopy(SEM)The oxidation resistance of the alloy with different amounts of yttrium was tested at 1100℃,the results showed that the oxidation resistance of alloy IC6 was substantially improved by adding proper amounts of yttrium