通过TiMn1.25Cr0.25合金粉活化前在空气中暴露不同的时间,探讨了表面氧化层的形成对其活化性能的影响.活化测试结果表明:合金的活化难度随着合金在空气中暴露时间的延长而加大.俄歇电子能谱(AES)结果表明,在空气中暴露后的合金表面形成了一层大约6 nm～10 nm厚的表面氧化层,正是这层氧化层的形成加大了合金的活化难度.扫描电镜(SEM)结果表明合金的活化过程与合金的碎化有着密切的联系.
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