TiAl基合金具有密度低、熔点高、抗蠕变性能优良、比强度和比刚度高等优点,很有希望作为新型高温结构材料而得到广泛应用.然而由于其高温抗氧化性能较低,应用受到一定限制.从合金化技术、表面改性技术和粉末冶金技术3方面讨论了改善TiAl基合金高温抗氧化性能的有效措施.
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