用压缩实验的方法研究了热等静压处理后DS NiAl-28Cr-5.5Mo-0.5Hf合金的高温变形行为.发现流变应力随温度升高或应变速率减小而降低,服从幂指数规律,并求出了合金的应力指数n和变形激活能Q.运用HREM从微观方面分析了合金中存在的各种界面以及界面与力学性能的关系.
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