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纯铁发生γ→a多形性转变,设界面是非共格的,估计在1150K以及900K时a-Fe界面迁移速度。晶界扩散激活能近似为120
其中系数:
温度范围/K | A | B | C | D | E |
740<T≤860 | -269693 | 1294.373 | -2.288242 | 1.7794×10^{-3} | -5.156663×10^{-7} |
860<T≤940 | 5442896 | -24104.31 | 40.02958 | -2.953537×10^{-2} | 8.167968×10^{-6} |
940<T≤1080 | 243631.7 | -932.2832 | 1.350039 | -8.736977×10^{-4} | 2.126265×10^{-7} |
1080<T≤1240 | 587297 | -1967.562 | 2.473726 | -1.382798×10^{-3} | 2.898708×10^{-7} |
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