珠光体-奥氏体相变中扩散通道的相场法研究
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李赛, 杨泽南, 张弛, 杨志刚
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Phase Field Study of the Diffusional Paths in Pearlite-Austenite Transformation
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LI Sai, YANG Zenan, ZHANG Chi, YANG Zhigang
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表2 本模拟涉及物理量及其取值[26,36]
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Table 2 Materials data used in the phase-field calculations[26,36]
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Physical quantity | Item | Value | Unit |
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Interface energy | γ/α, γ/θ, α/θ | 1.5 × 10-5 | J·cm-2 | Interface mobility | γ/α, γ/θ | 1.5 | cm4·J-1·s-1 | | α/θ | 1 | cm4·J-1·s-1 | Frequency factor D0 | C in γ | 0.1996 | cm2·s-1 | | C in α | 0.419 | cm2·s-1 | C in interface | 0.1996 | cm2·s-1 | Mn in γ | 0.1501 | cm2·s-1 | Mn in α | 6.7119 × 103 | cm2·s-1 | Mn in interface | 0.1501 | cm2·s-1 | Activity energy Q | C in γ | 1.390 × 105 | J·mol-1 | | C in α | 1.086 × 105 | J·mol-1 | C in interface | 0.97 × 105 | J·mol-1 | Mn in γ | 2.602 × 105 | J·mol-1 | Mn in α | 3.062 × 105 | J·mol-1 | Mn in interface | 1.55 × 105 | J·mol-1 | Thickness of the diffusional interface | | 0.5 | nm |
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