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偏析干预下体心立方金属再结晶织构竞争
常松涛, 张芳, 沙玉辉, 左良

Recrystallization Texture Competition Mediated by Segregation Element in Body-Centered Cubic Metals
CHANG Songtao, ZHANG Fang, SHA Yuhui, ZUO Liang
表1 Fe-3%Si合金再结晶行为模拟用参数[23,26,30~35]
Table 1 List of parameters for simulating recrystallization behavior of Fe-3%Si alloy[23,26,30-35]
ParameterValueUnitRef.
Temperature, T1123K
Shear modulus, G87.88 - 0.02467TGPa[30]
Boltzmann's constant, kb1.38 × 10-23J·K-1
Burgers vector modulus, b0.25 × 10-9m[30]
Mobility of free grain boundary, Mgbfree9×10-8exp(-1.99×10-19kbT)m4·J-1·s-1[31]
Mobility of free sub-grain boundary, Msubfree0.2Mgbfreem4·J-1·s-1[23]
Grain boundary width, δgb1 × 10-9m[26]
Sub-grain boundary width, δsubδgbmThis work
Number of atoms per unit volume, NV8.45 × 1028m-3
Binding energy of Sb to sub-grain boundary, Esubseg-0.43eV[32,33]
Binding energy of Sb to grain boundary, Egbseg-0.67eV[34]
Sb bulk diffusion coefficient, DB1.3×10-5exp(-3.37×10-19kbT)m2·s-1[35]
Sb cross grain boundary diffusion coefficient, DgbC2DBm2·s-1[26]
Sb cross sub-grain boundary diffusion coefficient, DsubCDgbCm2·s-1This work