一种低密度钢等温压缩时组织的演化和动态再结晶

孙建, 李景辉, 黄贞益, 章小峰, 王东生, 刘述庆

Microstructure Evolution and Dynamic Recrystallization of a Low Density Steel during Isothermal Compression

SUN Jian, LI Jinghui, HUANG Zhenyi, ZHANG Xiaofeng, WANG Dongsheng, LIU Shuqing

表3 材料参数α、n、Q和lnA的第6个多项式系数

Table 3 The 6th polynomial coefficients of material parameters α, n, Q and lnA

α / mm-2·N-1 n Q / J·mol-1 lnA / s-1 X0 = 0.004 Y0 = 8.357 Z0 = 453241.858 U0 = 43.528 X1 = 0.005 Y1 = -46.341 Z1 = -1.064 × 106 U1 = -139.265 X2 = -0.044 Y2 = 271.137 Z2 = 7.351 × 106 U2 = 966.741 X3 = 0.179 Y3 = -862.279 Z3 = -2.706 × 107 U3 = -3501.208 X4 = -0.335 Y4 = 1479.257 Z4 = 5.110 × 107 U4 = 6550.284 X5 = 0.304 Y5 = -1295.175 Z5 = -4.800 × 107 U5 = -6112.333 X6 = -0.110 Y6 = 454.902 Z6 = 1.787 × 107 U6 = 2259.787