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1 不同应变下的材料参数

Table 1 Material parameters under different strains

Strain α / mm-2·N-1 n Q / J·mol-1 lnA / s-1 Strain α / mm-2·N-1 n Q / J·mol-1 lnA / s-1 0.05 0.004051 6.63 415298.82 38.60 0.45 0.004617 4.38 355015.50 32.12 0.1 0.004133 5.67 398082.60 36.30 0.5 0.004762 4.28 350333.66 31.68 0.15 0.004101 5.29 390787.99 35.56 0.55 0.004888 4.20 344814.77 31.17 0.2 0.004133 5.02 384206.66 34.90 0.6 0.005032 4.13 342338.44 30.92 0.25 0.004195 4.86 381160.28 34.59 0.65 0.005155 4.07 336804.98 30.38 0.3 0.004269 4.74 377405.98 34.23 0.7 0.005266 4.01 331763.12 29.89 0.35 0.004359 4.61 368306.20 33.37 0.75 0.005326 4.02 336002.20 30.28 0.4 0.004491 4.48 361460.79 32.71 0.8 0.005370 4.07 339840.92 30.65