时效态Fe-Mn-Al-C钢的性能和变形机制

王萍, 郭爱民, 侯清宇, 郭云侠, 黄贞益, 光剑锋

Properties and Deformation Mechanism of Aged Fe-Mn-Al-C Steel

WANG Ping, GUO Aimin, HOU Qingyu, GUO Yunxia, HUANG Zhenyi, GUANG Jianfeng

表2 实验钢拉伸变形后的KAM分布、平均KAM值以及位错密度

Table 2 Distribution of KAM, average KAMvalue and dislocation density of experimental steel after tensile deformation

Aging temperature KAM distribution Average Dislocation /℃ 0°~1° 1°~2° 2°~3° 3°~4° 4°~5° KAM/° density/m-2 450 0.144 0.305 0.583 0.627 0.309 0.247 6.12×1015 500 0.010 0.140 0.611 0.735 0.465 0.392 1.95×1016 550 0.021 0.483 0.601 0.458 0.129 0.212 5.43×1015