大变形管线钢中F/B多相组织应变硬化行为和应力比研究*
汤忖江, 尚成嘉, 关海龙, 王学敏

Strain Hardening Behavior and Stress Ratio of High Deformability Pipeline Steel with Ferrite/Bainite Multi-phase Microstructure
TANG Cunjiang, SHANG Chengjia, GUAN Hailong, WANG Xuemin
表2 实验钢中贝氏体体积分数和纵向力学性能
Table 2 Volume fraction of bainite and longitudinal mechanical properties of experimental steels
Experimental
steel
Volume fraction of
Bainite/%
Engineering value
Rt0.5/MPa Rm/MPa UEL/% Agt/% TEL/%
No.1 0 513 668 11.8 12.2 -
No.2 27.9 520 774 10.8 11.5 31.7
No.3 47.0 560 848 9.0 9.6 28.9
No.4 65.9 638 914 6.1 6.7 25.7
No.5 100 914 1031 1.4 1.6 -