多边形铁素体/针状铁素体双相管线钢的应变硬化行为

荀雨, 严伟, 史显波, 章传国, 单以银, 杨柯, 任毅

Strain Hardening Behavior of Polygonal Ferrite and Acicular Ferrite Dual-phase Pipeline Steel

XUN Yu, YAN Wei, SHI Xianbo, ZHANG Chuanguo, SHAN Yiyin, YANG Ke, REN Yi

图4 1#、2#和4#钢的EBSD分析结果

Fig.4 inverse pole figure (IPF) for 1# (a)、2# (b) and 4# (c) sample; Misorientation distribution maps of grain boundary for 1# (d)、2# (e) and 4# (f) sample; geometrically necessary dislocations (GND) densities for 1# (g)、2# (h) and 4# (i) sample; (j) the average grain size of 1#、2# and 4# sample; (k) the frequency of LAGBs and HAGBs at 1#、2# and 4# sample; (l) the frequency of GND at 1#、2# and 4# sample