显微带细化组织和两相组织对低<strong>Cr</strong>合金钢高温断裂行为的影响

显微带细化组织和两相组织对低Cr合金钢高温断裂行为的影响

程磊(

),余伟,蔡庆伍

Influence of Microbands Refined Microstructure and Two Phase Microstructure on High Temperature Fracture Behaviors of a Low Cr Alloy Steel

CHENG Lei(

),YU Wei,CAI Qingwu

图5. 距拉伸断口1 mm处的组织特征，左侧(a, c, e, g)和右侧(b, d, f, h)初始分别为1#组织和2#组织，相应拉伸条件在图右上角标出

Fig.5. Deformed characteristics of the microbands refined microstructure (a, c, e, g) and two phase microstructure (b, d, f, h) after tensioning at different conditions, and the scanning regions are 1 mm from the fracture margins