汽车用先进高强度冷轧双相钢的显微组织调控和强韧化机理

储双杰, 毛博, 胡广魁

Microstructure Control and Strengthening Mechanism of High Strength Cold Rolled Dual Phase Steels for Automobile Applications

CHU Shuangjie, MAO Bo, HU Guangkui

图10 双相钢的裂纹产生和失效机理[87]

Fig.10 Fracture initiation mechanism in dual phase steels[87] (TD—transverse direction) (a) 3D perspective views of microvoids at different strain levels (b) a typical microvoid showing cracks initiates between two adjacent martensite grains (c, d) EBSD analyses of a microvoid initiated from martensite cracking