金属玻璃的剪切带变形与断裂机制研究进展

屈瑞涛, 王晓地, 吴少杰, 张哲峰

Research Progress in Shear Banding Deformation and Fracture Mechanisms of Metallic Glasses

QU Ruitao, WANG Xiaodi, WU Shaojie, ZHANG Zhefeng

图6 剪切带在压缩下的开裂机制示意图[58]

Fig.6 Illustration of the cracking mechanisms of shear band under compression[58] (a-d) evolutions of crack initiation, growth and linkage inside the shear band and shear affected zone during plastic shearing, with the cracking dominated by creation and coalescence of excess free volume (e) crack initiation at local non-planar sites of shear band due to the shearing induced tensile stress component (f) crack initiation at the intersection point of the major shear band and secondary shear band