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15 TiZr基金属玻璃与CM400超高强钢的拉伸、压缩与缺口疲劳行为对比[ (a) tensile and compressive engineering stress-strain curves of TiZr-MG and CM400 UHSS (b, c) stress-life (S-N) fatigue data for the notched MG and UHSS (Data are presented in terms of the reversal cycles to failure (2Nf), as a function of the applied stress amplitude (σa = (σmax - σmin) / 2) and the applied stress amplitude normalized by the ultimate tensile strength (σa / σUTS), respectively. σmax—the maximum cyclic stress, σmin—the minimum cyclic stress, b—the fatigue exponent, (d, e) surface damage features near the fatigue crack in the notched UHSS and MG |
Fig.15 Comparisons of tensile, compressive and notch fatigue behaviors between TiZr-based MG and CM400 ultra-high strength steel (UHSS)[ |
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