高熵合金跨尺度异构强韧化及其力学性能研究进展

安子冰, 毛圣成, 张泽, 韩晓东

Strengthening-Toughening Mechanism and Mechanical Properties of Span-Scale Heterostructure High-Entropy Alloy

AN Zibing, MAO Shengcheng, ZHANG Ze, HAN Xiaodong

图6 (FeCoNi)86Al7Ti7高熵合金显微结构与室温拉伸力学性能[34]

Fig.6 Microstructure and mechanical properties of (FeCoNi)86Al7Ti7 alloy[34] (a) TEM image (b) high-resolution TEM image and corresponding FFT images (c) tensile properties of (FeCoNi)86Al7Ti7 alloy at room temperature, the alloy exhibits ductile dimpled structures without macroscopic necking (d) work-hardening rate vs true strain curves of (FeCoNi)86Al7Ti7 alloy at room temperature (MBIP—microband-induced plasticity) (e) TEM images of the sample at different tensile strains (MBs—microbands, HDDWs—high density dislocation walls)