Computer simulation of evolution of persistent slip bands in fatigued copper single crystals

摘要

＜正＞ The four evolution stages of persistent slip bands （PSBs）, namely, the veins, pass, embryos and well-developed dislocation structures of PSBs can be obtained using electron channeling contrast （ECC） technique in a scanning electron microscopy （SEM）. For the four stages, the typical dislocation structures are simulated and the stress field is calculated by the discrete dislocation static method.