A series of quantitative in situ tension-compression fatigue experiments in SEM are
performed to investigate the fatigue curve of microscale single-crystal copper specimens
with a test part of 1× 1× 2 μm under various strain amplitudes. The variation of resolved
shear stress on the primary slip plane (τ B4) and the corresponding evolution of
crystallographic slips in each cycle are analyzed and in situ observed, respectively. The
variation of τ B4 during fatigue shows that,(i) the variation of τ B4 clearly includes the early …

A series of quantitative in situ tension-compression fatigue experiments in SEM are
performed to investigate the fatigue curve of microscale single-crystal copper specimens
with a test part of 1× 1× 2 μm under various strain amplitudes. The variation of resolved
shear stress on the primary slip plane (τB4) and the corresponding evolution of
crystallographic slips in each cycle are analyzed and in situ observed, respectively. The
variation of τB4 during fatigue shows that, i) the variation of τB4 clearly includes the early …