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Previous results on the effect of surface structures, including intrinsic microstructural
modification and extrinsic coating, on the plastic strain in tension, compression and bending were
summarized. Sample confinement and residual stresses produced by various techniques such as shot
peening and laser surface melting on the delay/retardation of shear band initiation and propagation
were discussed. In the case of surface coatings, ductile monolayer and bilayers coatings were
deposited on metallic glasses and tested, and the bilayers always exhibited better performance,
suggesting that a graded structure was always beneficial. In this overview, the theoretical basis for
multi-staged deformation of shear banding under compression and the physical origins for shearband
instability were also discussed for the benefit to develop an effective coating on metallic
glasses for plasticity improvement. 相似文献
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