Absence of crystallization during cylindrical indentation of a Zr-based metallic glass

Influence of Stress-strain on the Microstructural Change in the Metallic Glass and Metallic Glass Matrix Composite

“…Further evidence of nanocrystallization under multiaxial stress conditions can be found in the deformed Nibased MGMC sample. The evolution of pressure beneath the indenter for spherical indenters has shown that nanoindentation clearly produces an order of magnitude larger pressure beneath the spherical indenter (160 GPa) than in the surrounding area (Kramer et al, 2005). The hydrostatic stress level is markedly elevated in the vicinity of a sharp corner of a whisker and can reach up to six times the overall yield strength (Christman et al, 1989).…”

Revelation of the effect of structural heterogeneity on microplasticity in bulk metallic-glasses

“…To avoid the shear-band catastrophic propagation, a variety of nanoindentation methods, which are intended to impose constrained deformation fields on BMGs, have been used to probe the shear-banding behaviors across a wide range of length scales. [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23] For instance, a bonded-interface technique combined with nanoindentation was proposed to reveal the subsurface shear-banding morphologies in Vickers nanoindentation. 15,24 Such a novel indentation method has been proven useful for the study of the constitutive behavior of shear bands under a multiaxial stress state.…”