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Title: Effect of residual shear bands on serrated flow in a metallic glass
Authors: Tang, C.
Li, Y. 
Zeng, K. 
Keywords: Metallic glass
Shear band
Issue Date: Nov-2005
Source: Tang, C.,Li, Y.,Zeng, K. (2005-11). Effect of residual shear bands on serrated flow in a metallic glass. Materials Letters 59 (26) : 3325-3329. ScholarBank@NUS Repository.
Abstract: This work studies the effects of the shear bands on serrated flow of the metallic glass Zr-5Ti-17.9Cu-14.6Ni-10Al using nanoindentation technique and scanning electronic microscopy (SEM). It was observed that the nanoindentation load-displacement (P-h) curves are serrated when the nanoindents were made within the region had pre-introduced shear bands from a spherical indentation made with higher load in the specimen. The results support the earlier observation and assumption that the pre-introduced shear bands intersect with the new shear bands induced by nanoindentations, leading to less pile-up around the nanoindentation impressions. This result is discussed with possible mechanisms of the plastic deformation of the metallic glass materials. © 2005 Elsevier B.V. All rights reserved.
Source Title: Materials Letters
ISSN: 0167577X
DOI: 10.1016/j.matlet.2005.05.066
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