Shear-banding Induced Indentation Size Effect in Metallic Glasses

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

5 Scopus Citations
View graph of relations

Author(s)

  • B. A. Sun
  • L. Z. Zhao
  • W. H. Wang
  • M. X. Pan

Detail(s)

Original languageEnglish
Article number28523
Journal / PublicationScientific Reports
Volume6
Publication statusPublished - 21 Jun 2016

Link(s)

Abstract

Shear-banding is commonly regarded as the “plasticity carrier” of metallic glasses (MGs), which usually causes severe strain localization and catastrophic failure if unhindered. However, through the use of the high-throughput dynamic nanoindentation technique, here we reveal that nano-scale shear-banding in different MGs evolves from a “distributed” fashion to a “localized” mode when the resultant plastic flow extends over a critical length scale. Consequently, a pronounced indentation size effect arises from the distributed shear-banding but vanishes when shear-banding becomes localized. Based on the critical length scales obtained for a variety of MGs, we unveil an intrinsic interplay between elasticity and fragility that governs the nanoscale plasticity transition in MGs. Our current findings provide a quantitative insight into the indentation size effect and transition mechanisms of nano-scale plasticity in MGs.

Research Area(s)

Citation Format(s)

Shear-banding Induced Indentation Size Effect in Metallic Glasses. / Lu, Y. M.; Sun, B. A.; Zhao, L. Z.; Wang, W. H.; Pan, M. X.; Liu, C. T.; Yang, Y.

In: Scientific Reports, Vol. 6, 28523, 21.06.2016.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

Download Statistics

No data available