A King

A Peker

AL Greer

B Chen

B Winiarski

B Wu

B Yang

B Zberg

C Fan

C-P Chuang

CA Schuh

F Szuecs

G Wu

H Bei

H Bruck

HM Chen

J Antonaglia

J Fornell

J Lu

JC Ye

JJ Kim

JJ Lewandowski

JW Qiao

JW Tian

L Berthe

L Huang

NH Tariq

Q Yang

R Nalla

SB Kim

W Braisted

WL Johnson

Y Cao

Y Fan

Y Zhang

ZF Zhang

Scientific Reports

AbstractThe Zr-based bulk metallic glasses (BMGs) are a new family of attractive materials with good glass-forming ability and excellent mechanical properties, such as high strength and good wear resistance, which make them candidates for structural and biomedical materials. Although the mechanical behavior of BMGs has been widely investigated, their deformation mechanisms are still poorly understood. In particular, their poor ductility significantly impedes their industrial application. In the present work, we show that the ductility of Zr-based BMGs with nearly zero plasticity is improved by a laser shock peening technique. Moreover, we map the distribution of laser-induced residual stresses via the micro-slot cutting method and then predict them using a three-dimensional finite-element method coupled with a confined plasma model. Reasonable agreement is achieved between the experimental and modeling results. The analyses of serrated flows reveal plentiful and useful information of the underlying deformation process. Our work provides an easy and effective way to extend the ductility of intrinsically-brittle BMGs, opening up wider applications of these materials.</jats:p

Yunfeng Cao

Xie Xie

James Antonaglia

Bartlomiej Winiarski

Gongyao Wang

Yung C. Shin

Philip J. Withers

Karin A. Dahmen

Peter K. Liaw

Crossref

Laser Shock Peening on Zr-based Bulk Metallic Glass and Its Effect on Plasticity: Experiment and Modeling

Laser Shock Peening on Zr-based Bulk Metallic Glass and Its Effect on Plasticity: Experiment and Modeling

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