In-situ Ta-rich particle reinforced Zr-based bulk metallic glass matrix composites with tensile plasticity

Wei Guo, Junji Saida, Mi Zhao, Shulin Lü, Shusen Wu

研究成果: Article査読

15 被引用数 (Scopus)

抄録

In-situ Ta-rich particle reinforced Zr-based bulk metallic glass matrix composite has been successfully fabricated by doping Ta. The dispersion of Ta-rich particles was quite homogenous. The size and inter-particle spacing of the Ta-rich particles were very close to the plastic processing zone size. By varying the doping amount of Ta, the volume fraction of Ta-rich particles can be tailored. Furthermore, the bonding between Ta-rich particle and glassy matrix seemed to be strong for the lack of oxide or compound layer at the interfaces. With more Ta-rich particles, the composites show better mechanical properties, including higher fracture strength and larger plastic strain. The Ta-rich particles can hinder the rapid propagation of main shear band, generating multiple shear bands. Smaller value of average stress drop after yielding for the composites with more Ta doping indicates lower formation energy of shear bands, which links to the better plasticity. The deformation of Ta-rich particle itself also contributes to the plasticity and hardening behavior of the composite. The composite with 10 at.% Ta doping even shows ∼2% plastic strain under tension.

本文言語English
ページ(範囲)1002-1006
ページ数5
ジャーナルJournal of Alloys and Compounds
775
DOI
出版ステータスPublished - 2019 2 15

ASJC Scopus subject areas

  • 材料力学
  • 機械工学
  • 金属および合金
  • 材料化学

フィンガープリント

「In-situ Ta-rich particle reinforced Zr-based bulk metallic glass matrix composites with tensile plasticity」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル