Unusual plasticization for structural relaxed bulk metallic glass

研究成果: Article査読

24 被引用数 (Scopus)


Unusual plasticization for structural relaxed CuZr-based bulk metallic glass (BMG) has been found. Even though thermal-annealing usually leads to unfavorable relaxation-induced embrittlement for most BMGs, this BMG exhibits an improved plasticity after annealing. This behavior is attributed to an evolution of nanolevel heterogeneity for this unstable or heterogeneous BMG. Less initiation of shear bands by structural relaxation and evolution of heterogeneity from thermal-annealing are considered to contribute cooperatively to the plasticity of relaxed glass. This study provides a new viewpoint to improve the mechanical properties of BMGs upon relaxation, in which a microstructural heterogeneity is distributed among a glassy matrix. This finding may also expand the applications of BMGs as promising structural materials because of unusual resistances to annealing-embrittlement.

ジャーナルMaterials Science and Engineering A
出版ステータスPublished - 2017 6月 24

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学


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