Anomalous temperature dependence of crystalline-to-amorphous transformation induced by high-pressure torsion in Zr50(Cu,Al)50

Fanqiang Meng, Koichi Tsuchiya, Qingsong Mei, Baozhen Jiang, Yoshihiko Yokoyama

研究成果: Article査読

4 被引用数 (Scopus)

抄録

Martensite phases of Zr50Cu50 and Zr 50Cu44Al6 were deformed by high-pressure torsion (HPT) at different temperatures ranging from 253 to 473 K. Microstructural observations revealed that the crystalline-to-amorphous transformation induced by HPT showed remarkable temperature dependence: an increase in deformation temperature up to 473K significantly increased the fraction of the amorphous structure. This result suggests that the lattice instability near martensitic transformation temperature promotes crystalline-to-amorphous transformation, which is coherent to the generalized Lindemann criterion of defect-induced amorphization.

本文言語English
ページ(範囲)1224-1227
ページ数4
ジャーナルMaterials Transactions
54
7
DOI
出版ステータスPublished - 2013

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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