Malleable hypoeutectic zr-ni-cu-al bulk glassy alloys with tensile plastic elongation at room temperature

Y. Yokoyama, K. Fujita, A. R. Yavari, A. Inoue

研究成果: Article査読

126 被引用数 (Scopus)

抄録

A new bulk glassy alloy (BGA) showing macroscopic tensile plastic elongation at room temperature has been developed in the hypoeutectic Zr-Ni-Cu-Al alloy system. The hypoeutectic Zr-Ni-Cu-Al BGA shows a high Poisson's ratio, a low Young's modulus, and is highly malleable in compression. It exhibits a Poisson's ratio of 0.39, a Young's modulus of 73 GPa, and a distinct tensile plastic elongation of about 1.7% at room temperature with necking due to the operation of many shear bands. The tensile plastic deformability seems to originate from modifications of the glass structure with increasing the number of Zr-Zr atomic pairs in the hypoeutectic composition.

本文言語English
ページ(範囲)322-334
ページ数13
ジャーナルPhilosophical Magazine Letters
89
5
DOI
出版ステータスPublished - 2009 5月

ASJC Scopus subject areas

  • 凝縮系物理学

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