Mechanical properties of Zr<sub>57</sub>Nb<sub>5</sub>Al<sub>10</sub>Cu<sub>15.4</sub>Ni<sub>12.6</sub> metallic glass matrix particulate composites

DOI Web Site 被引用文献12件

書誌事項

公開日
1999-08
権利情報
  • https://www.cambridge.org/core/terms
DOI
  • 10.1557/jmr.1999.0445
公開者
Springer Science and Business Media LLC

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説明

<jats:p>To increase the toughness of a metallic glass with the nominal composition Zr<jats:sub>57</jats:sub>Nb<jats:sub>5</jats:sub>Al<jats:sub>10</jats:sub>Cu<jats:sub>15.4</jats:sub>Ni<jats:sub>12.6</jats:sub>, it was used as the matrix in particulate composites reinforced with W, WC, Ta, and SiC. The composites were tested in compression and tension experiments. Compressive strain to failure increased by more than 300% compared with the unreinforced Zr<jats:sub>57</jats:sub>Nb<jats:sub>5</jats:sub>Al<jats:sub>10</jats:sub>Cu<jats:sub>15.4</jats:sub>Ni<jats:sub>12.6</jats:sub>, and energy to break of the tensile samples increased by more than 50%. The increase in toughness came from the particles restricting shear band propagation, promoting the generation of multiple shear bands and additional fracture surface area. There was direct evidence of viscous flow of the metallic glass matrix within the confines of the shear bands.</jats:p>

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