کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1585545 | 1514916 | 2006 | 6 صفحه PDF | دانلود رایگان |
Superplastic gas pressure formability of the Zr65Al10Ni10Cu15 bulk metallic glass (BMG) sheets was examined. Fabrication of large surface BMG sheets with fully amorphous structure and development of a special gas-blow-forming setup where oxidation and crystallization could be avoided during sample heating and forming were essential for this purpose. The sheets were produced by squeeze mold casting. The optimum pressure–time curve for formation of a hemisphere with a diameter of 22 mm was determined based on the analysis by finite element method and the experimental data obtained from tensile tests at 696 K for different strain rates. Gas pressure forming could be completed within 120 s as predicted by the FEM without introducing crystallization in any part of the final product.
Journal: Materials Science and Engineering: A - Volume 428, Issues 1–2, 25 July 2006, Pages 205–210