Extrusion properties of a Zr-based bulk metallic glass

摘要

The extrusion behavior of Zr_(41.2)Ti_(13.8)Cu_(12.5)Ni_(10)Be_(22.5) metallic glasses in the supercooled liquid region was investigated. Good extrusion formability was observed under low strain rates at temperatures higher than 395 ℃. The metallic glasses were fully extruded without crystallization and failure within the range of T = 395-415 ℃ under strain rates from 5 × 10~(-3) s~(-1) to 5 × 10~(-2) s~(-1), and the deformation behavior of the metallic glasses during the extrusion was found to be in a Newtonian viscous flow mode by a strain rate sensitivity of 1.0.