Abstract
The high temperature tensile and fracture behavior of Zr50Al40Cu10 metallic glass at the temperature range in the vicinity of glass transition were investigated. Tensile tests were carried out at room temperature, 350–420 °C, and in the supercooled liquid region temperature range, respectively. Obvious plastic deformation was initiated at temperature about 80 °C lower than the glass transition temperature. The ultimate tensile strength decreases with the increase of testing temperature and the ductility increases with temperature. At temperature higher than Tg, viscous flow of Non-Newtonian fluid led to super plastic deformation behavior. The deformation process under tension was inhomogeneous, and remarkable serrations were observed on the stress-strain curve near glass transition temperature.
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Male, born in 1974, PhD, associate professor. His research interest mainly focuses on the development of metallic glasses with high glass forming ability, high temperature mechanical behavior and crystallization mechanisms of amorphous alloys.
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Gao, Xf., Ge, N., Dong, Fy. et al. Deformation and fracture of a Zr-Al-Cu metallic glass ribbon under tension near glass transition temperature. China Foundry 15, 216–221 (2018). https://doi.org/10.1007/s41230-018-8054-x
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DOI: https://doi.org/10.1007/s41230-018-8054-x