Authors: S B Gao Y P Gao P F Yu S D Feng G Li P K Liaw R P Liu
Publish Date: 2014/08/07
Volume: 46, Issue: 6, Pages: 2390-2394
Abstract
For actual structural engineering applications of materials many kinds of extreme conditions like highspeed dynamic loading low temperature high pressure other than normal ones should be appreciated In this paper the ascasted and highpressuretreated ZrTiCuNiAl noncrystalline alloys under 0 to 4 GPa at room temperature were investigated by Xray diffraction differential scanning calorimetry and nanoindentation We find that the nonhydrostatic high pressure does not result in the crystallization but can significantly improve the mechanical performance in particular the plasticity of the noncrystalline alloys The investigation concerning the effect of the high pressure treatment on the mechanical behavior of the Zrbased alloy is potentially useful for suggesting possible external means to control the microstructure and mechanical performance of the amorphous materialsThe research was supported by the National Science Foundation of China Grant No 51121061/51171163 Peter K Liaw would like to acknowledge the US National Science Foundation DMR0909037 CMMI0900271 and CMMI1100080 and the US Army Research Office project W911NF1310438 with the program manager S N Mathaudhu and the DOE Office of Fossil Energy National Energy Technology Laboratory DEFE0008855 and DEFE0011194 with Mr V Cedro and Dr S Markovich as program managers respectively
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