Improved plasticity of a ZrCuAlAg bulk metallic glass by controlling the casting condition
Source abstract
Abstract
A series of Zr50.75Cu35.75Al8.5Ag5 bulk metallic glasses (BMGs) were prepared by controlling the cooling rate and over-heating temperature. The plastic deformation behavior of the BMGs was examined. The plasticity was enhanced when the BMG was prepared at a high cooling rate and low over-heating temperature. The plasticity of the Zr-based BMGs prepared under different casting conditions was discussed based on the amount of free volume. The structural heterogeneity of the BMGs prepared with different over-heating temperatures was examined using a high-resolution transmission electron microscope and mapped by using an energy dispersive x-ray spectroscope. The results showed that a low over-heating temperature could increase the degree of heterogeneity, but an extremely low over-heating temperature could lead to nanocrystallization. The difference in the heterogeneous structures caused the distinct plastic performance of the Zr50.75Cu35.75Al8.5Ag5 BMGs prepared with different over-heating temperatures.
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Research context
OpenAlex topics: Metallic Glasses and Amorphous Alloys
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Luoyang Ship Material Research Institute 1 , Luoyang 471023, China
College of Mechanical and Architectural Engineering, Taishan University 2 , Tai’an 271000, China
Henan Key Laboratory of Technology and Application of Structural Materials for Ships and Marine Equipments 3 , Luoyang 471023, China
Funding
Natural Science Foundation of Shandong Province · Department of Education of Shandong Province · Major Agricultural Application Technology Innovation Projects of Shandong Province
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