Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/17704
Title: Influence of melt temperature on the compressive plasticity of a Zr-Cu-Ni-Al-Nb bulk metallic glass
Authors: Zeng, XR
Xie, SH
Hu, Q
Fu, DJ
Qian, HX
Fu, MW 
Issue Date: 2011
Publisher: Springer
Source: Journal of materials science, 2011, v. 46, no. 4, p. 951-956 How to cite?
Journal: Journal of materials science 
Abstract: Zr 63.78Cu 14.72Ni 10Al 10Nb 1.5 BMGs (bulk metallic glasses) were cast at the melt temperatures ranging from 1,073 to 1,313 K with the same interval of 40 K. The structure, thermal, and mechanical properties of the BMGs were investigated by XRD, DSC, HRTEM, dilatometric measurements, micro-hardness tests, and uniaxial compression. The results indicate that the higher the casting temperature, the fewer the nano-crystallites, the more the free volumes, and the lower the micro-hardness in the BMGs, leading to the larger plastic strains. The plasticity of BMGs deteriorates with the increase of nano-crystallites as decreasing the casting temperature. The free volume, instead of the nano-crystallites, favors the plastic deformation in Zr 63.78Cu 14.72Ni 10Al 10Nb 1.5 BMGs. The microstructures and mechanical performance of BMGs are closely affected by the casting temperature. The preparing parameters are important to improve the plasticity of the BMGs.
URI: http://hdl.handle.net/10397/17704
ISSN: 0022-2461
EISSN: 1573-4803
DOI: 10.1007/s10853-010-4839-z
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