Preparation and Thermal Stability of Au40Cu30Pd10Si20 Metallic Glass with Good Ductility

2nd International Conference on Frontiers of Materials Synthesis and Processing

Yu, Hao^1 ; Li, Qiang^1 ; Wu, Haijun^1 ; Liu, Yi^1 ; Chen, Jialin^1 ; Zhang, Guoquan^1 ; Yin, Junmei^1

Kunming Institute of Precious Metals, Kunming

650032, China^1

关键词: Glass transition temperature Tg;    Glass-forming ability;    Initial crystallization temperatures;    Supercooled liquid region;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/493/1/012087/pdf
DOI  :  10.1088/1757-899X/493/1/012087

来源: IOP

【 摘 要 】

The Au40Cu30Pd10Si20 amorphous alloy samples with size of 5mm×0.02mm were prepared by melt-spinning method. The thermal analysis results show that the glass transition temperature Tg, the initial crystallization temperature Tx and the supercooled liquid region ΔT of Au40Cu30Pd10Si20 amorphous alloy are 404K, 440K and 36K, respectively, and the calculated glass transition temperature Trg is 0.617, the parameter γ is 0.415. Compared with other Au-based amorphous alloys, the Au40Cu30Pd10Si20 alloy has good glass-forming ability (GFA), better thermal stability and good ductility.