Preparation of Thermo-Stable Bulk Metallic Glass of Nd60Cu20Ni10Al10 by Rapid Compression
YUAN Chao-Sheng1, LIU Xiu-Ru1, SHEN Ru1, SUN Zhen-Ya2, CHEN Bo2, LV Shi-Jie1, HE Zhu1, HU Yun1, HONG Shi-Ming1
1Laboratory of High Pressure Physics, Southwest Jiaotong University, Chengdu 610031 2Certer for Materials Research and Testing, Wuhan University of Technology, Wuhan 430070
Preparation of Thermo-Stable Bulk Metallic Glass of Nd60Cu20Ni10Al10 by Rapid Compression
YUAN Chao-Sheng1, LIU Xiu-Ru1, SHEN Ru1, SUN Zhen-Ya2, CHEN Bo2, LV Shi-Jie1, HE Zhu1, HU Yun1, HONG Shi-Ming1
1Laboratory of High Pressure Physics, Southwest Jiaotong University, Chengdu 610031 2Certer for Materials Research and Testing, Wuhan University of Technology, Wuhan 430070
Melt of Nd60Cu20Ni10Al10 alloy is solidified by rapid compression from 0.1 to 5.5 GPa at 793 K and from 0.1 to 3.2 GPa at 873 K within 20 ms, separately. A fully bulk metallic glass is obtained by the rapid compression method. By comparing with as-cast bulk metallic glass (BMG), it is found that Nd60Cu20Ni10Al10 BMG prepared by rapid compression exhibits a higher thermodynamic stability and a paramagnetic property. The relationship between the glass-formation temperature and the pressure in rapid compression for the BMG is demonstrated in the P-T phase diagram.
Melt of Nd60Cu20Ni10Al10 alloy is solidified by rapid compression from 0.1 to 5.5 GPa at 793 K and from 0.1 to 3.2 GPa at 873 K within 20 ms, separately. A fully bulk metallic glass is obtained by the rapid compression method. By comparing with as-cast bulk metallic glass (BMG), it is found that Nd60Cu20Ni10Al10 BMG prepared by rapid compression exhibits a higher thermodynamic stability and a paramagnetic property. The relationship between the glass-formation temperature and the pressure in rapid compression for the BMG is demonstrated in the P-T phase diagram.
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2010, Vol. 27 
