Nanowear of a Zr Based Bulk Metallic Glass/Nanocrystalline Alloy
来源期刊：材料热处理学报2004年第5期
论文作者：CHU Wu-yang LI Jin-xu LIANG Song
关键词：Zr based bulk metallic glass; partial crystallization; nano-scratch; nano-wear;
摘 要：The hardness, elastic modulus, nano-scratch resistance and wear depth for a bulk metallic glass of Zr57Nb5Cu15.4Ni12.6Al10 and its partial crystallization alloys have been measured by using nanoindentation method. The results showed that partial crystallization did not influence the reduced elastic modulus but increased the hardness, and then increased the scratch coefficient. The scratch coefficient increased linearly with increasing the hardness H but decreases when H＞6.2GPa. Partial crystallization decreased evidently the wear depth, and when the load was large the wear depth decreased with increasing the hardness.
CHU Wu-yang1，HE Jian-ying1，SUN Dong-bai1，LI Jin-xu1，LIANG Song1，QIAO Li-jie1
(1.Department of Materials Physics and Chemistry, University of Science and Technology Beijing Beijing 100083, P. R. China;
2.Beijing Engineering-Research Center for Surface Nano-Technology, Beijing 100083, P. R. China)
摘要:The hardness, elastic modulus, nano-scratch resistance and wear depth for a bulk metallic glass of Zr57Nb5Cu15.4Ni12.6Al10 and its partial crystallization alloys have been measured by using nanoindentation method. The results showed that partial crystallization did not influence the reduced elastic modulus but increased the hardness, and then increased the scratch coefficient. The scratch coefficient increased linearly with increasing the hardness H but decreases when H＞6.2GPa. Partial crystallization decreased evidently the wear depth, and when the load was large the wear depth decreased with increasing the hardness.
关键词:Zr based bulk metallic glass; partial crystallization; nano-scratch; nano-wear;
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