Dry Sliding Tribological Properties of Fe-Based Bulk Metallic Glass

作者：Segu Dawit Zenebe; Choi Jae Hyouk; Yi Seonghoon; Kim Seock Sam^*

来源：Tribology Letters, 2012, 47(1): 131-138.

DOI：10.1007/s11249-012-9969-9

• Fe-based bulk metallic glass (BMG)
• Tribological properties
• Wear resistance

The dry or unlubricated sliding friction and wear properties of as-cast and annealed BMG (bulk metallic glass) with nominal composition of Fe66.7C7.0Si3.3B5.5P8.7Cr2.3Al2.0Mo4.5 against Si3N4 ceramic ball was studied, along with a conventional material, using a ball-on-disk tribotester at room temperature. The overall average coefficient of friction value of the as-cast BMG was in the range of 0.26-0.42, which was better than the conventional material SUJ2 (0.36-0.46) and comparable with SUS304 (0.31-0.40). The wear mechanism of the Fe-based BMG changed with wear condition. The wear rate increased with increasing load. The hardness of the BMG increased during annealing, however, the wear resistance did not increase proportionally.

• 出版日期2012-7