Dry Sliding Tribological Properties of Fe-Based Bulk Metallic Glass

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• 作者：Dawit Zenebe Segu (1)
  Jae Hyouk Choi (2)
  Seonghoon Yi (3)
  Seock Sam Kim (1) sskim@knu.ac.kr
• 关键词：Fe ; based bulk metallic glass (BMG) &#8211 ; Tribological properties &#8211 ; Wear resistance
• 刊名：Tribology Letters
• 出版年：2012
• 出版时间：July 2012
• 年：2012
• 卷：47
• 期：1
• 页码：131-138
• 全文大小：829.6 KB
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• 作者单位：1. Department of Mechanical Engineering, Graduate School, Kyungpook National University, Daegu, 702-701 Korea2. School of Architecture, Chosun University, Gwangju, 501-759 Korea3. Department of Material Science and Metallurgy, Kyungpook National University, Daegu, 702-701 Korea
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Tribology, Corrosion and Coatings
  Surfaces and Interfaces and Thin Films
  Theoretical and Applied Mechanics
  Physical Chemistry
  Nanotechnology
  
• 出版者：Springer Netherlands
• ISSN：1573-2711

文摘

The dry or unlubricated sliding friction and wear properties of as-cast and annealed BMG (bulk metallic glass) with nominal composition of Fe_66.7C_7.0Si_3.3B_5.5P_8.7Cr_2.3Al_2.0Mo_4.5 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.