Sliding Tribological Characteristics of a Zr-based Bulk Metallic Glass Near the Glass Transition Temperature

被引：15
|
作者：
Liu, L. F. [1 ]
Zhang, H. A. [1 ]
Shi, C. [1 ]
机构：
[1] Hunan Univ Sci & Technol, Hunan Prov Key Lab Hlth Maintenance Mech Equipmen, Xiangtan 411201, Hunan, Peoples R China
来源：
TRIBOLOGY LETTERS | 2009年 / 33卷 / 03期
基金：
美国国家科学基金会;
关键词：
Metallic glasses; Glass transition; Friction mechanisms; SEM-EDS; Hardness; WEAR BEHAVIOR; AMORPHOUS-ALLOYS; ABRASIVE WEAR; FRICTION; FE; CO;
D O I：
10.1007/s11249-009-9410-1
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Pin-on-disc apparatus was used to investigate the effect of temperature on the dry sliding friction characteristics of a Zr-based bulk metallic glass (BMG) near its glass transition temperature (T (g) = 625 K) (an analogous phenomenon in crystalline metals called the ductile-brittle transition). Unexpected variation in frictional behavior was observed in the temperature range of 603-643 K, suggesting that the glass transition and formation of protective oxide layers played roles in the tribological properties of BMG. An explanation of the behavior is given based on Scanning Electron Microscopy-Energy Dispersive Spectroscopy (SEM-EDS) analysis.
引用
收藏
页码：205 / 210
页数：6
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