Effect of Pressure on Tribological Characteristics between Sintered Friction Materials and Steel Disk

被引：8
|
作者：
Kim, Sang Ho [1 ]
Lee, Hi Sung [1 ]
机构：
[1] Seoul Natl Univ Sci & Technol, Grad Sch Railroad, Seoul 139743, South Korea
来源：
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING | 2011年 / 12卷 / 04期
关键词：
Sintered friction materials; Friction coefficient; Wear rate; Oxidation layer; Fe(2)O(3); LOW-ALLOY STEEL; OXIDATIONAL WEAR; MILD WEAR; TEMPERATURES;
D O I：
10.1007/s12541-011-0083-y
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect pressure on tribological characteristics between sintered metallic material and low alloy heat resistance steel was investigated under dry sliding condition with lab-scale dynamometer. Tests were conducted under continuous speed at 8m/s with various pressures. The results were analyzed with SEM (scanning electronic microscopy) and X-ray diffraction. Wear rate of friction materials was change with morphology of friction surface. Stable tribolayers at friction surface affect wear rate of friction material. Tribolayer which formed both friction surfaces was Fe(2)O(3). Contact temperature was as high as 385 degrees C at 1.0MPa. Also, high brake pressure promotes an increase in height difference on friction materials' contact surface thus trap wear debris which consider to increase friction coefficient.
引用
收藏
页码：643 / 650
页数：8
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