Tribological Characteristics of AlMgB14 and Nanocomposite AlMgB14-TiB2 Superhard Coatings

被引：0
|
作者：
Qu, Jun [1 ]
Blau, Peter J. [1 ]
Zhu, Dong
Cook, Bruce A.
Elmoursi, Alaa A.
机构：
[1] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA
来源：
PROCEEDINGS OF THE STLE/ASME INTERNATIONAL JOINT TRIBOLOGY CONFERENCE 2008 | 2009年
关键词：
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This study investigated the friction and wear characteristics of two super-hard coatings on M2 steel. One was AlMgB(14), produced by pulsed laser deposition (PLD), and the other was a nanocomposite of AlMgB(14)-TiB(2), produced by physical vapor deposition (PVD). Tests were conducted tinder unidirectional and reciprocating sliding against AISI 52100 bearing steel in both dry and oil-lubricated conditions. The AlMgB14 coating exhibited an encouraging but short-lived low friction stage (mu = 0.2) in dry sliding. The AlMgB(14)-TiB(2) coating reduced the wear rates by one order of magnitude relative to the M2 steel and three orders of magnitude for the counter-face in dry sliding. This nanocomposite coating also demonstrated significant extension (>2.5X) of the low friction (non-scuffing) stage when sliding under starved lubrication.
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页码：757 / 759
页数：3
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