PVD-COATED TRIBOSYSTEMS AT RECIPROCATING SLIDING

被引：2

作者：

SEVERIN, D ^{[1
]}

PETERSOHN, D ^{[1
]}

SANDER, H ^{[1
]}

SCHULZ, J ^{[1
]}

机构：

[1] BUNDESANSTALT MAT FORSCH & PRUFUNG,W-1000 BERLIN 45,GERMANY

来源：

MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK | 1993年 / 24卷 / 3-4期

关键词：

D O I：

10.1002/mawe.19930240315

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The aim of the investigation is to increase the life time of machinery elements of steel, sliding under high contact pressure, by PVD-coating of one of the surfaces. The three-step tribological testprogram includes a fundamental test, a model test under real conditions and a suitability test with real parts. The coefficient of variance, coating structure and surrounding conditions. Hard coatings: They enlarge the life time of lubricated systems considerably (mu less-than-or-equal-to 0,1). Without lubrication the coefficient of friction is relatively high (mu greater-than-or-equal-to 0,5), which results in a short life time. Coatings with low friction: Soft metals and chalchogenides on supporting hard coatings only reduce the friction for a short time. Metal carbon coatings yield the lowest coefficient of friction (mu = 0,2) and the greatest life time. In the range up to 1500 N/mm2 the pressure has a small influence on the life time. When the coated contact surface slides against an unmachined forged surface, the coating will be damaged after a short time due to local overload at asperities.

引用

页码：160 / 167

页数：8

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