The role of passive oxide films on the degradation of steel in tribocorrosion systems

被引：119

作者：

Mischler, S ^{[1
]}

Spiegel, A ^{[1
]}

Landolt, D ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, DMX LMCH, CH-1015 Lausanne, Switzerland

来源：

WEAR | 1999年 / 225卷

关键词：

passive oxide films; degradation; steel; tribocorrosion systems;

D O I：

10.1016/S0043-1648(99)00056-3

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Applying electrochemical polarization during wear experiments permits one to control the surface chemistry (presence or not of a passive oxide film) of a metal rubbing against an insulating body and to determine the relative contribution of mechanical (wear) and chemical (corrosion) mechanisms on the overall metal degradation. The degradation of carbon steel sliding against alumina was investigated in borate solution of pH 8.4 using a reciprocating ball on plate wear test rig equipped with an electrochemical cell. Three different hardness values were produced by application of appropriate heat treatments to the steel samples. It was found that the presence of a passive film decisively influenced the degradation mechanism and led to increased wear compared to the oxide free metal. Two different degradation mechanisms, wear accelerated corrosion and mechanical surface degradation favored by the passive film were identified as being responsible for this behavior and their relative contribution to overall material loss was determined. (C) 1999 Published by Elsevier Science S.A. All rights reserved.

引用

页码：1078 / 1087

页数：10

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