Authors: SONGBO YIN DY LI R BOUCHARD
Publish Date: 2007/05/23
Volume: 38, Issue: 5, Pages: 1032-1040
Abstract
Wear of materials in corrosive environments has received considerable interest in recent years It has been demonstrated that the wearcorrosion synergy can be markedly affected by the strain rate In this study effects of strain rate of prior deformation on corrosion and corrosive wear of AISI 1045 steel in a 35 pct NaCl solution were investigated using an electrochemical test scanning Kelvin probing and corrosive sliding wear tests respectively Six strain rates of prior deformation from 75 × 10−4 s−1 to 2 s−1 were employed for this study In order to understand the mechanism responsible for the effects of the strain rate on corrosion and corrosive wear worn surfaces subsurface microstructure microcracks and residual strain were examined with scanning electron microscopy SEM Xray line profile analysis Microhardness tests were also carried out to investigate corresponding changes in mechanical properties of surface layers with respect to the strain rate Based on the effects of prior strain at different rates on surface microstructure and resultant changes in electrochemical and mechanical properties the corresponding wear behavior of the steel in the 35 pct NaCl solution is discussed
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