Experimental Study on the Effect of Pre-Corrosion on the Wear Performance of 30 CrMnSiNi2A Steel
To investigate the effect of corrosive environments on the frictional performance of 30CrMnSiNi2A hard chromium-plated materials,a pin-on-disk high-speed dry sliding friction and wear testing machine was utilized to study the frictional and wear properties of 30CrMnSiNi2A hard chromium-plated materials after pre-corrosion.Scanning electron microscopy was applied to observe the friction and wear surface,characterizing the micro-morphology of the friction surface and the wear debris produced by friction,thereby inferring the wear mechanism.The results show that 30CrMnSiNi2A hard chromium-plated materials undergo slight corrosion in salt solution,and the friction coefficient of the pre-corroded material has significant fluctuations in the early stage of the friction test,with no significant impact in the later stage.The wear mechanism under dry sliding wear is fatigue wear,and after pre-corrosion,the wear mechanism includes adhesive wear,fatigue wear,and oxidative wear.
pre-corrosionfriction and wearwear rateroughnessplastic deformation
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