Abstract
The influence of different wear time upon the formation of self-repair coating on the worn surfaces of 45 steel pairs and mechanism thereof are investigated by using MMU-5G end-face friction and wear tester.By using scanning electron microscope(SEM)and Energy dispersive X-ray(EDX),The surface of rubbing pairs and appearance of the self-repair coatings and their chemical composition are tested.The experimental results indicate that the wear time has a great influence on the formation of self-repair coating on the worn surface.When the time of friction and wear is 24 h,the sample weightlessness is zero,the self-repair coatings of the sample's worn surface are formed,which makes the surface smooth and the metal wear reduced effectively.
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