CAJ | 학술논문

提出3Cr13涂层加速磨损失效新的实验方法.采用该方法在MM200摩擦磨损试验机上,对高速电弧喷涂3Cr13涂层在含SiO_2磨粒的润滑条件下磨损失效开展了加速磨损试验,通过对比分析扫描电镜照片筛选合适的磨粒颗粒,并分析SiO_2磨粒加速涂层磨损可能的机理.结果表明:适合3Cr13涂层的加速磨损试验的磨粒粒度为微米级,通过磨损表面照片得出了磨粒在润滑条件下对涂层加速磨损作用主要表现为:微观切削、挤压和磨粒的聚集.
제출3Cr13도층가속마손실효신적실험방법.채용해방법재MM200마찰마손시험궤상,대고속전호분도3Cr13도층재함SiO_2마립적윤활조건하마손실효개전료가속마손시험,통과대비분석소묘전경조편사선합괄적마립과립,병분석SiO_2마립가속도층마손가능적궤리.결과표명:괄합3Cr13도층적가속마손시험적마립립도위미미급,통과마손표면조편득출료마립재윤활조건하대도층가속마손작용주요표현위:미관절삭、제압화마립적취집.
A new acceleration test method for accelerated wear failure of 3Cr13 coating was presented. The MM200 friction tester was used to investigate the accelerated wear life of 3Cr13 coating prepared by high velocity arc spraying technique under SiO_2 particles lubrication. The suitable abrasive particles were screened by means of SEM images. And the accelerated wear mechanism of the coating induced by SiO_2 particles was also analyzed. Experimental results demonstrated that the micron size of SiO_2 particles can be applied to accelerated wear test of 3Cr13 coating. The possible mechanism of accelerated wear caused by SiO_2 particles were obtained after the analysis of worn surface morphologies, i.e. microcutting, extruding and gathering of particles.