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不少零件主要是由于磨损而引起失效.一些对精度要求较高的零件,表面即使有极少量的磨损亦不能继续再使用.许多机械零部件在最后磨削加工后使用,而由于磨削工艺不当,出现的磨削变质层将会直接影响其耐磨性能,故研究磨削变质层对材料耐磨性的影响则显得十分重要.由于磨削变质层极薄,磨损量又极微,用失重法一般是无法准确测定磨损量的,更无法研究整个磨损过程的演变规律.为此,本文用放射性同位素研究磨削变质层对材料耐磨性的影响,其结果表明,此方法的灵敏度和可靠性均较高.
Many parts are mainly due to wear and tear caused by failure. Some of the more demanding precision parts, the surface even with a small amount of wear and tear can not continue to use many mechanical parts used in the final grinding, and because the grinding process Improper, there will be a direct impact on the grinding of the metamorphic layer of abrasion resistance, so the study of the impact of abrasive metamorphic layer on the wear resistance of the material is very important because the grinding of the metamorphic layer is extremely thin, Weight loss method is generally unable to accurately measure the amount of wear, but also can not study the evolution of the entire wear process.To this end, the paper used radioactive isotopes to study the wear resistance of the modified layer of abrasion resistance, the results show that the sensitivity and High reliability.