ISSN   1004-0595

CN  62-1095/O4

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王伟强, 温诗铸. 金属无润滑磨损过程的原位观察与研究[J]. 摩擦学学报, 1991, 11(3): 145-150. DOI: 10.16078/j.tribology.1991.03.001
引用本文: 王伟强, 温诗铸. 金属无润滑磨损过程的原位观察与研究[J]. 摩擦学学报, 1991, 11(3): 145-150. DOI: 10.16078/j.tribology.1991.03.001
温. In-situ Observation and Study of the Unlubricated Wear Process[J]. TRIBOLOGY, 1991, 11(3): 145-150. DOI: 10.16078/j.tribology.1991.03.001
Citation: 温. In-situ Observation and Study of the Unlubricated Wear Process[J]. TRIBOLOGY, 1991, 11(3): 145-150. DOI: 10.16078/j.tribology.1991.03.001

金属无润滑磨损过程的原位观察与研究

In-situ Observation and Study of the Unlubricated Wear Process

  • 摘要: 作者借助于新研制的可以直接观察磨损动态过程的试验装置和扫描电镜原位观察了无润滑条件下金属滑动表面的磨损特征与变化,发现摩擦表面可以划分为真实接触区和过渡磨损区,两者的磨损机理不同,真实接触区发生的是粘着磨损,而且磨粒沿摩擦力方向有明显增大的趋势;随着真实接触区的磨损,过渡磨损区可以逐渐转变为真实接触区,而且由于磨粒增多,非磨损区也可以逐渐转变为过渡磨损区。对磨损过程中摩擦力变化的测试结果表明,当磨损表面发生粘着时的粘着力与Bowden和Tabor粘着理论计算值十分接近。

     

    Abstract: Wear characteristics and changes on wear surface under the condition of dry friction were observed by a scanning electron microscope and a new experimental apparatus which was used to directly observe the dynamic wear process.The wear surface can be divided into a real contact area and a transition wear area. The wear mechanisms in the two areas were different. Adhesion wear occurred in the real contact area. There is a trend that the size of wear particles increased obviously along the direction of friction force. Along with progressing of wear in the real contact area, the transition area could be gradually changed into the real area, mean while, the unworn area could be changed into the transition one because of the increase of particle number. The results of the changes in friction force measured during wear process shown that the adhesion force is extremely close to the theoriticai value according to Bowden and Tabor's work.

     

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