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首页> 外文会议>Society of Tribologists and Lubrication Engineers annual meeting amp; exhibition 2009 >FRICTION AND TRANSFER LAYER FORMATION IN FCC METALS: ROLE OF SURFACE TEXTURE AND ROUGHNESS PARAMETERS
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FRICTION AND TRANSFER LAYER FORMATION IN FCC METALS: ROLE OF SURFACE TEXTURE AND ROUGHNESS PARAMETERS

机译：FCC金属中的摩擦和转移层形成：表面纹理和粗糙度参数的作用

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摘要

Surface texture influences friction and transfer layer formation during sliding. In the present investigation, three well-defined surface textures - namely unidirectional, 8-ground, and random - were employed on steel plates. Experiments were conducted by sliding pins made of FCC metals (Al, Cu and Pb) against the steel plates using an inclined pin-on-plate sliding tester. Tests were conducted at a sliding velocity of 2 mm/s in ambient conditions under both dry and lubricated conditions. The morphologies of the worn surfaces of the pins and the formation of transfer layer on the counter surfaces were observed using a scanning electron microscope. Surface roughness parameters of the plate were measured using an optical profilometer. It was observed that the transfer layer formation and the value of the friction (including adhesion and plowing components) depend primarily on texture of plate surfaces. The effect of surface texture on the friction was attributed to the variation of the plowing component of friction for different surfaces. It was also observed that among the surface roughness parameters, the mean slope of the profile, △_a, correlated best with the friction. Furthermore, dimensionless quantifiable roughness parameters were formulated to describe the degree of plowing taking place at the asperity level.
机译：表面纹理会影响滑动过程中的摩擦和传递层的形成。在本研究中，在钢板上采用了三种明确定义的表面纹理，即单向，8磨削和随机纹理。实验是通过使用倾斜的销钉在板滑动测试仪上将FCC金属（Al，Cu和Pb）制成的销钉在钢板上滑动来进行的。在干燥和润滑条件下，在环境条件下以2 mm / s的滑动速度进行测试。使用扫描电子显微镜观察销的磨损表面的形态以及在相对表面上的转移层的形成。使用光学轮廓仪测量板的表面粗糙度参数。观察到，转印层的形成和摩擦值（包括附着力和犁土成分）主要取决于板表面的质地。表面质地对摩擦的影响归因于不同表面摩擦的耕作分量的变化。还观察到在表面粗糙度参数中，轮廓的平均斜率△_a与摩擦最相关。此外，制定了无量纲的可量化粗糙度参数，以描述粗糙程度下的耕作程度。

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