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本文对GCr15钢/45#钢摩擦副在聚醚、合成酯、聚α-烯烃和硅油润滑下的切向微动磨损性能进行了实验研究.结果表明:在微动滑移区,与干摩擦相比,不同合成油润滑下的摩擦系数和磨损降低幅度不同.极性聚醚和合成酯形成的边界吸附膜使微动的摩擦系数比聚α-烯烃和硅油低;硅油表面张力小且黏压系数最低,形成的油膜最薄且更易在摩擦表面微裂纹中渗透,导致较大的稳态摩擦系数和磨损;聚α-烯烃润滑下微动初期形成的白层有助于降低磨损.
In this paper, experimental study on the fretting wear behavior of GCr15 steel / 45 # steel friction pair under polyether, synthetic ester, polyalphaolefin and silicone oil lubrication was carried out. The results show that in fretting slip zone, Compared with the different synthetic oil lubrication under the friction coefficient and wear reduction of different polar polyether and synthetic ester formed by the boundary adsorption film so that the friction coefficient of friction than poly-α-olefin and silicone oil is low; silicone oil surface tension is small and sticky The pressure coefficient is the lowest and the oil film formed is the thinnest and more easily infiltrated into the micro-cracks in the friction surface, resulting in larger steady-state friction coefficient and wear; the whitish layer formed during the initial microalloying under polyalphaolefin lubrication helps to reduce the wear.