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首页> 外文期刊>Advanced Experimental Mechanics >Investigation of Friction and Surface Damage of Bearing Steel in Cyclic Reciprocating Sliding Contact by Making Use of Fatigue Testing Machine
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Investigation of Friction and Surface Damage of Bearing Steel in Cyclic Reciprocating Sliding Contact by Making Use of Fatigue Testing Machine

机译：疲劳试验机研究循环往复滑动接触中轴承钢的摩擦和表面损伤

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摘要

Rolling contact machine elements like bearing, gear wheel and railway rail have a problem of delamination failure such as flaking, pitting and shelling. It is known that this failure is closely related to shear-mode (mode II and mode III) as well as opening-mode (mode I) fatigue crack growth. In general, the shear-mode fatigue crack growth and its threshold behavior can be significantly influenced by the interaction of opposing crack faces. Therefore, understanding of the mechanism of friction and surface damage of crack faces is essential and a novel testing method that can estimate appropriately these properties is required. In this study, the influences of the cyclic reciprocating sliding contact with microscale relative motion on the frictional behavior and the surface damage of a bearing steel were studied under dry condition. The material investigated was a heat-treated high carbon-chromium bearing steel (JIS SUJ2). As a new friction and wear testing method, a cyclic ring-on-ring test was performed by making use of a hydraulic-controlled combined axial and torsional fatigue testing machine. The coefficient of kinetic friction was ranged from 0.4 to 1.0 and its average value was about 0.75.
机译：滚动接触机器元件（例如轴承，齿轮和铁轨）存在分层失败的问题，例如剥落，麻点和脱壳。众所周知，这种破坏与剪切模式（模式II和模式III）以及打开模式（模式I）疲劳裂纹扩展密切相关。通常，剪切模式疲劳裂纹扩展及其阈值行为会受到相对裂纹面相互作用的显着影响。因此，了解裂纹面的摩擦和表面损伤的机理是必不可少的，因此需要一种可以适当估计这些性能的新颖测试方法。在这项研究中，研究了在干燥条件下，循环往复滑动接触与微观相对运动对轴承钢的摩擦行为和表面损伤的影响。研究的材料是热处理的高碳铬轴承钢（JIS SUJ2）。作为一种新的摩擦磨损测试方法，通过使用液压控制的组合轴向和扭转疲劳试验机进行了环对环试验。动摩擦系数在0.4至1.0的范围内，并且其平均值为约0.75。

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