EFFECT OF A MAGNETIC-FIELD ON THE DIFFUSIVE WEAR OF CUTTING TOOLS
EFFECT OF A MAGNETIC-FIELD ON THE DIFFUSIVE WEAR OF CUTTING TOOLS
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DOI：
10.1016/0043-1648(80)90218-5
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发表时间：
1980-01-01
期刊：
影响因子：
5
通讯作者：
GHOSH, A
中科院分区：
文献类型：
--
作者：
MUJU, MK;GHOSH, A
研究了外加直流磁场对两种以理想凸点为代表的摩擦体扩散磨损的影响。磁场的存在影响了粗晶连接处的断裂特性，产生了不同的磨损率。一个简单的模型预测了粗糙体表面的硬度梯度对滑动副磨损特性的影响。磨损颗粒的质量直接受扩散系数的影响，外加磁场对变形结的影响较大。对低碳钢与黄铜摩擦的数值计算和实验观察支持了外磁场的应用增强了凹凸交界处扩散磨损的预测。
The influence of an external d.c. magnetic field on the diffusive wear of two rubbing bodies represented by idealized asperities was investigated. The magnetic field affects the fracture characteristics at the asperity junction giving different wear rates owing to the presence of the magnetic field. A simple model predicts how the hardness gradient at the surface of the asperity is of significance in affecting the wear characteristics of a sliding pair. The mass of a wear particle is directly affected by diffusivity, and the application of an external magnetic field to a deforming junction affects it considerably. Numerical calculations and experimental observations for mild steel rubbing against brass support the predictions that the application of an external magnetic field enhances diffusive wear at an asperity junction.