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Friction and wear characteristics of sintered Fe-Cu powder material

机译：烧结Fe-Cu粉末材料的摩擦磨损特性

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摘要

To clarify the effect of the median size of particle and the air permeability on the friction and wear characteristics of the sintered Fe-Cu powder material, wear tests were carried out under bath lubrication using a Tuya-type tribometer. The cylindrical test specimens (rotatory) made of S45C were slid against the block test specimens (stationary) made of sintered Fe-Cu powder material. The test blocks were made by a dry process and a wet process. For the case of dry process, the teat blocks were made of four kinds of the median size of particle. From the tests results, it was clear that the test block D2 of which the median size of particle was 70μm and the air permeability was 14×10{sup}(-3) darcy exhibited the best performance on the friction and wear characteristics. For the case of test block D2, the coefficient of friction was about 0.015 after 4 hr since the test was run, and the specific wear amount of test block D2 within the region of steady-state wear was the smallest in the test blocks. Further, the order of the bulk temperature rise for the test blocks after 4 hr since the test was run agreed with that of the coefficient of friction for the test blocks.
机译：为了明确颗粒中值尺寸和透气性对烧结Fe-Cu粉末材料摩擦磨损特性的影响，使用涂鸦型摩擦计在浴润滑下进行了磨损试验。由S45C制成的圆柱形试样（旋转式）与由烧结Fe-Cu粉末材料制成的块状试样（固定式）一起滑动。测试块由干法和湿法工艺制成。在干法加工的情况下，块由四种中位粒径的颗粒制成。从试验结果可以看出，颗粒中位数为70μm、透气率为14×10{sup}（-3）的D2试验块在摩擦磨损特性上表现最好。以试块D2为例，试块运行4 h后摩擦系数约为0.015，稳态磨损区域内试块D2的比磨损量在试块中最小。此外，自测试运行以来 4 小时后，试块的体温升顺序与试块的摩擦系数一致。

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