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提供一种制备球-盘摩擦磨损试验机(pin-on-disk wear tester)的方法,用以测试硬质薄膜的摩擦学性能。此试验机提供的数据有:摩擦因数f,磨损量Wv和比磨损率Wr。首先深入研究球-盘磨损试验机的工作原理,确定其工作原理是通过荷重传感器的A-D转换,将摩擦力的模拟信号转变为电压数字信号,输入计算机或者X-Y记录仪。然后与事先标定好的电压值对比,得到测试过程中的摩擦力。传感器的标定方法为:用已知载荷(一定质量的砝码)对传感器施加拉力,传感器将其转变成电压值,绘出电压U-拉力F关系曲线,将其用直线拟合。同时提供了数据处理的方法,并利用此试验机测试了多弧离子镀TiN薄膜以及磁控溅射非晶碳膜的摩擦学性能,得到摩擦因数曲线和磨痕形貌。最后对此试验机的缺点进行了分析。
A method for preparing a pin-on-disk wear tester is provided for testing the tribological properties of hard films. The test machine to provide the data: the friction coefficient f, wear Wv and specific wear rate Wr. First of all, the working principle of the ball-disc wear testing machine is studied in depth. The working principle of the ball-disc abrasion testing machine is to determine the working principle of the ball-to-disk wear testing machine through the A-D conversion of the load cell to convert the frictional analog signal into a voltage digital signal and input into a computer or X-Y recorder. And then compared with the pre-calibrated voltage value, get the friction in the test process. The sensor calibration method: the known load (weight of a certain mass) to the sensor tension, the sensor will convert it into a voltage value, draw the voltage U-tension F relationship curve, which will be fitted with a straight line. At the same time, the method of data processing was provided. The tribological properties of TiN films deposited by multi-arc ion plating and amorphous carbon films deposited by magnetron sputtering were tested by this tester. The friction coefficient curves and wear scar morphology were obtained. Finally, the shortcomings of this testing machine were analyzed.