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通过考虑不同的参数,包括滑动距离(6 km)、压力(0.14~1.1 MPa)和滑动速度(230~1480 r/min),研究增强相对金属基复合材料(MMC)磨损机理的影响。在一台销-盘式磨损试验机上,对比研究相同实验条件下MMC和相应基体材料的磨损机理。销由6061铝基合金或者10%Al2O3(体积分数)颗粒(6~18μm)增强的6061铝基复合材料组成,盘由钢铁组成。得到以下主要结论:MMC比相应的基体材料具有更优的耐磨性;与基体材料不同,MMC的磨损性是线性的和可预测的;除了MMC的三体磨粒磨损外,两种材料的磨损机理相似;增强相能抗磨损并限制MMC的变形,从而导致MMC具有更优的耐磨性。所得结果显示了增强相颗粒在提高MMC耐磨性方面的作用,并为更好地控制其磨损提供了有效指导。
The effect of enhancing the wear mechanism of the relative metal matrix composites (MMC) was investigated by considering different parameters, including sliding distance (6 km), pressure (0.14 ~ 1.1 MPa) and sliding speed (230 ~ 1480 r / min). On a pin-on-disc wear tester, the wear mechanism of MMC and corresponding matrix materials under the same experimental conditions was compared. The pin consists of 6061 aluminum-based composite material reinforced with 6061 aluminum-based alloy or 10% Al2O3 (volume fraction) particles (6-18 μm), the plate consisting of steel. The main conclusions are as follows: MMC has better wear resistance than the corresponding matrix material; different from the matrix material, MMC wear is linear and predictable; in addition to MMC three-body abrasive wear, the two materials The wear mechanism is similar; the reinforcing phase resists wear and limits the deformation of the MMC, resulting in an MMC with better wear resistance. The results obtained show the effect of the reinforcing phase particles on improving the wear resistance of the MMC and provide an effective guide for better control of wear.