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在MRH-3型高速环块磨损试验机上研究了粉末冶金方法制备的316L不锈钢/Y-PSZ金属陶瓷复合材料在干摩擦条件下的摩擦磨损性能,并与T10钢(HRC 45)的耐磨性能进行了对比.考察了316L不锈钢体积分数(30%~50%)、颗粒尺寸(10.8~51.6μm)及对偶环转速(200~280r·min-1)对材料耐磨性的影响.结果表明:随着316L不锈钢含量的增加和颗粒尺寸的增大,或随着对偶环转速的提高,复合材料的耐磨性下降.在本文研究条件下,除个别情形外,所制备316L/Y-PSZ复合材料的耐磨性能优于T10钢;当不锈钢体积分数为30%、颗粒尺寸为10.8μm时,复合材料的耐磨性能达到T10钢的3.0~3.2倍.316L不锈钢/Y-PSZ复合材料的磨损机理主要为316L不锈钢颗粒剥落和Y-PSZ基体层片剥落.
The friction and wear properties of 316L stainless steel / Y-PSZ cermet composite prepared by powder metallurgy method under dry friction condition were studied on MRH-3 high-speed ring-block wear tester and compared with that of T10 steel (HRC 45) The effects of volume fraction of 316L stainless steel (30% ~ 50%), particle size (10.8 ~ 51.6μm) and dual ring rotation speed (200 ~ 280 r · min-1) on the wear resistance of the material were investigated.The results show that: With the increase of 316L stainless steel content and particle size, or with the increase of the speed of the dual rings, the wear resistance of the composites decreased.Under the conditions of this study, the prepared 316L / Y-PSZ composites When the volume fraction of stainless steel is 30% and particle size is 10.8μm, the wear resistance of the composite is 3.0-3.2 times that of T10 steel.The wear of 316L stainless steel / Y-PSZ composite The main mechanism of 316L stainless steel particles spalling and Y-PSZ matrix layer flaking.