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为提高TiC/316L不锈钢复合材料的致密度和力学性能,采用温压成型和微波烧结复合方法制备了质量百分数为5%的TiC/316L复合材料.在MM-200型环块磨损试验机上研究了复合材料在干摩擦条件下的摩擦磨损性能,并与传统粉末冶金法制备的复合材料耐磨性能进行了对比研究.结果表明:与传统粉末冶金法相比,在相同的烧结温度下,采用温压成型和微波烧结制备的TiC/316L复合材料虽然内部也存在一些孔隙,但组织比较均匀,烧结比较充分,复合材料的致密度和耐磨性均得以提高.随着温压压制压力的增加,复合材料的相对密度和耐磨性快速增加,但过高的压制压力不利于耐磨性的提高.摩擦磨损试验结果表明在压制压力为400 MPa时,复合材料的耐磨性较好.
In order to improve the density and mechanical properties of TiC / 316L stainless steel composites, TiC / 316L composites with mass percentage of 5% were prepared by hot compaction and microwave sintering composites.In the MM-200 ring block wear tester, The friction and wear properties of the composites under dry friction were compared with the wear resistance of the composites prepared by the conventional powder metallurgy method.The results show that compared with the traditional powder metallurgy method, under the same sintering temperature, Although TiC / 316L composites prepared by molding and microwave sintering have some pores inside, the microstructure is more uniform and sintering is more complete, the density and wear resistance of the composites are improved.With the increase of temperature and pressure, The relative density and wear resistance of the composites increase rapidly, but the high compaction pressure is not conducive to the improvement of the wear resistance.Friction and wear test results show that the wear resistance of the composites is better when the compaction pressure is 400 MPa.