CAJ | 학술논문

304奥氏体型不锈钢因其良好的耐蚀性广泛用于工业生产，但是受组织所限，硬度较低。采用高速电弧喷涂设备在304不锈钢表面制备 Ni-Al 涂层和耐磨涂层，研究了涂层的组织结构、硬度及耐磨损性能。结果表明：喷涂 Ni-Al 合金和陶瓷材料丝材，都能有效地改善304不锈钢表面的耐磨性能，试验所制备的 Ni-Al 合金涂层成形良好，组织均匀且结构致密，涂层表面显微硬度值达601 HV，耐磨性约为304不锈钢基体的3倍；试验所制备的陶瓷涂层成形良好，组织均匀且结构致密，涂层摩擦系数只有 Ni-Al 涂层的53％，涂层表面显微硬度值达999 HV，耐磨性约为304不锈钢基体的6倍，具有良好的耐磨性。
304오씨체형불수강인기량호적내식성엄범용우공업생산，단시수조직소한，경도교저。채용고속전호분도설비재304불수강표면제비 Ni-Al 도층화내마도층，연구료도층적조직결구、경도급내마손성능。결과표명：분도 Ni-Al 합금화도자재료사재，도능유효지개선304불수강표면적내마성능，시험소제비적 Ni-Al 합금도층성형량호，조직균균차결구치밀，도층표면현미경도치체601 HV，내마성약위304불수강기체적3배；시험소제비적도자도층성형량호，조직균균차결구치밀，도층마찰계수지유 Ni-Al 도층적53％，도층표면현미경도치체999 HV，내마성약위304불수강기체적6배，구유량호적내마성。
304 austenitic stainless steel is widely used in industrial production because of its good corro-sion resistance,but limited by the organization,the hardness is lower.In this paper,a high speed elec-tric arc spraying equipment was used to prepare the Ni-Al coating and wear resistant coating on 304 stain-less steel.The microstructure,hardness and wear resistance of the coating was studied.The results show that the wear resistance of the 304 stainless steel can be improved by spraying a Ni-Al alloy and ceramic material.The prepared Ni-Al alloy coating has excellent microstructure and compact structure.The micro hardness of the coating is 601 HV,and the wear resistance is 3 times to that of 304 stainless steel.The ceramic coating has good shape,uniform structure and compact structure.The coating friction coefficient is only 53% of Ni-Al coating.The microstructure’s hardness of the coating is 999 HV,and the wear re-sistance is about 6 times than that of 304 stainless steel.The coating has excellent wear resistance.