CAJ | 학술논문

采用超音速等离子喷涂技术在45号钢表面制备粒度范围为-280~+320目、-320~+360目、-360~+400目、-400目的4种高铝青铜合金粉体涂层。采用XRD、SEM等手段对涂层的物相组成、组织结构、显微硬度等进行了分析，研究了粒度对涂层组织及性能的影响。结果表明，粉体的粒度对涂层显微组织结构及性能有着重要影响。粉体粒度越细小，涂层的组织及性能越优良。-400目的粉体制备的涂层组织致密均匀，层流状结构明显，显微硬度可达367.5 HV。
채용초음속등리자분도기술재45호강표면제비립도범위위-280~+320목、-320~+360목、-360~+400목、-400목적4충고려청동합금분체도층。채용XRD、SEM등수단대도층적물상조성、조직결구、현미경도등진행료분석，연구료립도대도층조직급성능적영향。결과표명，분체적립도대도층현미조직결구급성능유착중요영향。분체립도월세소，도층적조직급성능월우량。-400목적분체제비적도층조직치밀균균，층류상결구명현，현미경도가체367.5 HV。
Took 45 steel as the matrix,high aluminum bronze alloys coatings were prepared by S-APS with four different particle sizes powders,which were -280-+320meshes,-320-+360meshes,-360-+400meshes and-400 meshes.The phase composition,microstructure,microhardness were analyzed by means of XRD and SEM.The results shows that the powder particle sizes have an important influence on the coating structure and performance.The smaller powder sizes are,the better the coatings structure and performance are.The coating prepared by the -400 meshes powders has dense and homogeneous organization,obvious laminar structure characteristic.The average hardness of the coating of - 400 meshes powders reaches 367.5HV.