以TiFe粉和碳的前驱体(石油沥青)为原料,用前驱体碳化复合技术制备了Ti-Fe-C反应喷涂复合粉末,并采用普通火焰喷涂技术成功制备了TiC/Fe陶瓷金属复合涂层.研究了不同C/Ti原子比对反应火焰喷涂TiC/Fe复合涂层相组成、显微结构和硬度的影响.结果表明,前驱体碳化复合技术制备的Ti-Fe-C系反应喷涂复合粉末中C/Ti原子比是影响涂层相组成、显微结构和硬度的关键因素.C/Ti原子比不同,涂层的相组成和硬度不同;随着C/Ti原子比增大,涂层中TiC团聚富集区增大,涂层的孔隙率也随之增大.
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