摘要
采用机械合金化技术于TC4(Ti6Al4V)基体表面成功制备出Ti-Al非晶复合涂层。利用XRD、SEM、EDX等检测手段对涂层的物相组成与显微形貌进行分析,并研究了基体与涂层的显微硬度及摩擦磨损性能。结果表明,随着球磨时间的增加,涂层的厚度有效增加,组织更加均匀、致密;当球磨时间为6h时,基体表面形成了Ti-Al非晶复合涂层,厚度约185μm,其硬度最大值为HV0.1425,超过基体硬度平均值的两倍;球磨6h所得涂层的摩擦因数有效降低,可使TC4材料的耐磨性显著提高。
Ti-Al amorphous composite coating was prepared on the surface of TC4 （Ti6A14V） substrate by mechanical alloying. Phase composition and microstructure of the coating were studied using SEM, XRD and EDX. Microhardness and friction and wear properties of the substrate and the coating were tested. The results show that with increased milling time, the thickness of the coating effectively increases and the structure becomes more uniform and compact. After milling for 6 h, Ti-Al amorphous composite coating forms on the surface of the substrate, its thickness is about 185μm and its maximum hardness reaches HV0 1425, more than twice the average hardness of the substrate. The friction coefficient of the coating effectively decreases by 6 h milling,and the wear resistance of TC4 material significantly improves.
出处
《稀有金属与硬质合金》
CAS
CSCD
北大核心
2012年第3期13-17,共5页
Rare Metals and Cemented Carbides
基金
国家自然科学基金资助项目(51075205)
