摘要
以纯Fe粉和纯Al粉为熔覆材料,在ZL101基体表面采用激光熔覆工艺制备了3种不同成分的Fe-Al化合物涂层。利用光学显微镜、扫描电镜(SEM)、X射线衍射(XRD)仪和显微硬度计,对熔覆合金层以及熔覆层与铝合金基体的结合界面区的组织结构和显微硬度进行了分析。实验结果表明,激光熔覆涂层主要由FeAl与Fe_3Al相构成,涂层与基体呈锯齿状结合。3种涂层(Fe-Al,2Fe-Al和3Fe-Al)均有较高的显微硬度,分别为744 HV,603 HV和795 HV。
Fe-Al Intermetallics coatings are prepared on ZL101 substrate by laser cladding pure Fe and pure Al powders. The microstructure and hardness of the coatings and interface between the coating and substrate are analyzed by using optical microscopy, SEM, X-ray diffraction （XRD）, and microhardness testing machines. The results show that the bonding zones between substrate and coatings are sawtooth-liked structure. The coating mainly constitute of FeAI and Fe3AI phases. All the three coatings （Fe-Al, 2Fe-Al and 3Fe-Al）have high microhardness, which achieve 744 HV, 603 HV and 795 HV respectively.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2009年第6期1581-1584,共4页
Chinese Journal of Lasers
基金
山东省自然科学基金(Q2008F12)
中国石油大学(华东)博士基金(Y060314)资助课题
作者简介
王彦芳（1976-），博士，副教授，主要从事激光表面改性的研究。E-mail：wang@hdpu．edu．cn
