中国激光, 2009, 36 (6): 1581, 网络出版: 2009-06-08   

ZL101铝合金表面激光熔覆Fe-Al金属间化合物涂层

Laser Cladding Fe-Al Intermetallics Coatings on ZL101 Substrate
作者单位
1 中国石油大学(华东)材料科学与工程系, 山东 东营 257061
2 辽宁工程技术大学材料科学与工程系, 辽宁 阜新 123000
3 山东石大胜华化工股份有限公司, 山东 东营 257061
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Fe3Al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。
Abstract
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 FeAl and Fe3Al 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.
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王彦芳, 李刚, 武同霞. ZL101铝合金表面激光熔覆Fe-Al金属间化合物涂层[J]. 中国激光, 2009, 36(6): 1581. Wang Yanfang, Li Gang, Wu Tongxia. Laser Cladding Fe-Al Intermetallics Coatings on ZL101 Substrate[J]. Chinese Journal of Lasers, 2009, 36(6): 1581.

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