铁含量对激光－感应复合快速熔覆铜－铁基复合涂层显微组织和力学性能的影响

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Bibliographic Details
Published in中国有色金属学报：英文版 Vol. 26; no. 12; pp. 3196 - 3204
Main Author 周圣丰;雷剑波;熊征;郭津波;顾振杰;潘洪波
Format Journal Article
LanguageEnglish
Published 2016
Subjects
复合涂层;激光-感应复合快速熔覆;铜-铁合金;液相分离;显微组织;力学性能
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Bibliography:43-1239/TG
composite coating; laser induction hybrid rapid cladding; Cu.Fe alloy; liquid phase separation; microstructure;mechanical properties
To select the proper composition and obtain an overall material?microstructure?property relationship for Cu?Fe alloy, theeffect of Fe content on microstructure and properties of Cu?Fe-based composite coatings by laser induction hybrid rapid claddingwas investigated. Microstructure characterization of the composite coatings was tested utilizing SEM, XRD and EDS. Microhardnessmeasurement was executed to evaluate the mechanical properties of the composite coatings. The results show that for low Fe content,the composite coating presents a feature that Fe-rich equiaxed dendrites are embedded in the Cu-rich matrix. With increasing Fecontent, the Fe-rich particles are dispersed in the Cu-rich matrix. With further increasing Fe content, large amounts of Cu-richparticles are homogeneously dispersed in the interdendrite of the Fe-rich matrix. Correspondingly, the average microhardness of thecomposite coatings increases gradually with the increase of Fe content and the microhardness of Cu14.5Fe83Si2C0.5 coating is muchtwice higher than that of the substrate.
ISSN:1003-6326