La对热浸镀渗铝层厚度及耐蚀性的影响  被引量:3

Influence of La on the Corrosion Resistance and Thickness of Hot-dipped Aluminizing Layer

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作  者:文九巴[1] 张伟[2] 李晓源[1] 李全安[1] 

机构地区:[1]河南科技大学材料科学与工程学院,河南洛阳471003 [2]西安理工大学材料科学与工程学院,陕西西安710048

出  处:《材料热处理学报》2004年第4期60-62,共3页Transactions of Materials and Heat Treatment

基  金:河南省高校杰出科研人才创新工程项目资助 (2 0 0 1kycx0 0 9)

摘  要:研究稀土La及其加入量对热浸镀渗稀土铝合金层组织及性能的影响。结果表明 ,在相同的工艺条件下 ,与渗纯铝相比 ,加入适量的稀土 (La)元素可使渗铝层厚度提高到 2~ 3倍 ,渗层组织亦发生明显的变化 ,在渗层与基体之间形成了大量的Fe3Al相。The influence of content of rare earth La on the microstructure and corrosion-resistance of hot-dipped aluminizing layer on a low carbon steel was studied. The results show that, under the same technology conditions, the thickness of hot-dipped aluminizing layer by adding the appropriate content of La is about 2 - 3 times as much as that without rare earth La, and the microstructure of hot-dipped aluminizing layer has also markedly changed, and a great deal of phase Fe3Al precipitated along the boundary of a phase is observed. The corrosion resistance of the hot-dipped aluminizing layer with rare earth is significantly increased.

关 键 词:稀土 铝合金 渗铝 耐腐蚀性 

分 类 号:TG174.443[金属学及工艺—金属表面处理] TG113[金属学及工艺—金属学]

 

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