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纯铝焊接接头微弧氧化研究

Research on Microarc Oxidation Coating of Pure Aluminium Welding Joint
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摘要 在硅酸钠和含氟添加剂组成的电解液体系中,采用微弧氧化的方法在工业纯铝及其氩弧焊接接头表面均匀生长了一层陶瓷膜。利用扫描电镜、能谱仪和X射线衍射仪分析了铝基体和焊接区表面陶瓷膜的形貌和相组成;探讨了硅酸钠的浓度对陶瓷膜厚度及粗糙度的影响。结果表明:铝基体及焊接区陶瓷膜的厚度及粗糙度均随着硅酸钠浓度的增大而增加,焊区膜厚及粗糙度小于基体金属。铝基体和焊缝区的微弧氧化膜特性几乎相同,陶瓷膜都是由α-Al2O3、γ-Al2O3组成。和基体金属相比,焊区陶瓷膜对应的气孔小些,且相对光滑、均匀。 在硅酸钠和含氟添加剂组成的电解液体系中,采用微弧氧化的方法在工业纯铝及其氩弧焊接接头表面均匀生长了一层陶瓷膜。利用扫描电镜、能谱仪和X射线衍射仪分析了铝基体和焊接区表面陶瓷膜的形貌和相组成;探讨了硅酸钠的浓度对陶瓷膜厚度及粗糙度的影响。结果表明:铝基体及焊接区陶瓷膜的厚度及粗糙度均随着硅酸钠浓度的增大而增加,焊区膜厚及粗糙度小于基体金属。铝基体和焊缝区的微弧氧化膜特性几乎相同,陶瓷膜都是由α-Al2O3、γ-Al2O3组成。和基体金属相比,焊区陶瓷膜对应的气孔小些,且相对光滑、均匀。
机构地区 沈阳理工大学
出处 《稀有金属材料与工程》 SCIE EI CAS CSCD 北大核心 2012年第S2期797-799,共3页 Rare Metal Materials and Engineering
关键词 工业纯铝 焊接区域 微弧氧化 形貌特征 pure aluminium welding zone microarc oxidation morphology
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参考文献7

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