周雷,蔡琰,张炎雨,吴栅,谢志雄,董仕节,解剑英

• 1:湖北工业大学绿色轻工材料湖北省重点实验室
• 2:湖北隆中实验室
• 3:武汉轻工大学机械工程学院
• 4:台州三孚新材料科技股份有限公司

摘要(Abstract)：

对高频感应焊接H65黄铜管进行海水浸泡实验，测量了不同浸泡时间后黄铜焊管的质量变化率，利用体式显微镜、扫描电镜(SEM)、电子探针(EPMA)、电子背散射衍射(EBSD)技术以及X射线光电子能谱(XPS)对焊缝浸泡腐蚀后的微观形貌和元素分布进行分析，利用电化学工作站对焊接接头进行电化学性能测试。结果表明：随着浸泡时间的延长，含有焊缝试样与母材的质量变化率之差逐渐增大；腐蚀产物主要有CuO、Cu(OH)_2、Cu_2O、CuCl、ZnO和Zn(OH)_2等，H65黄铜在海水中的腐蚀机理为“溶解-再沉积”机制；电化学腐蚀的结果表明，焊接接头的耐蚀性低于母材，这是由于焊缝晶粒产生了严重的塑性变形，导致焊接接头的位错密度和内应力大，能量较高。

关键词(KeyWords)： 高频感应焊接;H65黄铜;浸泡腐蚀实验;耐蚀性

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51771071);; 湖北省国际科技合作项目(2022EHB020);; 湖北隆中实验室自主创新项目(2022ZZ-17)

作者(Author): 周雷,蔡琰,张炎雨,吴栅,谢志雄,董仕节,解剑英

DOI: 10.13289/j.issn.1009-6264.2024-0036

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