摘要
设计了一种无砷的HAl77-2-Re耐腐蚀铝黄铜。利用失重法、电化学测试、X射线衍射分析、扫描电镜与能谱分析等手段研究了这种稀土铝黄铜在NaCl(3.5%)溶液中的耐腐蚀性能及其腐蚀行为。结果表明:在稀土铝黄铜的腐蚀过程中,稀土参与了表面腐蚀产物膜的形成,增大了极化电阻,抑制了腐蚀的进行,提高了合金的耐腐蚀性能;与含砷铝黄铜相比,表现出了较好的耐腐蚀性能。
An inhibited brass with arsenic free was designed. The corrosion resistance and corrosion behavior of the alloy in NaCl(3.5 % )solution were studied by means of weight loss measurement, electrochemical testing, X-ray diffraction analysis(XRD), scanning electron microscopy and energy dispersive X-ray analysis (SEM-EDX). The results show that the rare-earth element in the alloy can promote formation of corrosion film, increase polarization resistance and inhibit the corrosion process as the alloy in NaCl(3.5% ) solution. The corrosion resistance of HAl77-2-Re alloy is higher than that of the HAl77-2 alloy with arsenic.
出处
《材料热处理学报》
EI
CAS
CSCD
北大核心
2007年第6期104-108,共5页
Transactions of Materials and Heat Treatment
基金
国家"863"计划项目(2006AA03Z517)
国际铜业协会"耐蚀铜合金"资助项目(MBP3553)
关键词
黄铜
腐蚀
稀土
brass
corrosion
rare-earth
作者简介
唐宁(1983-),男,硕士研究生,主要从事有色金属新材料的研究。
通讯作者:李周(1969-),男,副教授,博士,电话:0731—8830264,E—mail:lizhou6931@163.com。