摘要
利用传统浇铸技术铸造含15%Sn的Cu-Sn-Pb青铜合金。经不同温度热处理及未经热处理的样品在酸性含Cl-环境中进行腐蚀试验,用金相和XRD分析两者的耐腐蚀性能。结果表明:经过热处理后,其内部的晶间组织结构发生改变,δ相分解或减少,α相再结晶。选择合适的热处理温度可以增强青铜的耐腐蚀能力,达到控制"粉状锈"的效果。
This paper presents an analytical study on two ternary Cu-Sn-Pb systems forged by using the Chinese traditional casting technique with difference in the amount of tin 15%. We had some of these copper alloys heated under different temperatures, then kept all the heated and unheated samples under an acid and chlorine-rich environment for several days.With the combined use of XRD analysis and metallographic examination, corrosion resistance of copper alloys was carefully discussed. The delta phase decomposed or diminished while the alpha phase recrystallized. When a proper temperature was chosen for reheating, the delta phase was found eliminated and the intergranular structure changed again. This experiment indicates that by doing so the corrosion resistance of copper alloys can be greatly improved, which in return helps controlling the outbreak of bronze disease.
出处
《中国腐蚀与防护学报》
CAS
CSCD
北大核心
2008年第2期112-115,共4页
Journal of Chinese Society For Corrosion and Protection
基金
中国科学院知识创新工程项目资助(KJCXS.SYW.NIZ)
关键词
青铜合金
腐蚀
金相
晶间结构
热处理
bronze alloy, corrosion, microstructure, intergranular structure, heat treatment
