镓含量对纯铝的耐蚀性的影响
来源期刊：材料工程2008年增刊第1期
论文作者：WANG Jun LIN Jin-ping SUN Bao-de
关键词：Al-Ga alloy; polarization curve; immersion test; pitting corrosion;
摘 要：The effect of small amount gallium (up to 0.06%) on the corrosion behavior of pure aluminum (99.99%,4N) in chloride solution was investigated using a potentiodynamic polarization technique.It has been found that the open circuit corrosion potential and the pitting potential shifted in the active (negative) direction with increasing gallium content,while corrosion rate and pitting occurrence factor for aluminum increased.The effect of gallium on the degradation of corrosion resistance is rather small while the gallium content is below 0.03mass%.The gallium content should be kept less than 0.03mass% in the pure aluminum.
WANG Jun1，LIN Jin-ping2，SUN Bao-de1
(1.The State Key Laboratory of Metal Matrix Composites,Shanghai Jiao Tong University,Shanghai 200240,China;
2.上海交通大学金属基复合材料国家重点实验室)
摘要:The effect of small amount gallium (up to 0.06%) on the corrosion behavior of pure aluminum (99.99%,4N) in chloride solution was investigated using a potentiodynamic polarization technique.It has been found that the open circuit corrosion potential and the pitting potential shifted in the active (negative) direction with increasing gallium content,while corrosion rate and pitting occurrence factor for aluminum increased.The effect of gallium on the degradation of corrosion resistance is rather small while the gallium content is below 0.03mass%.The gallium content should be kept less than 0.03mass% in the pure aluminum.
关键词:Al-Ga alloy; polarization curve; immersion test; pitting corrosion;
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