Effect of Zn content on tensile and electrochemical properties of 3003 A1 alloy

• Published in: Transactions of Nonferrous Metals Society of China Vol. 20; no. 11; pp. 2118 - 2123
• Main Author: 朱美俊 丁冬雁 高勇进 陈国桢 李明 毛大立
• Format: Journal Article
• Language: English
• Published: 2010
• Subjects: 3003铝合金; 乙二醇水溶液; 拉伸性能; 极限拉伸强度; 电化学性能; 自腐蚀电位; 透射电镜观察; 锌含量
• ISSN: 1003-6326

The effect of Zn addition on the microstructure, tensile properties and electrochemical properties of as-annealed 3003 Al alloy was investigated through TEM observations, tensile tests and Tafel polarization analysis. High density precipitates are observed in the Zn-containing alloys and the alloy with 1.8% Zn addition also has rod-like precipitates. Tensile test results indicate that Zn has a great effect on tensile strength of 3003 Al alloy. The alloy with 1.5% Zn addition has the highest ultimate tensile strength. The electrochemical results indicate that Zn addition to 3003 Al alloy also has great impact on the corrosion potential of the 3003 A1 alloy in 0.5% NaCl solution and ethylene glycol-water solution. The corrosion potential varies with the Zn content and shifts negatively.