汽车用Cu-25Zn-5Al铜基合金氧化行为研究  

Study on Oxidation Behavior of Copper-based Alloy Cu-25Zn-5Al for Automobile

作　　者：侯士元[1] Hou Shiyuan(Zibo Vocational Institute,Zibo,Shandong 255314)

机构地区：[1]淄博职业学院,山东淄博255314

出　　处：《包头职业技术学院学报》2019年第1期14-17,共4页Journal of Baotou Vocational & Technical College

摘　　要：通过对铜基合金Cu-25Zn-5Al进行金相、光学显微镜、扫描电镜等分析,研究它在700～900℃的空气中的腐蚀行为。结果显示,其腐蚀动力学在空气中皆遵循抛物线型定律,氧化速率随温度上升而加快;它的氧化性质优良,其氧化生成物为少量的氧化锌(Zn O)及氧化铜铝(ZnAl2O4),这是铜基合金Cu-25Zn-5Al氧化速率降低的主因,能够有效防止铜基合金进一步氧化。In this paper,the corrosion behavior of copper-based alloy Cu-25Zn-5Al in air at 700~900 C is studied by metallographic,optical microscopy and scanning electron microscopy.The results show that the corrosion kinetics follows the parabolic law in the air,the oxidation rate is accelerated with the rise of the temperature,and its oxidation property is excellent.Its oxidation product is a small amount of Zinc Oxide(ZnO)and copper oxide(ZnAl2O4),which is the main cause of the decrease in the oxidation rate of the copper-based alloy Cu-25Zn-5Al and effectively prevent copper-based alloy being further oxidized.

关 键 词：铜基合金 铜锌合金 Cu-25Zn-5Al 抗氧化 

分 类 号：TG146.11[一般工业技术—材料科学与工程]