摘要
研究了Al-Zn-In-Sn、Al-Zn-In-Sn-Mg、Al-Zn-In-Mg-Ti和Al-Zn-In-Si等牺牲阳极材料的成分、显微组织及电化学性能。结果表明:各种元素在阳极材料中的实际含量均高于理论设计含量;四种阳极材料的开路电位基本处于稳定状态,但电位有一定的差别。电偶接通时,电流较高,之后电流随着时间的增长逐渐减小,在50 h之后电流都趋向平稳状态。Al-Zn-In-Sn-Mg、Al-Zn-In-Ti-Mg和Al-Zn-In-S的相组织分布较为均匀,均为-αAl加上均匀分布的Al+Zn第二相。
Electrochemical properties, metallographical structure and composition of Al-ZrvIn-Sn, Al-Zn-In- Sn-Mg, Al-Zn-In-Mg-Ti and Al-Zn-In-Si sacrificial anode materials have been studied. The practical contents of alloy elements in sacrificial anode materials were higher than those from theoretical calculation. Open circuit potentials of the Al-Zn-In-Sn, Al-Zn-In-Sn-Mg, Al-Zn-In-Mg-Ti and Al-Zn-In-Si sacrificial anode materials were in the stable state, and showed some difference. The electric current was very high when electric circuit was put through and decreased with increasing time, and became stable after 50 h. Metallographical structure analysis of Al-Zn-In-Sn-Mg, Al-Zn-In-Ti-Mg and Al-Zn-In-Si displayed that the microstructure of the sacrificial anode materials was very uniform with α-Al matrix and secondary phase of Al＋Zn.
出处
《机械工程材料》
CAS
CSCD
北大核心
2005年第12期38-41,共4页
Materials For Mechanical Engineering
基金
云南省经济委员会技术改造基金资助项目(2002JG008)
