室温轧制及固溶处理对Al-Ga-Mg-Mn-Bi阳极合金电化学性能的影响

Q4 Chemical Engineering 腐蚀科学与防护技术 Pub Date : 2014-07-29 DOI:10.11903/1002.6495.2013.262
李登辉, 文九巴, 贺俊光, 高军伟
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引用次数: 0

Abstract

Influence of solution treatment and cool rolling deformation on the microstructure and electrochemical performance of the Al-Ga-Mg-Mn-Bi anode alloy was investigated by measuring the impedance spectroscopy, polarization curve, free-corrosion rate, etc. The results show that: in comparison with the cast alloy, the quantity of the second phase, the free-corrosion rate and the hydrogen evolution rate of the solution-treated alloy were greatly reduced, while the amount and size of corrosion pits were also reduced with a negative shift of its potential of constant- current discharge; after cool rolling deformation the alloy exhibits a rather uniform corrosion morphology with small pits and also a negative shift of its potential of constant-current discharge.
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室温轧制及固溶处理对Al-Ga-Mg-Mn-Bi阳极合金电化学性能的影响
通过阻抗谱、极化曲线、自由腐蚀速率等测试,研究了固溶处理和冷轧变形对Al-Ga-Mg-Mn-Bi阳极合金微观组织和电化学性能的影响。结果表明:与铸态合金相比,固溶处理合金的第二相数量、自由腐蚀速率和析氢速率显著降低,腐蚀坑的数量和尺寸减小,恒流放电电位呈负移;经冷轧变形后,合金的腐蚀形貌较为均匀,蚀坑较小,且恒流放电电位呈负位移。
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来源期刊
腐蚀科学与防护技术
腐蚀科学与防护技术 Chemical Engineering-Chemical Engineering (all)
CiteScore
0.60
自引率
0.00%
发文量
2399
期刊介绍: Corrosion Science and Protection Technology is approved by the General Administration of Press and Publication of the State Council, the Chinese Academy of Sciences, the Chinese Academy of Sciences Institute of Metals organized by the domestic and international public circulation of national periodicals metal surface treatment academic journals. The journal is a professional and technical publication. It reports the scientific and technological achievements in the field of metal corrosion and protection, and publishes research reports, reviews, technical reports, research briefs, failure analysis, experience exchange, etc. The readers are engaged in the field of metal corrosion and protection. The target readers are scientific and technological personnel engaged in metal corrosion and protection and teachers and students of related professional colleges and universities. Corrosion Science and Protection Technology is indexed in CSCD, CSTPCD, CA,MA,SA and other authoritative databases.
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