The effect of gallium and phosphorus on the corrosion behaviour of aluminium in sodium chloride solution

In order to cause shifting of the potential in the negative direction and to simultaneously control dissolution in sodium chloride solutions, aluminum alloys utilized as anodes in electrochemical power sources contain small additions of alloying elements. This can be achieved with highly pure alumin...

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Bibliographic Details
Published inJournal of applied electrochemistry Vol. 15; no. 3; pp. 415 - 420
Main Authors MANCE, A, CEROVIC, D, MIHAJLOVIC, A
Format Journal Article
LanguageEnglish
Published Heidelberg Springer 01.01.1985
Subjects
additives
aluminum alloys
Applied sciences
Corrosion
Corrosion mechanisms
corrosion prevention
Cross-disciplinary physics: materials science; rheology
Exact sciences and technology
gallium
Materials science
Metals, semimetals and alloys
Metals. Metallurgy
phosphorus
Physics
Specific materials
Composition effect
Phosphorus
Gallium
High purity metal
Electrochemical corrosion
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Summary:In order to cause shifting of the potential in the negative direction and to simultaneously control dissolution in sodium chloride solutions, aluminum alloys utilized as anodes in electrochemical power sources contain small additions of alloying elements. This can be achieved with highly pure aluminum alloys. The binary Al-0.2% Ga alloy made of high purity aluminum has a high negative potential (-1570 mV at 10 mA cm super(-2), but also a high corrosion rate. The addition of 0.2% P to the above alloy decreases corrosion. Impurities present in technically pure aluminum considerably affect the anodic and corrosion behavior of the investigated alloys.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0021-891X
1572-8838
DOI:10.1007/BF00615994