Influence of adding copper on the properties of the 01970 alloy

The effect of adding copper to the aluminum alloy 01970 on the mechanical properties and resistance to corrosion cracking of its weldment was investigated. Microstructural changes caused by copper addition is discussed. Strips of seven 01970 alloy samples with different Cu content (0.05-0.7%) were q...

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Published inMetal science and heat treatment Vol. 33; no. 11-12; pp. 901 - 904
Main Authors ZAKHAROV, V. V, ROSTOVA, T. D, FISENKO, I. A, SILIO, V. E, EVSTIFEEV, V. S, SEROVA, N. S
Format Journal Article
LanguageEnglish
Published New York, NY Springer 01.12.1991
Subjects
Applied sciences
Corrosion
Corrosion prevention
Exact sciences and technology
Metals. Metallurgy
Corrosion resistance
Copper addition
Scandium addition
Stress corrosion
High strength alloy
Aluminium Magnesium Zinc Alloys
Titanium addition
Zirconium addition
Weld cracking
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Summary:The effect of adding copper to the aluminum alloy 01970 on the mechanical properties and resistance to corrosion cracking of its weldment was investigated. Microstructural changes caused by copper addition is discussed. Strips of seven 01970 alloy samples with different Cu content (0.05-0.7%) were quenched and aged. Welding properties were found to decrease with increasing copper content barring the crack coefficient which increased. Mechanical properties were found to be enhanced by copper addition. Similar was the effect on resistance to corrosion cracking. An addition of up to 0.5% Cu is recommended for high corrosion resistance of the alloy.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0026-0673
1573-8973
DOI:10.1007/BF00777158