Influence of retrogression and re-ageing on the mechanical and corrosion properties of 7039 aluminium alloy
The effect of T6 and retrogression and re-ageing (RRA) treatments on the corrosion and mechanical properties of a 7039 Al alloy was examined. T6- and RRA-tempered alloys exhibited a similar intergranular corrosion resistance for a retrogression time of 3 min at 220 °C. The results revealed that an R...
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Published in | International journal of materials research Vol. 95; no. 1; pp. 14 - 17 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
De Gruyter
20.12.2021
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Subjects | |
Online Access | Get full text |
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Summary: | The effect of T6 and retrogression and re-ageing (RRA) treatments on the corrosion and mechanical properties of a 7039 Al alloy was examined. T6- and RRA-tempered alloys exhibited a similar intergranular corrosion resistance for a retrogression time of 3 min at 220 °C. The results revealed that an RRA-tempered alloy (3 min retrogression at 220 °C followed by re-ageing) exhibited a higher hardness and strength and a lower ductility and toughness than a T6-tempered alloy with a significant improvement in the stress corrosion cracking resistance. |
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ISSN: | 1862-5282 2195-8556 |
DOI: | 10.3139/ijmr-2004-0004 |