Influence of retrogression and re-ageing on the mechanical and corrosion properties of 7039 aluminium alloy

Uǧras Saǧlam; Murat Baydoǧan; Harun Mindivan; E. Sabri Kayali; Hüseyin Çimenoǧlu

doi:10.3139/146.017913

Influence of retrogression and re-ageing on the mechanical and corrosion properties of 7039 aluminium alloy

Uǧras Saǧlam, Murat Baydoǧan, Harun Mindivan, E. Sabri Kayali, Hüseyin Çimenoǧlu^*

^*Corresponding author for this work

Department of Metallurgical and Materials Engineering

Istanbul Technical University

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	14-17
Number of pages	4
Journal	International Journal of Materials Research
Volume	95
Issue number	1
DOIs	https://doi.org/10.3139/146.017913
Publication status	Published - Jan 2004

Keywords

Aluminium alloy 7039
Corrosion
Re-ageing
Retrogression
Stress corrosion

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abstract = "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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AU - Saǧlam, Uǧras

AU - Baydoǧan, Murat

AU - Mindivan, Harun

AU - Kayali, E. Sabri

AU - Çimenoǧlu, Hüseyin

PY - 2004/1

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N2 - 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.

AB - 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.

KW - Aluminium alloy 7039

KW - Corrosion

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KW - Retrogression

KW - Stress corrosion

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Influence of retrogression and re-ageing on the mechanical and corrosion properties of 7039 aluminium alloy

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Keywords

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