Datum
2022-07-25Schlagwort
620 Ingenieurwissenschaften AluminiumlegierungThermomechanikAushärtungAluminiumbauelementZugfestigkeitDehnungLuft- und RaumfahrtindustrieFahrzeugindustrieAlterungMetadata
Zur Langanzeige
Aufsatz
Effect of Combined Forming and Aging Processes on the Mechanical Properties of the Precipitation-Hardenable High-Strength Aluminum Alloys AA6082 and AA7075
Zusammenfassung
The recently increasing demand for hot stamped aluminum components in the automotive and aerospace industries explains the necessity of designing efficient and resource-conserving thermomechanical processes. Within the thermo-mechanical process, the simultaneous effect of deformation and temperature accelerate the precipitation kinetics. Therefore, this study focuses on the combined effect of forming and aging processes on the mechanical properties of high-strength aluminum alloys AA6082 and AA7075. For this aim, two different thermo-mechanical aging process strategies after solution heat treatment and quenching in a water-dilutable polymer quenchant are proposed. The superpositioning of the forming step is either performed at the beginning or continuously during the aging treatment. The resulting mechanical properties are characterized using tensile tests. With increasing the plastic elongation, there is an increase in yield and tensile strength, which is accompanied by a significant decrease in strain after failure. Both thermo-mechanical aging strategies reveal mechanical properties similar to the conventional T6 peak aged condition with a significant reduction in process time from 24 h to 5 h.
Zitierform
In: Metals Volume 12 / Issue 8 (2022-07-25) eissn:2075-4701Förderhinweis
Gefördert durch den Publikationsfonds der Universität KasselZitieren
@article{doi:10.17170/kobra-202211127099,
author={Lotz, Steffen and Scharifi, Emad and Weidig, Ursula and Steinhoff, Kurt},
title={Effect of Combined Forming and Aging Processes on the Mechanical Properties of the Precipitation-Hardenable High-Strength Aluminum Alloys AA6082 and AA7075},
journal={Metals},
year={2022}
}
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2022-11-12T09:22:14Z 2022-11-12T09:22:14Z 2022-07-25 doi:10.17170/kobra-202211127099 http://hdl.handle.net/123456789/14242 Gefördert durch den Publikationsfonds der Universität Kassel eng Namensnennung 4.0 International http://creativecommons.org/licenses/by/4.0/ thermo-mechanical aging high strength aluminum alloys precipitation-hardening 620 Effect of Combined Forming and Aging Processes on the Mechanical Properties of the Precipitation-Hardenable High-Strength Aluminum Alloys AA6082 and AA7075 Aufsatz The recently increasing demand for hot stamped aluminum components in the automotive and aerospace industries explains the necessity of designing efficient and resource-conserving thermomechanical processes. Within the thermo-mechanical process, the simultaneous effect of deformation and temperature accelerate the precipitation kinetics. Therefore, this study focuses on the combined effect of forming and aging processes on the mechanical properties of high-strength aluminum alloys AA6082 and AA7075. For this aim, two different thermo-mechanical aging process strategies after solution heat treatment and quenching in a water-dilutable polymer quenchant are proposed. The superpositioning of the forming step is either performed at the beginning or continuously during the aging treatment. The resulting mechanical properties are characterized using tensile tests. With increasing the plastic elongation, there is an increase in yield and tensile strength, which is accompanied by a significant decrease in strain after failure. Both thermo-mechanical aging strategies reveal mechanical properties similar to the conventional T6 peak aged condition with a significant reduction in process time from 24 h to 5 h. open access Lotz, Steffen Scharifi, Emad Weidig, Ursula Steinhoff, Kurt doi:10.3390/met12081250 Aluminiumlegierung Thermomechanik Aushärtung Aluminiumbauelement Zugfestigkeit Dehnung Luft- und Raumfahrtindustrie Fahrzeugindustrie Alterung publishedVersion eissn:2075-4701 Issue 8 Metals Volume 12 false 1250
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