Evaluation of Hydrogen Damage in Aluminum 7075 Alloy after Dissolution Annealing and Two-stage Aging

This study aims at investigation of the hydrogen damage after dissolution annealing and two-stage aging in aluminum 7075 alloy. Dissolution annealing was performed at 500 to 575 °C for duration of 1 to 20 hours. The first stage of two-stage aging was performed at 180, 200 and 220 °C...

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Main Authors: S. Gholipour, S.R. Hosseini, R. Shoja Razavi
Format: Article
Language:fas
Published: Isfahan University of Technology 2016-06-01
Series:Journal of Advanced Materials in Engineering
Subjects:
Online Access:http://jame.iut.ac.ir/browse.php?a_code=A-10-1-691&slc_lang=en&sid=1
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author S. Gholipour
S.R. Hosseini
R. Shoja Razavi
author_facet S. Gholipour
S.R. Hosseini
R. Shoja Razavi
author_sort S. Gholipour
collection DOAJ
description This study aims at investigation of the hydrogen damage after dissolution annealing and two-stage aging in aluminum 7075 alloy. Dissolution annealing was performed at 500 to 575 °C for duration of 1 to 20 hours. The first stage of two-stage aging was performed at 180, 200 and 220 °C for 30 minutes. The second stage was carried out at 120 and 150 °C for 10, 15 and 20 hours. Structural characteristics and chemical composition of precipitates was investigated using SEM and EDS methods, respectively. Reduction of the tensile strength in T6 process after hydrogenation reached to 150 MPa, although it decreased only, about 50 MPa in the two-stage process. Overall, tensile strength after hydrogen charging was significantly increased in the two-stage aging compared to the T6 process.
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spelling doaj.art-4c8510387e6a43ef94f695ffa0f0a82d2022-12-21T22:23:17ZfasIsfahan University of TechnologyJournal of Advanced Materials in Engineering1025-28512423-57332016-06-01351110Evaluation of Hydrogen Damage in Aluminum 7075 Alloy after Dissolution Annealing and Two-stage AgingS. Gholipour0S.R. Hosseini1R. Shoja Razavi2 Faculty of Materials Engineering, Malek Ashtar University of Technology, Shahin Shahr, Iran Faculty of Materials Engineering, Malek Ashtar University of Technology, Shahin Shahr, Iran Faculty of Materials Engineering, Malek Ashtar University of Technology, Shahin Shahr, Iran This study aims at investigation of the hydrogen damage after dissolution annealing and two-stage aging in aluminum 7075 alloy. Dissolution annealing was performed at 500 to 575 °C for duration of 1 to 20 hours. The first stage of two-stage aging was performed at 180, 200 and 220 °C for 30 minutes. The second stage was carried out at 120 and 150 °C for 10, 15 and 20 hours. Structural characteristics and chemical composition of precipitates was investigated using SEM and EDS methods, respectively. Reduction of the tensile strength in T6 process after hydrogenation reached to 150 MPa, although it decreased only, about 50 MPa in the two-stage process. Overall, tensile strength after hydrogen charging was significantly increased in the two-stage aging compared to the T6 process.http://jame.iut.ac.ir/browse.php?a_code=A-10-1-691&slc_lang=en&sid=1Two-stage aging Dissolution annealing Aluminum 7075 Hydrogen damage
spellingShingle S. Gholipour
S.R. Hosseini
R. Shoja Razavi
Evaluation of Hydrogen Damage in Aluminum 7075 Alloy after Dissolution Annealing and Two-stage Aging
Journal of Advanced Materials in Engineering
Two-stage aging
Dissolution annealing
Aluminum 7075
Hydrogen damage
title Evaluation of Hydrogen Damage in Aluminum 7075 Alloy after Dissolution Annealing and Two-stage Aging
title_full Evaluation of Hydrogen Damage in Aluminum 7075 Alloy after Dissolution Annealing and Two-stage Aging
title_fullStr Evaluation of Hydrogen Damage in Aluminum 7075 Alloy after Dissolution Annealing and Two-stage Aging
title_full_unstemmed Evaluation of Hydrogen Damage in Aluminum 7075 Alloy after Dissolution Annealing and Two-stage Aging
title_short Evaluation of Hydrogen Damage in Aluminum 7075 Alloy after Dissolution Annealing and Two-stage Aging
title_sort evaluation of hydrogen damage in aluminum 7075 alloy after dissolution annealing and two stage aging
topic Two-stage aging
Dissolution annealing
Aluminum 7075
Hydrogen damage
url http://jame.iut.ac.ir/browse.php?a_code=A-10-1-691&slc_lang=en&sid=1
work_keys_str_mv AT sgholipour evaluationofhydrogendamageinaluminum7075alloyafterdissolutionannealingandtwostageaging
AT srhosseini evaluationofhydrogendamageinaluminum7075alloyafterdissolutionannealingandtwostageaging
AT rshojarazavi evaluationofhydrogendamageinaluminum7075alloyafterdissolutionannealingandtwostageaging