Micro-hardness and residual stress relaxation of 2024 T351 aluminum alloy
The residual stress relaxation can be divided into two stages: The first cycle relaxation and the following cycles. In both stages, residual stress relaxed considerably from the initial state. The aim of this study is to investigate the residual stress relaxation and microhardness reduction after fi...
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| Language: | English |
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Trans Tech Publications
2011
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| Online Access: | http://psasir.upm.edu.my/id/eprint/15632/ http://psasir.upm.edu.my/id/eprint/15632/1/Micro-hardness%20and%20residual%20stress%20relaxation%20of%202024%20T351%20aluminum%20alloy.pdf |
| _version_ | 1848842731766415360 |
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| author | Zaroog, Omar Suliman Ali, Aidy Sahari, Barkawi Zahari, Rizal |
| author_facet | Zaroog, Omar Suliman Ali, Aidy Sahari, Barkawi Zahari, Rizal |
| author_sort | Zaroog, Omar Suliman |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The residual stress relaxation can be divided into two stages: The first cycle relaxation and the following cycles. In both stages, residual stress relaxed considerably from the initial state. The aim of this study is to investigate the residual stress relaxation and microhardness reduction after first and second cyclic load. A 2024 T351 aluminum alloy specimens were shot peened into three shot peening intensities. The fatigue test for first and second cyclic loads of two loads 15.5 kN and 30 kN was performed. The initial residual stress and residual stress after the first and second cycle stress was measured for the three shot peening intensities using X-ray diffraction. Microhardness test was performed for each specimen. The results showed that the residual stress relaxation for first cycle was reached more than 40% of the initial residual stress and it depends on the load amplitude, and microhardness decreased for the first cycle reached 22% and also it depended on load amplitude. |
| first_indexed | 2025-11-15T08:03:48Z |
| format | Article |
| id | upm-15632 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T08:03:48Z |
| publishDate | 2011 |
| publisher | Trans Tech Publications |
| recordtype | eprints |
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| spelling | upm-156322020-05-15T01:32:28Z http://psasir.upm.edu.my/id/eprint/15632/ Micro-hardness and residual stress relaxation of 2024 T351 aluminum alloy Zaroog, Omar Suliman Ali, Aidy Sahari, Barkawi Zahari, Rizal The residual stress relaxation can be divided into two stages: The first cycle relaxation and the following cycles. In both stages, residual stress relaxed considerably from the initial state. The aim of this study is to investigate the residual stress relaxation and microhardness reduction after first and second cyclic load. A 2024 T351 aluminum alloy specimens were shot peened into three shot peening intensities. The fatigue test for first and second cyclic loads of two loads 15.5 kN and 30 kN was performed. The initial residual stress and residual stress after the first and second cycle stress was measured for the three shot peening intensities using X-ray diffraction. Microhardness test was performed for each specimen. The results showed that the residual stress relaxation for first cycle was reached more than 40% of the initial residual stress and it depends on the load amplitude, and microhardness decreased for the first cycle reached 22% and also it depended on load amplitude. Trans Tech Publications 2011 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/15632/1/Micro-hardness%20and%20residual%20stress%20relaxation%20of%202024%20T351%20aluminum%20alloy.pdf Zaroog, Omar Suliman and Ali, Aidy and Sahari, Barkawi and Zahari, Rizal (2011) Micro-hardness and residual stress relaxation of 2024 T351 aluminum alloy. Key Engineering Materials, 462-463. pp. 343-348. ISSN 1013-9826; ESSN: 1662-9795 https://www.scientific.net/KEM.462-463.343 10.4028/www.scientific.net/KEM.462-463.343 |
| spellingShingle | Zaroog, Omar Suliman Ali, Aidy Sahari, Barkawi Zahari, Rizal Micro-hardness and residual stress relaxation of 2024 T351 aluminum alloy |
| title | Micro-hardness and residual stress relaxation of 2024 T351 aluminum alloy |
| title_full | Micro-hardness and residual stress relaxation of 2024 T351 aluminum alloy |
| title_fullStr | Micro-hardness and residual stress relaxation of 2024 T351 aluminum alloy |
| title_full_unstemmed | Micro-hardness and residual stress relaxation of 2024 T351 aluminum alloy |
| title_short | Micro-hardness and residual stress relaxation of 2024 T351 aluminum alloy |
| title_sort | micro-hardness and residual stress relaxation of 2024 t351 aluminum alloy |
| url | http://psasir.upm.edu.my/id/eprint/15632/ http://psasir.upm.edu.my/id/eprint/15632/ http://psasir.upm.edu.my/id/eprint/15632/ http://psasir.upm.edu.my/id/eprint/15632/1/Micro-hardness%20and%20residual%20stress%20relaxation%20of%202024%20T351%20aluminum%20alloy.pdf |