Residual stress relaxation and surface hardness of a 2024-t351 aluminium alloy
For design it is generally important to consider the residual stress relaxation. In the study for this contribution, 2024 T351 Aluminium alloy specimens were shot peened at three different shot peening intensities, followed by fatigue tests for two loads. Fatigue tests were divided into two stages....
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| Format: | Article |
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Carl Hanser Verlag
2010
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| Online Access: | http://psasir.upm.edu.my/id/eprint/16531/ http://psasir.upm.edu.my/id/eprint/16531/1/Residual%20stress%20relaxation%20and%20surface%20hardness%20of%20a%202024.pdf |
| _version_ | 1848842988395954176 |
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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 | For design it is generally important to consider the residual stress relaxation. In the study for this contribution, 2024 T351 Aluminium alloy specimens were shot peened at three different shot peening intensities, followed by fatigue tests for two loads. Fatigue tests were divided into two stages. The residual stresses and micro-hardness were measured at initial and after each cyclic load for the three shot peening intensities and the two aforementioned sets of loads. The results showed that the residual stresses and micro-hardness of the specimens were decreased. Moreover, the relaxation depended on the fatigue load amplitude. Residual stress relaxation reached 54% of the initial residual stress while the micro-hardness relaxation reached 39% of the initial micro-hardness. Most of the residual stress relaxation occurred during the first cycle. The relaxation of the initial residual stress is severe when there is low shot peening intensity and high applied load, and the reduction of the micro-hardness is depending on the residual stress relaxation.
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| first_indexed | 2025-11-15T08:07:53Z |
| format | Article |
| id | upm-16531 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T08:07:53Z |
| publishDate | 2010 |
| publisher | Carl Hanser Verlag |
| recordtype | eprints |
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| spelling | upm-165312015-11-24T03:44:10Z http://psasir.upm.edu.my/id/eprint/16531/ Residual stress relaxation and surface hardness of a 2024-t351 aluminium alloy Zaroog, Omar Suliman Ali, Aidy Sahari, Barkawi Zahari, Rizal For design it is generally important to consider the residual stress relaxation. In the study for this contribution, 2024 T351 Aluminium alloy specimens were shot peened at three different shot peening intensities, followed by fatigue tests for two loads. Fatigue tests were divided into two stages. The residual stresses and micro-hardness were measured at initial and after each cyclic load for the three shot peening intensities and the two aforementioned sets of loads. The results showed that the residual stresses and micro-hardness of the specimens were decreased. Moreover, the relaxation depended on the fatigue load amplitude. Residual stress relaxation reached 54% of the initial residual stress while the micro-hardness relaxation reached 39% of the initial micro-hardness. Most of the residual stress relaxation occurred during the first cycle. The relaxation of the initial residual stress is severe when there is low shot peening intensity and high applied load, and the reduction of the micro-hardness is depending on the residual stress relaxation. Carl Hanser Verlag 2010-09 Article NonPeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/16531/1/Residual%20stress%20relaxation%20and%20surface%20hardness%20of%20a%202024.pdf Zaroog, Omar Suliman and Ali, Aidy and Sahari, Barkawi and Zahari, Rizal (2010) Residual stress relaxation and surface hardness of a 2024-t351 aluminium alloy. Materials Testing, 52 (9). pp. 632-639. ISSN 0025-5300 http://www.hanser-elibrary.com/doi/abs/10.3139/120.110171 10.3139/120.110171 |
| spellingShingle | Zaroog, Omar Suliman Ali, Aidy Sahari, Barkawi Zahari, Rizal Residual stress relaxation and surface hardness of a 2024-t351 aluminium alloy |
| title | Residual stress relaxation and surface hardness of a 2024-t351 aluminium alloy |
| title_full | Residual stress relaxation and surface hardness of a 2024-t351 aluminium alloy |
| title_fullStr | Residual stress relaxation and surface hardness of a 2024-t351 aluminium alloy |
| title_full_unstemmed | Residual stress relaxation and surface hardness of a 2024-t351 aluminium alloy |
| title_short | Residual stress relaxation and surface hardness of a 2024-t351 aluminium alloy |
| title_sort | residual stress relaxation and surface hardness of a 2024-t351 aluminium alloy |
| url | http://psasir.upm.edu.my/id/eprint/16531/ http://psasir.upm.edu.my/id/eprint/16531/ http://psasir.upm.edu.my/id/eprint/16531/ http://psasir.upm.edu.my/id/eprint/16531/1/Residual%20stress%20relaxation%20and%20surface%20hardness%20of%20a%202024.pdf |