7049 AL-Alloy Fatigue Behavior under Black Paint Laser Peening

Alalkawi , Hussian J.; Saeed , Madlool Awad; Khenyab , Ali Yousuf

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dc.contributor.author	Alalkawi , Hussian J.
dc.contributor.author	Saeed , Madlool Awad
dc.contributor.author	Khenyab , Ali Yousuf
dc.date.accessioned	2017-04-25T07:57:15Z
dc.date.available	2017-04-25T07:57:15Z
dc.date.issued	2016
dc.identifier.citation	Alalkawi , Hussian J. . 7049 AL-Alloy Fatigue Behavior under Black Paint Laser Peening \ Hussian J. Alalkawi ,Ali Yousuf Khenyab ,Madlool Awad Saeed .- Journal of Engineering and Computer Sciences (ECS) .- vol 17 , no2.- 2016.- article	en_US
dc.identifier.issn	ISSN 1605-427X
dc.identifier.uri	http://repository.sustech.edu/handle/123456789/16654
dc.description	article	en_US
dc.description.abstract	Black Paint Laser (bPL) peening technique is currently applied to engineering components due to their improvements of fatigue behavior and economic advantages. In the current work, the experimental examinations of bPL peening, which aims to understanding the fatigue behavior of bPL surface treated bars was carried out. The application of bPL was associated with significant extension of fatigue life and strength. This extension is due to compressive residual stresses (CRS) generating from peening process. A series of fully rotating bending fatigue tests was conducted at room temperature using 7049 Aluminum alloy. Improvements in fatigue life and strength for constant and cumulative fatigue were demonstrated. Finally, the fatigue strength of 7049 Aluminum alloy at 107 cycles increased by 53% and cumulative fatigue life improved by factors of 1.55 and 1.787 for Low-high sequence and high-low sequence due to bPL treatment respectively.	en_US
dc.description.sponsorship	Sudan University of Science and Technology	en_US
dc.language.iso	en_US	en_US
dc.publisher	Sudan University of Science and Technology	en_US
dc.subject	Aluminum alloy, black Paint Laser (bPL), fatigue strength, residual stress cumulative fatigue life, Laser shock peening (LSP), fatigue crack growth (FCG).	en_US
dc.title	7049 AL-Alloy Fatigue Behavior under Black Paint Laser Peening	en_US
dc.type	Article	en_US