A Study on surface modification of al7075-t6 alloy against fretting fatigue phenomenon

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Abstract

Aircraft engines, fuselage, automobile parts, and energy saving strategies in general have promoted the interest and research in the field of lightweight materials, typically on alloys based on aluminum. Aluminum alloy itself does not have suitable wear resistance; therefore, it is necessary to enhance surface properties for practical applications, particularly when aluminum is in contact with other parts. Fretting fatigue phenomenon occurs when two surfaces are in contact with each other and one or both parts are subjected to cyclic load. Fretting drastically decreases the fatigue life of materials. Therefore, investigating the fretting fatigue life of materials is an important subject. Applying surface modification methods is anticipated to be a supreme solution to gradually decreasing fretting damage. In this paper, the authors would like to review methods employed so far to diminish the effect of fretting on the fatigue life of Al7075-T6 alloy. The methods include deep rolling, shot peening, laser shock peening, and thin film hard coatings. The surface coatings techniques are comprising physical vapor deposition (PVD), hard anodizing, ion-beam-enhanced deposition (IBED), and nitriding. © 2014 E. Mohseni et al.

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Mohseni, E., Zalnezhad, E., Sarhan, A. A. D., & Bushroa, A. R. (2014). A Study on surface modification of al7075-t6 alloy against fretting fatigue phenomenon. Advances in Materials Science and Engineering. Hindawi Publishing Corporation. https://doi.org/10.1155/2014/474723

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