INVESTIGATION OF MICROSTRUCTURE AND MECHANICAL PROPERTIES OF 2050 ALUMINUM ALLOY PLATE BY VARIOUS DEFORMATION RATIOS

Date

2023-12-04

Author

Yılmaz Şakar, Tansu

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Nowadays, Al-Li alloys are widely used popular aluminum alloys due to their several advantages compared to conventional alloys. The general perspective of Al-Li alloys is reviewed in this study. The properties of Al-Li alloys are affected by two main reasons; one reason is the degree of deformation during manufacturing operations and the heat treatment process. In this study, the effect of manufacturing methods on material properties is examined by using 50 mm, 90 mm, and 165 mm plates. Hot rolling is one of the manufacturing methods to produce plate materials, and one of the key characteristics of this method is deformation ratios. The thinnest plate has a higher deformation ratio. The primary intention is to reveal the effect of deformation ratios on low cycle fatigue and second-phase properties of 2050-T84 aluminum alloys and the relation between mechanical and microstructural properties. Fractographic, grain size and tensile analysis have been performed within the scope of this study in order to establish a more comprehensive correlation. The biggest difference is obtained in grain size; when comparing thick and thin plate grain sizes, it is observed that the thin plate grain length is more than three times the thick plate. In substance, this study contributes to the knowledge of 2050-T84 aluminum alloy and the understanding of the effect of hot rolling on mechanical properties.

Subject Keywords

Low Cycle Fatigue, Aluminum-Lithium, Second Phase, Deformation Ratio

URI

https://hdl.handle.net/11511/107661

Collections

Graduate School of Natural and Applied Sciences, Thesis