Strain rate and microtexture analysis of rapid-quenched AA6061 friction stir welds produced with tool eccentricity

Luqman Hakim, Ahmad Shah and Hou, Wentao and Razmpoosh, Mohammad Hadi and Walbridge, Scott S. and Gerlich, Adrian P. (2022) Strain rate and microtexture analysis of rapid-quenched AA6061 friction stir welds produced with tool eccentricity. Journal of Materials Research and Technology, 21. pp. 1434-1441. ISSN 2238-7854. (Published)

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The paper investigates the effect of tool eccentricity on the strain rate and microtextures produced in rapid-quenched AA6061 friction stir welds. Thermocouples are embedded in the tool and the thermal cycle are recorded via a data acquisition system. Stir zone grain refinement is observed in all samples, with the eccentric sample having the finest grains (3.18 μm). The strain rate is measured to be between 0.17 and 51.94 s-1, with the eccentric sample experiencing the highest strain rate. The pole figures indicate crystallographic textures shifted approximately 90° when tool eccentricity is employed. The aligned samples have a strong {11-2}[removed] B simple shear texture component, while the eccentric sample shows morphological changes towards a strong {11-1}[removed] A simple shear texture component.

Item Type: Article
Additional Information: Indexed by Scopus
Uncontrolled Keywords: Aluminium; Cryogenic; Friction stir welding; Microtexture; Strain rate; Texture analysis; Thermal history
Subjects: T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TJ Mechanical engineering and machinery
T Technology > TL Motor vehicles. Aeronautics. Astronautics
Faculty/Division: Faculty of Mechanical and Automotive Engineering Technology
Depositing User: Mr Muhamad Firdaus Janih@Jaini
Date Deposited: 14 Feb 2024 07:34
Last Modified: 14 Feb 2024 07:34
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