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Aluminium Alloy
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Ulises Alfaro Mercado – One of the best experts on this subject based on the ideXlab platform.
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friction stir welding of titanium Alloy tial6v4 to Aluminium Alloy aa2024 t3
Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, 2009Co-Authors: Ulrike Dressle, Gerhard Iallas, Ulises Alfaro MercadoAbstract:Abstract Titanium Alloy TiAl6V4 and Aluminium Alloy 2024-T3 were successfully joined by friction stir welding. Microstructure, hardness and tensile strength of the butt joint were investigated. The weld nugget exhibits a mixture of fine recrystallized grains of Aluminium Alloy and titanium particles. Hardness profile reveals a sharp decrease at titanium/Aluminium interface and evidence of microstructural changes due to welding on the Aluminium side. The ultimate tensile strength of the joint reached 73% of AA2024-T3 base material strength.
Ulrike Dressle – One of the best experts on this subject based on the ideXlab platform.
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friction stir welding of titanium Alloy tial6v4 to Aluminium Alloy aa2024 t3
Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, 2009Co-Authors: Ulrike Dressle, Gerhard Iallas, Ulises Alfaro MercadoAbstract:Abstract Titanium Alloy TiAl6V4 and Aluminium Alloy 2024-T3 were successfully joined by friction stir welding. Microstructure, hardness and tensile strength of the butt joint were investigated. The weld nugget exhibits a mixture of fine recrystallized grains of Aluminium Alloy and titanium particles. Hardness profile reveals a sharp decrease at titanium/Aluminium interface and evidence of microstructural changes due to welding on the Aluminium side. The ultimate tensile strength of the joint reached 73% of AA2024-T3 base material strength.
I. Roman – One of the best experts on this subject based on the ideXlab platform.
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Study of hydrogen embrittlement in Aluminium Alloy 2024 in the longitudinal direction
Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, 1990Co-Authors: F. Zeides, I. RomanAbstract:Abstract A comparative study of the hydrogen effect on overall ductility in the rolling direction of Aluminium Alloy 2024 in the T351 temper condition and Aluminium Alloy 2024 aged at 190°C for 7 h has been conducted. Hydrogen-pre-charged and hydrogen-free sheet tensile specimens have been tested at either a constant or an alternating strain rate. It has been found that internal hydrogen caused severe degradation in overall plastic elongation of Aluminium Alloy 2024-T351 and that in artificially aged Alloy 2024 the embrittlement was observed only after the onset of necking. It has been observed that hydrogen-induced modification of the strain rate dependence of flow stress by reducing dynamic hardening in Alloy 2024-T351 aged at 190°C for 7 h and enhancing dynamic softening in Alloy 2024-T351. It is suggested that hydrogen embrittlement is caused by hydrogen-induced enhancement of plastic deformation localization that mainly affects non-uniform plastic deformation.