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Title
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The developing of the novel Al-Mg-Sc-Zr-Ag alloy: Achieving corrosion resistance-strength synergy via optimized processing routes
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Type
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Refereeing
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Keywords
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Al-Mg-Sc-Zr-Ag alloy; Mechanical properties; Dislocation cells; Corrosion resistance
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Abstract
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This study reveals improved corrosion resistance and mechanical properties of Al-Mg- Sc-Zr-Ag alloys through optimized processing routes. Compared with conventional T6 treatment, the pre-aging combined with pre-deformation before aging enhances the strength and corrosion resistance of the alloy via the mechanism between dislocations and nano-scale precipitates. The non-recrystallization annealing ( NRA) further improves the corrosion resistance owing to the high density of dislocation cells and low-angle grain boundaries (LAGBs). Meanwhile, the NRA-treated alloy maintains mechanical properties comparable to that of the T6-treated alloy. This work provides a novel method and theoretical basis for achieving corrosion resistance-strength synergy of aluminum alloys.
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Researchers
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Mehdi Montazeripour (Referee)
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