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The Natural Aging Effect On Hardenability In Al-Mg-Si: A Complex Interaction Between Composition And Heat Treatment Parameters, Alex Poznak, Violet Thole, Paul G. Sanders
The Natural Aging Effect On Hardenability In Al-Mg-Si: A Complex Interaction Between Composition And Heat Treatment Parameters, Alex Poznak, Violet Thole, Paul G. Sanders
Michigan Tech Publications
The technological relevance of Al-Mg-Si alloys has been rapidly growing over the last decade. Of particular interest to current and future applications is the problematic negative effect of prior natural aging on subsequent artificial age hardening. The influence of natural aging is dependent on both processing and compositional variables and has origins that are far from well-understood. This work examines the hardenability of 6000 series alloys under a wide range of conditions, paying particular attention to the natural aging effect. Experimental variables include alloy composition (Mg + Si, Mg/Si), cooling rate after solutionization, and duration of prior natural aging. Hardenability …