Effect of Pre-Ageing on the Age Hardening Response of Cryorolled Al-Mg-Si Alloy
The present work investigates about the effect of pre-ageing on hardening behavior of Al-Mg-Si alloys processed by cryorolling and its age hardening behavior. Ageing conditions were examined at natural ageing for 2days and pre-ageing at 100 °C, 130°C and 170 °C for 4 hours, 2 hours and 30 minutes respectively. The observations revealed that, the pre-ageing before cryorolling is useful to enhance the dislocation density during cryorolling. However artificial ageing of cryorolled samples is not influenced much with pre-ageing. It is revealed that, maturing at room temperature of CR samples for 30 days has resulted better hardening response during artificial ageing.
Dr. P. Nageswara Rao, Dr. R. Kotaiah and Dr. D. Venkateswarlu
M. Hussain et al., "Effect of Pre-Ageing on the Age Hardening Response of Cryorolled Al-Mg-Si Alloy", Applied Mechanics and Materials, Vol. 877, pp. 137-148, 2018