Shock-loading response of 6061-T6 aluminum-alumina metal-matrix composites

K. Vecchio , G. Gray

The purpose of this research is to systematically study the influence of peak-shock pressure and second-phase reinforcement on the structure/property response of shock-loaded 6061-T6 Al-alumina composites. The reload stress-strain response of monolithic 6061-T6 Al showed no increased shock hardening compared to the unshocked material deformed to an equivalent strain. The reload stress-strain response of the shock-loaded 6061-T6 Al-alumina composites exhibits a lower reload yield strength than the flow stress of the starting composites. Wavespeed measurements of shock-prestrained specimens showed no degradation compared to un-shocked specimens, and reload stress-strain response of the shock-prestrained composites, after resolutionizing and T6 aging, showed that the composites recovered their full as-received stress-strain responses.

Domaines: Articles anciens

K. Vecchio, G. Gray. Shock-loading response of 6061-T6 aluminum-alumina metal-matrix composites. Journal de Physique IV Proceedings, 1994, 04 (C8), pp.C8-231-C8-236. ⟨10.1051/jp4:1994834⟩. ⟨jpa-00253389⟩