George T. Gray

TL;DR: In this article, the role of stacking fault energy (SFE) in deformation twinning and work hardening was systematically studied in Cu and a series of Cu-Al solid-solution alloys.

TL;DR: In this article, the deformation behavior of Ti−6Al−4V at temperatures between 76 and 495 K, strain rates between 0.001 and 3000 s−1, and compressive strains to 0.3 has been investigated.

TL;DR: The influence of increasing strain rate on the mechanical behavior and deformation substructures in metals and alloys that deform predominately by slip is very similar to that seen following quasi-static deformation at increasingly lower temperatures or due to a decrease in stacking-fault energy (γsf) as mentioned in this paper.

TL;DR: In this article, the effects of strain rate, temperature, and tungsten alloying on the yield stress and the strainhardening behavior of tantalum were investigated, and the results substantiate the applicability of these models for describing the high strain-rate deformation of Ta and Ta-W alloys.

TL;DR: In this paper, synthetic foams were fabricated by liquid metal infiltration of commercially pure and 7075 aluminum into preforms of hollow ceramic microspheres, which exhibited peak strength during quasi-static compression ranging from −100 to −230 MPa, while dynamic compression loading showed a 10-30% increase in peak strength magnitude, with strain rate sensitivities similar to those of aluminum-matrix composite materials.