An Experimental Study of the Effect of Hardening on Plastic Deformation in Metallic Single Crystals
by
Crone, W. C., and Shield, T. W
in
Journal of the Mechanics and Physics of Solids, to appear, 2003.
Category: Journal Article
Keywords: fracture, single crystal, plasticity
Click here to request an electronic copy of this paper.
Abstract:
Experiments to measure the effect of hardening on the plastic deformation field near a notch tip in metallic single crystals were conducted. The specimens were cut from pure Cu and a CuBe alloy FCC single crystals. The CuBe alloy was selected because its initial hardness and rate of hardening can be modified by heat treatment. The Vickers hardness of the specimens ranged from 87 to 353 kg/sq-mm, while the hardening exponents ranged between 10 and 4.5. The experimental results were compared to analytical and numerical solutions in the literature. This comparison shows that the inclusion of elastic regions in the analytical solutions and anisotropic hardening in the numerical solutions results in better agreement with the experiments.
This entry has been accessed 1183 times.