|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Deformation and Transitions at Interfaces
||A Computational Study of the Deformation Response of Cu/Nb Multilayer Composites
||Jason Mayeur, Irene J Beyerlein
|On-Site Speaker (Planned)
In this talk we present a computational study of the thermomechanical response of Cu/Nb multilayered lamellar composites produced by accumulative roll-bonding (ARB). ARB is a manufacturing process capable of producing bulk multilayered lamellar composites with layer thicknesses ranging from mm to nm. ARB lamellar composites are distinct from those produced by physical vapor deposition in terms of the specimen scale and layer thicknesses that are attainable as well as the predominant texture and heterophase interface character. Both local and nonlocal constitutive frameworks are employed to assess the role of lattice curvature and geometrically necessary dislocations on the deformation response as a function of layer thickness and grain size. The simulation results are compared to recent experimental measurements in an effort to sort out the relative contributions of slip transmission and lattice curvature induced hardening on the overall strength of the materials.