Deformation heterogeneity and texture in surface severe plastic deformation of copper

作者：Basu Saurabh; Wang Zhiyu; Saldana Christopher

来源：Proceedings of the Royal Society A-Mathematical Physical and Engineering Sciences, 2016, 472(2187): 20150486.

DOI：10.1098/rspa.2015.0486

• severe plastic deformation
• surfaces
• texture

Comprehensive understanding of thermomechanical response and microstructure evolution during surface severe plastic deformation (S2PD) is important towards establishing controllable processing frameworks. In this study, the evolution of crystallographic textures during directional surface mechanical attrition treatment on copper was studied and modelled using the visco-plastic self-consistent framework. In situ high-speed imaging and digital image correlation of surface deformation in circular indentation were employed to elucidate mechanics occurring in a unit process deformation and to calibrate texture model parameters. Material response during directional surface mechanical attrition was simulated using a finite-element model coupled with the calibrated texture model. The crystallographic textures developed during S2PD were observed to be similar to those resultant from uniaxial compression. The implications of these results towards facilitating a processing-based framework to predict deformation mechanics and resulting crystallographic texture in S2PD configurations are briefly discussed.

• 出版日期2016-3-1