|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||2016 Technical Division Student Poster Competition
||SPG-50: Effects of Friction Stir Processing on Toughness of WE43 Thin Sheets
||Shamiparna Das, Rajiv S Mishra, Kevin J Doherty, Kyu C Cho, Bruce Davis
|On-Site Speaker (Planned)
Influence of friction stir processing (FSP) on the toughness values of WE43 alloys was studied. Yield strength and work hardening capacity was determined by mini tensile tests. Kahn type tear tests was undertaken to evaluate the notch toughness of thin WE43 sheets. Failed samples from the toughness tests showed a dimple fracture surface with appreciable microscopic plastic deformation. Digital image correlation (DIC) was utilized to study the deformation fields, and plastic zone size ahead of the crack tip; and provided an estimate of the inherent ability of the alloy to deform in the presence of stress raisers. Crack growth during propagation was also studied using this technique and results have been discussed in the context of its microstructure and static strength-ductility values from tensile tests. These are correlated with the resistance to crack growth under elasto-plastic conditions.
||Definite: None Selected