|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Deformation and Transitions at Interfaces
||L-45: Controlling the Deviation of Twins in Inconel 600 Alloy by Hot Rolling
||Sandeep Sahu, Shashank Shekhar, Pallavi Gupta
|On-Site Speaker (Planned)
Twinning related ‘grain boundary engineering’ is a well-established technique in order to improve functional and mechanical properties. However, even in a material having high fraction of twin boundaries, property like resistance to intergranular degradation decreases when the deviation (from the exact disorientation) in twin boundaries increases. Hence, the objective of the present work was to achieve high coincidence site lattice (CSL) boundaries fraction with less deviated twin boundaries. Low strain (4-24%) was imparted to Inconel 600 alloy by hot rolling in order to minimize the generation of highly deviated twins. Deformed material was given a short annealing treatment of 10 minutes to control grain growth. The results showed the increment in total CSL fraction (3≤Σ≤29) as high as 77% having a dominant fraction from twin (Σ3) boundaries (64%). Also, 93% of Σ3 boundaries were found to lie within a very low deviation value of 0.87°.