Observation of annealing twin nucleation at triple lines in nickel during grain growth - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Acta Materialia Année : 2015

Observation of annealing twin nucleation at triple lines in nickel during grain growth

(1) , (2) , (3) , (3) , (3) , (3) , (2) , (2) , (1) , (1)
1
2
3

Résumé

Three-dimensional near-field high-energy X-ray diffraction microscopy has been used to observe the formation of new twinned grains in high purity Ni during annealing at 800 °C. In the fully recrystallized microstructure annealed at 800 °C, twinned grains form along triple lines. Both the grain boundary character and the grain boundary dihedral angles were measured before and after the twin formed. These measurements make it possible to show that although each new twinned grain increases the total grain boundary area, it reduces the total grain boundary energy.

Dates et versions

hal-01186079 , version 1 (24-08-2015)

Identifiants

Citer

Brian Lin, Yuan Jin, Christopher M. Hefferan, Shiu Fai Li, Jonathan Lind, et al.. Observation of annealing twin nucleation at triple lines in nickel during grain growth. Acta Materialia, 2015, 99, pp.63-68. ⟨10.1016/j.actamat.2015.07.041⟩. ⟨hal-01186079⟩
143 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook Twitter LinkedIn More