Bifurcation in deformation behavior of Cu and Ta by accumulative roll-bonding at high temperature Academic Article uri icon

abstract

  • © 2017 Cu and Ta are co-deformed at 673 K by the accumulative roll-bonding technique up to 8 passes. At an equivalent von Mises strain (ɛvm) of ~ 2 the deformation is bifurcated into shear accommodated by the ‘soft’ Cu, and plane-strain by the ‘hard-but-ductile’ Ta. This is attributed to transitions occurring collectively at ɛvm ~ 2 in crystallographic texture, partitioning of recovery and recrystallization, and the nature of interfaces as elucidated by orientation relations, Hall-Petch behavior and manifestation of instabilities at higher strain.

altmetric score

  • 0.25

author list (cited authors)

  • Mungole, T., Mansoor, B., Ayoub, G., & Field, D. P.

citation count

  • 5

publication date

  • July 2017