Deformation banding in a precipitation hardened aluminum alloy during simple shear deformation. (15th March 2019)

• Record Type: Journal Article
• Authors: Muhammad, Waqas; Sabat, Rama K.; Brahme, Abhijit P.; Kang, Jidong; Mishra, Raja K.; Shalchi-Amirkhiz, Babak; Hirsch, Jürgen; Inal, Kaan
• Is Part Of: Scripta materialia. Number 162(2019)
• Page Start: 300
• Page End: 305
• Publication Date: 2019-03-15
• Subjects: Simple shear -- Mechanical properties -- Electron backscatter diffraction (EBSD) -- Coincidence lattice -- Aluminum alloys; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2018.11.032
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: Simple shear deformation of a precipitation hardened aluminum alloy showed the formation of planar deformation bands on a set of parallel {111} planes. Band formation is more profuse in the near {101}[ uvw ] and {111}[ uvw ] oriented grains and their lateral growth is limited by the formation of special coincident site lattice boundaries. Irrespective of the parent grain orientation, these deformation bands are misoriented by approx. 40° with respect to the parent grain. The extended dislocations could not cross-slip, promoting planar slip and the formation of planar deformation bands upon persistent plastic deformation. Graphical abstract: Unlabelled Image