Processing metals by severe plastic deformation
University of Strathclyde (STRATH), 75 Montrose Street, Glasgow G1 1XJ, United Kingdom
Severe plastic deformation (SPD) is one of the methods of obtaining sub-microcrystalline structure in different crystallographic systems (e.g. aluminium, iron, magnesium). SPD causes the creation of micrometer and sub-micrometer sized subgrains in the original coarse grains of the material. The mechanism responsible for this effect is still under investigation, however, it is believed that short and long-range intersecting shear bands, produced by plastic deformation, play a major role. Sufficiently large deformation leads to a distinct structure of dislocation-free and highly misoriented fine grains.
Presentation: invited oral at E-MRS Fall Meeting 2003, Symposium G, by Andrzej Rosochowski
See On-line Journal of E-MRS Fall Meeting 2003
Submitted: 2003-04-17 16:39 Revised: 2009-06-08 12:55