Open AccessOptimization of processing conditions in equal channel angular pressing for superior structure and properties
Author(s) -
Geetha Manjunath
Publication year - 2022
Publication title -
journal of mines, metals and fuels
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.125
H-Index - 11
ISSN - 0022-2755
DOI - 10.18311/jmmf/2021/30121
Subject(s) - pressing , severe plastic deformation , materials science , extrusion , curvature , equal channel angular extrusion , metallurgy , die (integrated circuit) , channel (broadcasting) , pig liver , composite material , geometry , engineering , mathematics , electrical engineering , nanotechnology , nuclear magnetic resonance , physics , enzyme
In the past 25 years, much interest has been paid to the production of ultrafine-grained (UFG) materials due to their superior structure and properties. Equal channel angular extrusion or pressing (ECAE or ECAP) is one of the severe plastic deformation (SPD) technique used to produce UFG materials. Compared to other SPD process, higher strain per pass and higher total productive strain after ‘n’ number of passes is possible in this technique. ECAP process is affected by various processing conditions or parameters. These processing conditions mainly affects the structure and properties produced through this technique. In this article, an effort has been made to provide the effect of each processing parameter on the structure and properties developed through this technique. Various processing conditions like- processing route, channel angle, outer arc of curvature, pressing speed, load and friction, processing temperature and application of back-pressure are critically discussed and effect of these parameters are summarized.