Equal channel angular pressings

V. Skripnyuk, E. Buchman, E. Rabkin, Y. Estrin, M. Popov, S. Jorgensen, The effect of equal channel angular pressing on hydrogen storage properties of a eutectic Mg-Ni alloy, J. Alloys Compd. 436 (2007) 99-106. 

Figure 2.3 Illustrations of equal channel angular pressing (ECAP) technique (a) schematic of ECAP process and (b) scanning electron microscopy (SEM) and transmission electron microscopy (TEM) images showing nanostructures of Mg after ECAP processing.

Iwahashi Y, Wang J, Horita Z, Nemoto M, Langdon TG. Principle of equal-channel angular pressing for the processing of ultra-fine grained materials. Scr Mater... 

Kim, TN Balakrishnan, A Lee, BC Kim, WS Smetana, K Park, JK Panigrahi, BB. In vitro biocompatibility of equal channel angular pressed (ECAP) titanium. Biomedical Materials, 2007, 2, S117-S120. 

Song et al. [76] measured the mass loss rate in 3.5% NaCl for HP Mg as cast and after being subjected to a number of equal channel angular pressings (ECAP). They found that the corrosion rate increased with number of ECAP passes. Based on the work of Song and Xu [75], the increase in corrosion rate with ECAP passes observed by Song et al. [76] is consistent with surface pick-up of Fe-containing particles in each ECAP pass. 

Equal channel angular press [ECAP] is a novel process that has been used to consolidate metal particles [25-27]. The severe shear deformation involved in the ECAP would disrupt the oxide layer on the metal surface and create good bonding between metal particles to form bulk materials with full density and excellent mechanical properties. The method also provides advantages of retaining the non-equilibrium structures of particles due to shorter processing time and lower temperature normally involved in the process as compared to conventional metal fabrication. 

Kim, H. S. [2001]. Finite element analysis of equal channel angular pressing using a cornor die. Mater. Sci. Eng., A315,122-128. 

Zhang, X., Wu, X., Gao, D., Xla, K. [2012]. Bulk cellulose plastic materials from processing cellulose powder using back pressure equal channel angular pressing, Carbohydr. Polym., 87,2470-2476. 

Characteristics of face-centered cubic metals processed by equal-channel angular pressing, N. Q. Chinh, J. Gubicza, and T. G. Langdon, J. Mater. ScL, 2007, 42, 1594. 

Micro structural characteristics of pure gold processed by equal-channel angular pressing, J. Gubicza, N. 

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