2. Introducing the ECAP technique
Historically, ECAP was invented by Vladimir Segal and his collaborators
in the 1970s in Minsk, in the former Soviet Union, and described by
Segal himself in 1981
. Instead of ECAP, some authors use the term ECAE, where
the letter "E" stands for Extrusion. Four possible translations of
ECAP are used: (i) equal-area angled extrusion, (ii) deviated channel
deformation, (iii) angled channel extrusion and (iv) angled channel
extrusion.
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Introducing the ECAP technique