Origin of inhomogenous behavior during equal channel angular pressing

The influence of the outer angle, friction conditions and deformation dead zone (DDZ) on inhomogenous behavior during equal channel angular pressing was investigated by a grid experiment and finite element analysis. For a given strain-hardening metal, shear deformation is not obviously found near th...

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Veröffentlicht in:	Scripta materialia 2006-06, Vol.54 (11), p.1865-1869
Hauptverfasser:	Wei, Wei, Nagasekhar, A.V., Chen, Guang, Tick-Hon, Yip, Wei, Kun Xia
Format:	Artikel
Sprache:	eng
Schlagworte:	Angles (geometry) Applied sciences Equal channel angular pressing Exact sciences and technology Finite element analysis Friction Inhomogenous behavior Inlets Mathematical analysis Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology Metals. Metallurgy Origins Severe plastic deformation Shear deformation Strain hardening
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Beschreibung
Zusammenfassung:	The influence of the outer angle, friction conditions and deformation dead zone (DDZ) on inhomogenous behavior during equal channel angular pressing was investigated by a grid experiment and finite element analysis. For a given strain-hardening metal, shear deformation is not obviously found near the inner and outer surface of the die inlet. The larger the outer angle, the smaller the DDZ area. It is concluded that the origin of inhomogenous behavior is the die geometry, namely, the inner angle and the outer angle.
ISSN:	1359-6462 0956-716X 1872-8456
DOI:	10.1016/j.scriptamat.2006.02.026