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Título

The effect of heterogeneous deformation on the hot deformation of WE54 magnesium alloy

Autor Carsí, Manuel; Bartolomé, Mª. J.; Rieiro, Ignacio; Peñalba, F.; Ruano, Oscar Antonio
Palabras clave Hot compression
Garofalo equation
Efficiency and stability maps
Recrystallization
Magnesium alloy
Fecha de publicación 2014
EditorElsevier
Citación MATERIALS & DESIGN 58: 30- 35 (2014)
ResumenThe high temperature forming behavior of WE54 magnesium alloy is studied by means of compression and tension tests. Metallographic investigation was performed to evaluate the heterogeneous deformation of the compression samples at high temperature. Dynamic recrystallization was found to be related to the amount of deformation in the various regions of the compression sample. The compression data allowed determination of the Garofalo equation describing the hot deformation behavior. The parameters n and Q, stress exponent and activation energy, of this equation were 4.4 and 237. kJ/mol respectively. This equation was used to predict the formability behavior for the hot rolling process and also to determine the maximum forming efficiency and stability of the alloy. The optimum rolling temperature was found to be 520. °C. © 2014 Elsevier Ltd.
URI http://hdl.handle.net/10261/113945
DOI10.1016/j.matdes.2014.01.038
Identificadoresdoi: 10.1016/j.matdes.2014.01.038
issn: 0261-3069
Aparece en las colecciones: (CENIM) Artículos
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