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Home  >  Journal list  >  MATERIALS TRANSACTIONS  >  Vol.45  No.7 (2004)  >  pp.2316-2325

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Stored Energy and Taylor Factor Relation in an Al-Mg-Mn Alloy Sheet Worked by Continuous Cyclic Bending

Yoshimasa Takayama1)2) and Jerzy A. Szpunar2)
1) Department of Mechanical Systems Engineering, Utsunomiya University
2) Department of Metallurgical Engineering, McGill University

The relation between the stored energy and the Taylor factor (TF) has been investigated using the SEM/EBSP analysis in an Al-Mg-Mn alloy sheet worked by the continuous cyclic bending (CCB). The analysis reveals that the stored energy is high for the high TF region, whereas a significant increase of the stored energy with the decrease of the Taylor factor appears in the vicinity of the minimum TF value of 2. This observation is discussed using the Schmid factor calculated. Further, the local strain accommodation during deformation is analyzed for grains of different orientations. The stored energy is derived from the calculation based on the kernel average misorientation (KAM).

stored energy, Taylor factor, continuous cyclic bending, misorientation, electron back scatter diffraction pattern (EBSP) technique, Schmid factor, aluminium-magnesium-manganese alloy

Received: March 29, 2004
Accepted: May 24, 2004 , Published online: June 24, 2005
Copyright (c) 2005 The Japan Institute of Metals



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