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Home  >  Journal list  >  MATERIALS TRANSACTIONS  >  Vol.45  No.10 (2004)  >  pp.2960-2965

MATERIALS TRANSACTIONS
<<Previous article Vol.45  No.10 (2004)   pp.2960 - 2965 Next article>>

Effect of Initial Grain Orientation on Evolution of Deformed Microstructure in Hot Compressed Ni-30Fe Alloy

Jae-Young Cho1)2), Tadanobu Inoue1), Fuxing Yin1) and Kotobu Nagai1)
1) Steel Research Center, National Institute for Materials Science
2) School of Materials Science and Engineering, Seoul National University Shinrim-dong


An experimental procedure has been developed to investigate systematically the effect of initial grain orientation on the evolution of deformed microstructure in Ni-30Fe alloy. The investigation of identical grains before and after hot deformation made it possible to trace the evolution of microstructure deformed up to 50% at a strain rate of 1/s in a single pass at 1023 K using a hot compression simulator. The localized inhomogeneous shear bands occurred in almost all grains. On the other hand, the near {110} ‹001› grains have undergone fairly homogeneous deformation even after a high equivalent plastic strain of 1.9.


Keyword:
nickel-30 ferrous alloy, shear band, hot deformation, electron back-scattering diffraction pattern, Goss orientation

Received: April 06, 2004
Accepted: August 12, 2004 , Published online: June 24, 2005
Copyright (c) 2005 The Japan Institute of Metals

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