Nano Science and Technology Institute
Nanotech 2012 Vol. 1
Nanotech 2012 Vol. 1
Nanotechnology 2012: Advanced Materials, CNTs, Particles, Films and Composites (Volume 1)
Chapter 1: Nanoscale Materials Characterization

Electropulsing induced nanophase decomposition and structural characteristics of film of alloy ZA27

Authors:Y. Zhu, S. To, W.B. Lee
Affilation:Hong Kong Polytechnic University, CN
Pages:136 - 139
Keywords:nanophase decomposition, microstructure, electropulsing, alloy
Abstract:Nanophases appear very stable and hardly decompose completely under conventional thermal aging, because of their strong preferred crystal orienttation. As one of the advanced processes, electropulsing has been recognized for its efficiency in reducing residual stresses in alloys. Also, it is found that electropulsing tremendously accelerate phase transformations by a factor of at least approximately 3600-6000 times. In order to explore completely nanophase decomposition, nanophase decomposition is detected under micro-electropulsing. Details of structural evolution are also studied, accompanying continuous ( Spinodal ) and discontinuoous decompositions of nanophases.
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