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Open AccessArticle

Grain Boundary Evolution of Cold-Rolled FePd Alloy during Recrystallization at Disordering Temperature

1
Department of Materials Science and Engineering, National Cheng-Kung University, Tainan 70101, Taiwan
2
Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
3
Research Center for Physical Properties and Microstructure of Metals, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
*
Author to whom correspondence should be addressed.
Academic Editor: Jung Ho Je
Materials 2015, 8(6), 3254-3267; https://doi.org/10.3390/ma8063254
Received: 20 April 2015 / Revised: 3 May 2015 / Accepted: 26 May 2015 / Published: 4 June 2015
(This article belongs to the Section Structure Analysis and Characterization)
In this study, the grain boundary character and texture of 50% and 90% cold-rolled FePd alloy was investigated during recrystallization at 700 °C. Electron backscatter diffraction (EBSD) measurements were performed on the rolling direction to normal direction section. Kernel average misorientation (KAM) calculated from EBSD measurements was employed to determine the recrystallization fraction. The Avrami exponent n of recrystallization is 1.9 and 4.9 for 50% and 90% cold rolling, respectively. The new formation of texture reveals random texture during the recrystallization process. As annealing time increased, the number of high angle boundary (HAGB) and coincidence site lattice (CSL) increased with consumption of low angle boundary (LAGB). In addition, possible transformations between different grain boundaries are observed here. View Full-Text
Keywords: kernel average misorientation (KAM); electron backscatter diffraction (EBSD); recrystallization; FePd; low angle boundary (LAGB) kernel average misorientation (KAM); electron backscatter diffraction (EBSD); recrystallization; FePd; low angle boundary (LAGB)
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Lin, H.-P.; Chen, D.; Kuo, J.-C. Grain Boundary Evolution of Cold-Rolled FePd Alloy during Recrystallization at Disordering Temperature. Materials 2015, 8, 3254-3267.

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