TY - GEN
T1 - Analysis of vacancy agglomeration processes by Matusita's method for B2 FeAl
AU - Yoshimi, Kyosuke
AU - Tsunekane, Masafumi
AU - Maruyama, Kouichi
PY - 2011
Y1 - 2011
N2 - In this study, the exothermic DSC peaks observed in rapidly-solidified Fe-44.9at.%A1 ribbons and water-quenched Fe-48.5at.%A1 single crystals were analyzed by Matusita's method in order to discuss the kinetics of the agglomeration processes of supersaturated vacancies. Both the nucleation and morphological factors, n and m, respectively were approximately 3 for the rapidly solidified ribbons and were approximately 2 for the water-quenched single crystals. Based on the Matusita's idea, the m values suggest the growth of 3-dimensional voids in the rapidly solidified ribbons and the growth of 2-dimensional dislocations loops in the single crystals due to the agglomeration of supersaturated vacancies. In addition, the n values suggest that the nuclei of voids and dislocation loops existed in as-quenched samples. These interpretations are in good agreement with the results of TEM observations.
AB - In this study, the exothermic DSC peaks observed in rapidly-solidified Fe-44.9at.%A1 ribbons and water-quenched Fe-48.5at.%A1 single crystals were analyzed by Matusita's method in order to discuss the kinetics of the agglomeration processes of supersaturated vacancies. Both the nucleation and morphological factors, n and m, respectively were approximately 3 for the rapidly solidified ribbons and were approximately 2 for the water-quenched single crystals. Based on the Matusita's idea, the m values suggest the growth of 3-dimensional voids in the rapidly solidified ribbons and the growth of 2-dimensional dislocations loops in the single crystals due to the agglomeration of supersaturated vacancies. In addition, the n values suggest that the nuclei of voids and dislocation loops existed in as-quenched samples. These interpretations are in good agreement with the results of TEM observations.
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U2 - 10.1557/opl.2011.528
DO - 10.1557/opl.2011.528
M3 - Conference contribution
AN - SCOPUS:80053182801
SN - 9781605112725
T3 - Materials Research Society Symposium Proceedings
SP - 177
EP - 182
BT - Intermetallic-Based Alloys for Structural and Functional Applications
T2 - 2010 MRS Fall Meeting
Y2 - 29 November 2010 through 3 December 2010
ER -