Isochronal annealing studies of deformed FeSi alloys using positron annihilation spectroscopy期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Isochronal annealing studies of deformed FeSi alloys using positron annihilation spectroscopy

Authors:	K.M. Mostafa F. Gonzalez Camara P. Rodriguez Calvillo E. De Grave Y. Houbaert

Affiliation:	^a Department of Materials Science and Engineering, Ghent University-Technologiepark 903, 9052 Ghent, Belgium ^b Department of Physics and Astronomy, Ghent University, Proeftuinstraat 86, 9000 Ghent, Belgium ^c CTM-Technologic Centre, Area of Materials Forming Processes, Manresa, Barcelona, Spain

Abstract:	A series of FeSi samples were deformed to a thickness reduction of 16%. They were isochronally annealed for one hour at different temperatures and characterized by the Doppler broadening of the annihilation radiation (DBAR) measured at room temperature. Optical microscopy (OM) is used to investigate the microstructure of the deformed samples before and after annealing. The S parameter data show a decrease with the increase of the annealing temperature. At 973 K a significant decrease sets in. The microstructures of the alloys, investigated by OM, show that recrystallization is completed at 1173 K.

Keywords:	A. FeSi Electrical Steel D. Annealing E. Positron annihilation spectroscopy E. Light optical microscopy
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