Correlation Between Magnetic Properties and Allotropic Phase Transition of Fe–Co–V Alloy  

作　　者：Saeed Hasani Ali Shafyei Morteza Shamanian Peiman Behjati Hossein Mostaan Timu Juuti Jerzy A.Szpunar 

机构地区：[1]Department of Materials Engineering, Isfahan University of Technology [2]Department of Materials and Metallurgical Engineering,Arak University [3]Centre for Advanced Steels Research, University of Oulu [4]Department of Mechanical Engineering, University of Saskatchewan

出　　处：《Acta Metallurgica Sinica(English Letters)》2015年第8期1055-1058,共4页金属学报（英文版）

摘　　要：In this study, the allotropic phase transition and its effect on the magnetic behavior of Fe Co–7 wt%V alloy were investigated. It was found that c phase is observed in the microstructure in the as-cast condition, and it diminishes after severe cold rolling（90% reduction）. After annealing at temperatures higher than 500 up to 750 ℃, the c phase is observed in the structure, again. But, this phase is disappeared by annealing at temperatures above 750 ℃ due to the formation of vanadium-rich precipitates. Thermocalc software was used in order to elucidate the influence of vanadium percent on the stability of c phase in Fe–Co alloys. Also, magnetic studies showed that the saturation induction is reduced by annealing at temperatures from 500 up to 750 ℃, which is related to the formation of residual non-magnetic γ phase.In this study, the allotropic phase transition and its effect on the magnetic behavior of Fe Co–7 wt%V alloy were investigated. It was found that c phase is observed in the microstructure in the as-cast condition, and it diminishes after severe cold rolling（90% reduction）. After annealing at temperatures higher than 500 up to 750 ℃, the c phase is observed in the structure, again. But, this phase is disappeared by annealing at temperatures above 750 ℃ due to the formation of vanadium-rich precipitates. Thermocalc software was used in order to elucidate the influence of vanadium percent on the stability of c phase in Fe–Co alloys. Also, magnetic studies showed that the saturation induction is reduced by annealing at temperatures from 500 up to 750 ℃, which is related to the formation of residual non-magnetic γ phase.

关 键 词：Fe–Co–V alloy Thermocalc software Magnetic material Phase transformation Electron backscatter diffraction（EBSD） 

分 类 号：TM274[一般工业技术—材料科学与工程]