Microstructural dependence of magnetic and magnetostrictive properties in Fe-19 at% Ga

作     者：Aliakbar Emdadi Syamak Hossein Nedjad Habib Badri Ghavifekr Majid Kavanlouei Faezeh Alijan Farzad Lahiji Vahid Ramezankhani Aliakbar Emdadi;Syamak Hossein Nedjad;Habib Badri Ghavifekr;Majid Kavanlouei;Faezeh Alijan Farzad Lahiji;Vahid Ramezankhani

作者机构：National University of Science and Technology‘MISiS'Moscow 119049Russia Faculty of Materials EngineeringSahand University of TechnologyTabriz 51335-1996Iran Faculty of Electrical EngineeringSahand University of TechnologyTabriz 51335-1996Iran Department of Materials EngineeringFaculty of EngineeringUrmia UniversityUrmia 165Iran 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2020年第39卷第4期

页      面：413-420页

核心收录：

学科分类：0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0702[理学-物理学] 

主　　题：Fe-Ga alloy Magnetostrictive behavior Structural ordering Magnetic properties 

摘      要：A combination study of magnetic and magnetostrictive properties in directionally cast(DC)(un-annealed)and differently heat-treated Fe-19 at%Ga samples was carried out at room *** cooling leads to an increase in the occupation of[200]easy magnetic ***,structural ordering of Ga atoms into a metastable D03 phase decreases the saturation magnetostriction(λs)and saturation magnetization(Ms),while increases coercivity(Hc).Water quenching suppresses the formation of stable fee ordered phase(L12)and largely preserves disordered bcc single-phase(A2)structure down to room temperature,leading to enhanced magnetostriction and *** cooling promotes the ordering of metastable bcc ordered phase(D03).Magnetic force microscopy(MFM)study exhibits that the water-quenched(WQ)sample consists of a well-aligned stripe domain structure,while irregular maze-like domain structure is observed in furnace-cooled(FC)*** results confirm that in addition to an inhibitory effect of D03 ordering on magnetic domain wall motions,irregular magnetic domains also contribute to decrease in magnetic and magnetostrictive properties of FC sample.