Effect of Al and La Doping on the Structure and Magnetostrictive Properties of Fe<sub>73</sub>Ga<sub>27</sub> Alloy
The changes of microstructure, magnetostriction properties and hardness of the Fe<sub>73</sub>Ga<sub>27−x</sub>Al<sub>x</sub> alloy and (Fe<sub>73</sub>Ga<sub>27−x</sub>Al<sub>x</sub>)<sub>99.9</sub>La<sub>0.1&...
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MDPI AG
2022-12-01
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| Online Access: | https://www.mdpi.com/1996-1944/16/1/12 |
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| author | Jinchao Du Pei Gong Xiao Li Shaoqi Ning Wei Song Yuan Wang Hongbo Hao |
| author_facet | Jinchao Du Pei Gong Xiao Li Shaoqi Ning Wei Song Yuan Wang Hongbo Hao |
| author_sort | Jinchao Du |
| collection | DOAJ |
| description | The changes of microstructure, magnetostriction properties and hardness of the Fe<sub>73</sub>Ga<sub>27−x</sub>Al<sub>x</sub> alloy and (Fe<sub>73</sub>Ga<sub>27−x</sub>Al<sub>x</sub>)<sub>99.9</sub>La<sub>0.1</sub> alloy (x = 0, 0.5, 1.5, 2.5, 3.5, 4.5) were studied by doping Al into the Fe<sub>73</sub>Ga<sub>27</sub> and (Fe<sub>73</sub>Ga<sub>27</sub>)<sub>99.9</sub>La<sub>0.1</sub> alloy, respectively. The results show that both the Fe<sub>73</sub>Ga<sub>27−x</sub>Al<sub>x</sub> alloy and (Fe<sub>73</sub>Ga<sub>27−x</sub>Al<sub>x</sub>)<sub>99.9</sub>La<sub>0.1</sub> alloy are dominated by the A2 phase, and the alloy grains are obvious columnar crystals with certain orientations along the water-cooled direction. A proportion of Al atoms replaced Ga atoms, which changed the lattice constant of the alloy, caused lattice distortion, and produced vacancy effects which affected the magnetostriction properties. La atoms were difficult to dissolve in the matrix alloy which made the alloy grains smaller and enhanced the orientation along the (100) direction, resulting in greater magneto-crystalline anisotropy and greater tetragonal distortion, which is conducive to improving the magnetostriction properties. Fe<sub>73</sub>Ga<sub>24.5</sub>Al<sub>2.5</sub> alloy has a saturation magnetostrictive strain of 74 ppm and a hardness value of 268.064 HV, taking into account the advantages of saturated magnetostrictive strain and high hardness. The maximum saturation magnetostrictive strain of the (Fe<sub>73</sub>Ga<sub>24.5</sub>Al<sub>2.5</sub>)<sub>99.9</sub>La<sub>0.1</sub> alloy is 115 ppm and the hardness is 278.096 HV, indicating that trace La doping can improve the magnetostriction properties and deformation resistance of Fe-Ga alloy, which provides a new design idea for the Fe-Ga alloy, broadening their application in the field of practical production. |
| first_indexed | 2024-03-11T09:55:40Z |
| format | Article |
| id | doaj.art-1b880e64ef4d42b3a8fc0397d5fb903b |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T09:55:40Z |
| publishDate | 2022-12-01 |
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| record_format | Article |
| series | Materials |
| spelling | doaj.art-1b880e64ef4d42b3a8fc0397d5fb903b2023-11-16T15:45:51ZengMDPI AGMaterials1996-19442022-12-011611210.3390/ma16010012Effect of Al and La Doping on the Structure and Magnetostrictive Properties of Fe<sub>73</sub>Ga<sub>27</sub> AlloyJinchao Du0Pei Gong1Xiao Li2Shaoqi Ning3Wei Song4Yuan Wang5Hongbo Hao6School of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051, ChinaSchool of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051, ChinaSchool of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051, ChinaInner Mongolia Autonomous Region Strategic Research Center for Science and Technology, Hohhot 010051, ChinaSchool of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051, ChinaSchool of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051, ChinaBaotou Rare Earth Research Institute, State Key Laboratory of Baiyunebo Rare Earth Resources Research and Comprehensive Utilization, Baotou 014010, ChinaThe changes of microstructure, magnetostriction properties and hardness of the Fe<sub>73</sub>Ga<sub>27−x</sub>Al<sub>x</sub> alloy and (Fe<sub>73</sub>Ga<sub>27−x</sub>Al<sub>x</sub>)<sub>99.9</sub>La<sub>0.1</sub> alloy (x = 0, 0.5, 1.5, 2.5, 3.5, 4.5) were studied by doping Al into the Fe<sub>73</sub>Ga<sub>27</sub> and (Fe<sub>73</sub>Ga<sub>27</sub>)<sub>99.9</sub>La<sub>0.1</sub> alloy, respectively. The results show that both the Fe<sub>73</sub>Ga<sub>27−x</sub>Al<sub>x</sub> alloy and (Fe<sub>73</sub>Ga<sub>27−x</sub>Al<sub>x</sub>)<sub>99.9</sub>La<sub>0.1</sub> alloy are dominated by the A2 phase, and the alloy grains are obvious columnar crystals with certain orientations along the water-cooled direction. A proportion of Al atoms replaced Ga atoms, which changed the lattice constant of the alloy, caused lattice distortion, and produced vacancy effects which affected the magnetostriction properties. La atoms were difficult to dissolve in the matrix alloy which made the alloy grains smaller and enhanced the orientation along the (100) direction, resulting in greater magneto-crystalline anisotropy and greater tetragonal distortion, which is conducive to improving the magnetostriction properties. Fe<sub>73</sub>Ga<sub>24.5</sub>Al<sub>2.5</sub> alloy has a saturation magnetostrictive strain of 74 ppm and a hardness value of 268.064 HV, taking into account the advantages of saturated magnetostrictive strain and high hardness. The maximum saturation magnetostrictive strain of the (Fe<sub>73</sub>Ga<sub>24.5</sub>Al<sub>2.5</sub>)<sub>99.9</sub>La<sub>0.1</sub> alloy is 115 ppm and the hardness is 278.096 HV, indicating that trace La doping can improve the magnetostriction properties and deformation resistance of Fe-Ga alloy, which provides a new design idea for the Fe-Ga alloy, broadening their application in the field of practical production.https://www.mdpi.com/1996-1944/16/1/12Al additionLa additionmicrostructuremicrohardnessmagnetostriction |
| spellingShingle | Jinchao Du Pei Gong Xiao Li Shaoqi Ning Wei Song Yuan Wang Hongbo Hao Effect of Al and La Doping on the Structure and Magnetostrictive Properties of Fe<sub>73</sub>Ga<sub>27</sub> Alloy Materials Al addition La addition microstructure microhardness magnetostriction |
| title | Effect of Al and La Doping on the Structure and Magnetostrictive Properties of Fe<sub>73</sub>Ga<sub>27</sub> Alloy |
| title_full | Effect of Al and La Doping on the Structure and Magnetostrictive Properties of Fe<sub>73</sub>Ga<sub>27</sub> Alloy |
| title_fullStr | Effect of Al and La Doping on the Structure and Magnetostrictive Properties of Fe<sub>73</sub>Ga<sub>27</sub> Alloy |
| title_full_unstemmed | Effect of Al and La Doping on the Structure and Magnetostrictive Properties of Fe<sub>73</sub>Ga<sub>27</sub> Alloy |
| title_short | Effect of Al and La Doping on the Structure and Magnetostrictive Properties of Fe<sub>73</sub>Ga<sub>27</sub> Alloy |
| title_sort | effect of al and la doping on the structure and magnetostrictive properties of fe sub 73 sub ga sub 27 sub alloy |
| topic | Al addition La addition microstructure microhardness magnetostriction |
| url | https://www.mdpi.com/1996-1944/16/1/12 |
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