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Philosophical Magazine Volume 101, 2021 - Issue 6
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Part A: Materials Science

Influences of growth rate on microstructures and magnetostrictive properties of Fe83Ga17 directional solidification alloys

Xuan Zhaoa Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, School of Physics and Electronic Information, Inner Mongolia Normal University, Hohhot, People’s Republic of ChinaView further author information
,
Xiao Tiana Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, School of Physics and Electronic Information, Inner Mongolia Normal University, Hohhot, People’s Republic of ChinaCorrespondence[email protected]
View further author information
,
Zhanquan Yaob School of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot, People’s Republic of ChinaCorrespondence[email protected]
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,
Lijuan Zhaoa Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, School of Physics and Electronic Information, Inner Mongolia Normal University, Hohhot, People’s Republic of ChinaView further author information
,
Rui Wanga Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, School of Physics and Electronic Information, Inner Mongolia Normal University, Hohhot, People’s Republic of ChinaView further author information
&
Hongbo Haoc State Key Laboratory of Baiyunobo Rare Earth Resource Researches and Comprehensive Utilization, Baotou Research Institute of Rare Earths, Baotou, People’s Republic of ChinaView further author information
Pages 643-656 | Received 18 Aug 2020, Accepted 02 Dec 2020, Published online: 27 Dec 2020
 
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ABSTRACT

In this paper, the influence of growth rates on the microstructure and magnetostrictive properties of Fe83Ga17 directional solidification alloys were investigated. The microstructure and magnetic properties of Fe83Ga17 as-cast and directional solidification samples were examined by X-ray diffraction (XRD), scanning electron microscopy (SEM), electron backscattered diffraction (EBSD), optical microscopy (OM) and strain gauge method. The highest value of magnetostriciton (∼240 ppm) was found in the 30 mm/min growth rated sample. The increased magnetostriction is attribute to the formation of monoclinic Fe6Ga5 phase, endogenous grown columnar crystals and the larger Schmid Factor value.

Acknowledgements

This work is supported by the National Natural Science Foundation of China (51661027) and the Natural Science Foundation of Inner Mongolia (2019MS05002, 2020MS05075).

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work is supported by the National Natural Science Foundation of China (51661027) and the Natural Science Foundation of Inner Mongolia (2019MS05002, 2020MS05075).

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