Structure and magnetic properties of the Nd9.5Fe84.5B6 alloy subjected to severe plastic deformation and annealing
- Authors: Menushenkov V.P.1, Shchetinin I.V.1, Chernykh S.V.1, Savchenko A.G.1, Gorshenkov M.V.1, Zhukov D.G.1
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Affiliations:
- National University of Science and Technology MISiS
- Issue: Vol 2017, No 10 (2017)
- Pages: 801-806
- Section: Advanced Materials and Technologies
- URL: https://journals.rcsi.science/0036-0295/article/view/171742
- DOI: https://doi.org/10.1134/S0036029517100123
- ID: 171742
Cite item
Abstract
The effect of severe plastic deformation (SPD) by torsion and subsequent annealing on the structure and magnetic properties of the cast Nd9.5Fe84.5B6 alloy is studied. SPD by torsion is shown to lead to partial amorphization of the Nd2Fe14B phase and the precipitation of α-Fe; subsequent annealing results in the crystallization of the amorphous phase and the formation of a nanocomposite Nd2Fe14B/α-Fe structure. After SPD by torsion at 20 revolutions and annealing at 873 K, the (101) texture is formed; in this case, the coercive force is Hc = 360 kA/m and the maximum energy product is (BH)max = 166 kJ/m3. The residual magnetization and the squareness ratio of the hysteretic loop of the textured alloy decrease as the ambient temperature decreases.
About the authors
V. P. Menushenkov
National University of Science and Technology MISiS
Author for correspondence.
Email: menushenkov@gmail.com
Russian Federation, Leninskii pr. 4, Moscow, 119049
I. V. Shchetinin
National University of Science and Technology MISiS
Email: menushenkov@gmail.com
Russian Federation, Leninskii pr. 4, Moscow, 119049
S. V. Chernykh
National University of Science and Technology MISiS
Email: menushenkov@gmail.com
Russian Federation, Leninskii pr. 4, Moscow, 119049
A. G. Savchenko
National University of Science and Technology MISiS
Email: menushenkov@gmail.com
Russian Federation, Leninskii pr. 4, Moscow, 119049
M. V. Gorshenkov
National University of Science and Technology MISiS
Email: menushenkov@gmail.com
Russian Federation, Leninskii pr. 4, Moscow, 119049
D. G. Zhukov
National University of Science and Technology MISiS
Email: menushenkov@gmail.com
Russian Federation, Leninskii pr. 4, Moscow, 119049