Comparison of the structure of grain boundaries and properties of superplastic 40HNU, 47HNM, and 67KN5B alloys
Yerbolatuly D. Noskov F.M. Makarenko A.E. Korotkova E.V. Yerbolatova G.U. Bektasova G.S. Perevalov T.D. Izmaylov L.N. Cherepanov V.N. Nyavro A.V. Kuznetsova A.K. Kveglis L.I.
November 2024Springer
Russian Physics Journal
2024#67Issue 112083 - 2087 pp.
A comparison of the structure and properties of 47HNM, 40HNU and 67KN5B alloys possessing superplasticity is performed. It is shown that during superplastic deformation in the grain-boundary layers of these alloys the systems of tetrahedral close-packed clusters with Frank-Kasper structures are formed. The use of cluster models allows attributing the manifestation of ferromagnetic properties in superplastic materials to a change in the electron density. A qualitative agreement with the experiment is confirmed by the calculation of the spectra of spin-polarized electrons performed for the cluster structures.
539.5 , Close-packed structure , Magnetic properties , Spin-polarized electrons , Superplasticity
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East Kazakhstan S. Amanzholov University, Ust-Kamenogorsk, Kazakhstan
Siberian Federal University, Krasnoyarsk, Russian Federation
D. Serikbayev East Kazakhstan Technical University, Ust-Kamenogorsk, Kazakhstan
National Research Tomsk State University, Tomsk, Russian Federation
East Kazakhstan S. Amanzholov University
Siberian Federal University
D. Serikbayev East Kazakhstan Technical University
National Research Tomsk State University
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