Comparison of the structure of grain boundaries and properties of superplastic 40HNU, 47HNM, and 67KN5B alloys

IF 0.4 4区物理与天体物理 Q4 PHYSICS, MULTIDISCIPLINARY

Russian Physics Journal Pub Date : 2025-01-27 DOI:10.1007/s11182-024-03349-0

D. Yerbolatuly, F. M. Noskov, A. E. Makarenko, E. V. Korotkova, G. U. Yerbolatova, G. S. Bektasova, T. D. Perevalov, L. N. Izmaylov, V. N. Cherepanov, A. V. Nyavro, A. K. Kuznetsova, L. I. Kveglis

引用次数: 0

Abstract

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.

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40HNU、47HNM和67KN5B超塑性合金的晶界组织和性能比较

对具有超塑性的47HNM、40HNU和67KN5B合金的组织和性能进行了比较。结果表明，在合金晶界的超塑性变形过程中，形成了具有Frank-Kasper结构的四面体密排团簇体系。簇模型的使用允许将超塑性材料中铁磁性能的表现归因于电子密度的变化。通过对团簇结构的自旋极化电子谱的计算，证实了与实验的定性一致。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Russian Physics Journal PHYSICS, MULTIDISCIPLINARY-

CiteScore

1.00

自引率

50.00%

发文量

208

审稿时长

3-6 weeks

期刊介绍： Russian Physics Journal covers the broad spectrum of specialized research in applied physics, with emphasis on work with practical applications in solid-state physics, optics, and magnetism. Particularly interesting results are reported in connection with: electroluminescence and crystal phospors; semiconductors; phase transformations in solids; superconductivity; properties of thin films; and magnetomechanical phenomena.