Effect of atomic ordering on the role of grain boundaries in the plastic deformation of Ni<Subscript>3</Subscript>Fe alloy期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Effect of atomic ordering on the role of grain boundaries in the plastic deformation of Ni3Fe alloy

Authors:	O. B. Perevalova N. A. Koneva E. V. Konovalova E. V. Kozlov

Affiliation:	1.Institute of Strength Physics and Material Science, Siberian Branch,Russian Academy of Sciences,Tomsk,Russia;2.Tomsk State University of Architecture and Building,Tomsk,Russia;3.Surgut State University,Surgut,Russia

Abstract:	The structure of dislocations and the defect structure of grain boundaries and their parameters in Ni₃Fe alloy with short-range order (SRO) and long–range order (LRO) at different stages of plastic deformation are studied by means of transmission diffraction electron microscopy using thin foils and replicas. It is found that atomic ordering reduces the Σ3 twins plasticizing effect, increases the density of grain boundary defects, slows their annihilation during deformation, and intensifies the microstrains at the triple junctions of grain boundaries.

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