Structure and mechanical properties of Ni3Ge single crystals under severe plastic deformation and heating

Solov’eva, Yu. V.; Pilyugin, V. P.; Starenchenko, S. V.; Tolmachev, T. P.; Старенченко, В. А.

doi:10.3103/s1062873817030340

Cited by 3 publications

(2 citation statements)

References 3 publications

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“…Atomically ordered alloys are of special interest in solving such problems. A great many works have been devoted to studying the behavior of intermetallics (ordered alloys that retain the state of their long-range atomic order up to the melting point) upon plastic deformation [10][11][12][13][14][15]. Ordering alloys, in which the temperature of the order-disorder transition is lower than the melting point, are also of great scientific interest.…”

Section: Introductionmentioning

confidence: 99%

Structure and Mechanical Properties of Ni3Fe Single Crystals after Severe Plastic Deformation

Solov’eva

Starenchenko

Старенченко

et al. 2021

Bull. Russ. Acad. Sci. Phys.

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Atomic ordered Ni 3 Fe single crystals with the L1 2 structure are investigated via X-ray diffraction using synchrotron radiation. A study is performed of the material's structure obtained at room temperature as a result of severe plastic deformation of the single crystals in Bridgman anvils. After compression and subsequent torsion of the samples through different angles, the state atomic ordering changes up to complete disappearance of the L1 2 superstructure, the violation of single crystallinity, and the formation of an ultrafine grained structure.

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Section: Introductionmentioning

confidence: 99%

Structure and Mechanical Properties of Ni3Fe Single Crystals after Severe Plastic Deformation

Solov’eva

Starenchenko

Старенченко

et al. 2021

Bull. Russ. Acad. Sci. Phys.

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“…In the case of single crystals, it is convenient to use a single-crystal structural state to exclude the influence of initial grain boundaries and overall initial orientations, aiding in the understanding of deformation behaviors during HPT. Astafurova et al [10] and Pilyugin et al [11,12] investigated the microstructure evolution of different single-crystalline materials during the HPT process. Kashihara and his co-workers [13] examined the texture evolution in {112} <111> aluminum single crystal processed by severe plastic deformation.…”

Section: Introductionmentioning

confidence: 99%

Study of Anisotropic Plastic Behavior in High Pressure Torsion of Aluminum Single Crystal by Crystal Plasticity Finite Element Method

et al. 2017

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Abstract:In this study, a crystal plasticity finite element method (CPFEM) model has been developed to investigate the anisotropic plastic behavior of (001) aluminum single crystal during high-pressure torsion (HPT). The distributions of equivalent plastic strain and Mises stress recorded on the sample surface are presented. The directional variations of plastic strain and Mises stress with the development of four-fold symmetry pattern are observed along the sample circumference. The crystallographic orientation evolution along the tangential direction is studied, and the corresponding lattice rotation and slip trace are predicted, respectively. The plastic anisotropy mechanism is discussed in detail based on the theory of crystal plasticity. The simulation results reveal that the differences in slip systems activation (dominant slip and multiple slips) are responsible for the anisotropic plastic deformation in HPT.

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Development of Microstructure in Aluminum Single Crystal During Complex Shearing of Extruded Tube

Lejček,

Školáková,

Molnárová

et al. 2024

Metall Mater Trans A

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The development of the microstructure during severe plastic deformation of an aluminum single crystal by complex shearing of the extruded tube (CSET) was studied in this paper. The research has demonstrated that even in a single crystal, an ultrafine-grained microstructure can be obtained during this one-step process. The size of the grains gradually changes and reaches the minimum size on the level of 1 μm at the inner surface of the resulting tube. Simultaneously, preferential orientations in individual parts of the deformed sample change in a complex way. The main mechanism affecting the final microstructure is continuous dynamic recrystallization. The microhardness also exhibits a gradient character with higher values at the inner surface of the tube compared to its center. Graphical Abstract

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Structure and mechanical properties of Ni3Ge single crystals under severe plastic deformation and heating

Cited by 3 publications

References 3 publications

Structure and Mechanical Properties of Ni3Fe Single Crystals after Severe Plastic Deformation

Structure and Mechanical Properties of Ni3Fe Single Crystals after Severe Plastic Deformation

Study of Anisotropic Plastic Behavior in High Pressure Torsion of Aluminum Single Crystal by Crystal Plasticity Finite Element Method

Development of Microstructure in Aluminum Single Crystal During Complex Shearing of Extruded Tube

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