Densification of SiC Particle Reinforced W–Ni–Fe Heavy Alloy Composites Through Conventional and Spark Plasma Sintering

Chaurasia, Jitender K.; Muthuchamy, A.; Patel, Paridh; Annamalai, A. Raja

doi:10.1007/s12666-017-1041-x

Cited by 5 publications

(2 citation statements)

References 26 publications

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“…The opportunity of sintering the materials at very high heating rates (up to 2500 • C/min) is an important feature of SPS technology, which allows for reducing the grain growth rate [24,28]. The fine-grained HTAs obtained using SPS simultaneously have high strength and hardness [29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45] (Table A1; see Appendix A).…”

Section: Introductionmentioning

confidence: 99%

Effect of High-Energy Ball Milling Time on the Density and Mechanical Properties of W-7%Ni-3%Fe Alloy

Нохрин

Малехонова

Чувильдеев

et al. 2023

Metals

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The present work was aimed at the investigation of the effect of high-energy ball milling (HEBM) time on the sintering kinetics, structure, and properties of the heavy tungsten alloy (HTA) W-7%Ni-3%Fe. The HTA samples were obtained from nanopowders (20–80 nm) using conventional liquid-phase sintering (LPS) in hydrogen and using spark plasma sintering (SPS) in vacuum. The HTA density was shown to depend non-monotonously on the HEBM time that originates from the formation of nonequilibrium solid solutions in the W-Ni-Fe systems during HEBM. The SPS kinetics of the HTA nanopowders was shown to have a two-stage character, the intensity of which depends on the Coble diffusion creep rate and on the intensity of diffusion of the tungsten atoms in the crystal lattice of the γ-phase. The kinetics of sintering of the initial submicron powders has a single-stage character originating from the intensity of the grain boundary diffusion in the γ-phase. The dependencies of the hardness and of the yield strength on the grain sizes were found to obey the Hall–Petch relation. The hardness, strength, and dynamic strength in the compression tests of the fine-grained tungsten alloys obtained using SPS and LPS were studied.

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Section: Introductionmentioning

confidence: 99%

Effect of High-Energy Ball Milling Time on the Density and Mechanical Properties of W-7%Ni-3%Fe Alloy

Нохрин

Малехонова

Чувильдеев

et al. 2023

Metals

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show abstract

“…feature of SPS technology, which allows reducing the grain growth rate [23,27]. The fine-grained HTAs obtained by SPS have simultaneously high strength and hardness [28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44] (Table A1, see Appendix A).…”

Section: Introductionmentioning

confidence: 99%

Effect of High Energy Ball Milling Time on the Density and Mechanical Properties of W-7%Ni-3%Fe Alloy

Нохрин¹,

Малехонова²,

Чувильдеев³

et al. 2023

Preprint

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The present work was aimed at the investigation of effect of High Energy Ball Milling (HEBM) time on the sintering kinetics, structure, and properties of heavy tungsten alloy (HTA) W-7%Ni-3%Fe. The HTA samples were obtained from the nanopowders (20-80 nm) by conventional liquid phase sintering (LPS) in hydrogen and by Spark Plasma Sintering (SPS) in vacuum. The HTA density was shown to depend on the HEBM time non-monotonously that originates from the formation of non-equilibrium solid solutions in the W-Ni-Fe systems during HEBM. The SPS kinetics of the HTA nanopowders was shown to have a two-stage character, the intensity of which depends on the Coble diffusion creep rate and on the intensity of diffusion of the tungsten atoms in the crystal lattice of the -phase. The kinetics of sintering of the initial submicron powders have a single-stage character originating from the intensity of the grain boundary diffusion in the -phase. The dependencies of the hardness and of the yield strength on the grain sizes were found to obey the Hall-Petch relation. The hardness, strength, and dynamic strength in the compression tests of the fine-grained tungsten alloys obtained by SPS and LPS were studied.

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Effect of Y2O3 Addition on the Microstructure, Wear Resistance, and Corrosion Behavior of W-4.9Ni-2.1Fe Heavy Alloy

Zhang

Zhu

Zhang

et al. 2019

J. of Materi Eng and Perform

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Densification of SiC Particle Reinforced W–Ni–Fe Heavy Alloy Composites Through Conventional and Spark Plasma Sintering

Cited by 5 publications

References 26 publications

Effect of High-Energy Ball Milling Time on the Density and Mechanical Properties of W-7%Ni-3%Fe Alloy

Effect of High-Energy Ball Milling Time on the Density and Mechanical Properties of W-7%Ni-3%Fe Alloy

Effect of High Energy Ball Milling Time on the Density and Mechanical Properties of W-7%Ni-3%Fe Alloy

Effect of Y2O3 Addition on the Microstructure, Wear Resistance, and Corrosion Behavior of W-4.9Ni-2.1Fe Heavy Alloy

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