Influence of high-energy ball milling on the solid-phase sintering kinetics of ultrafine-grained heavy tungsten alloy

V. N. Chuvil’deev; A. V. Nokhrin; M. S. Boldin; N. V. Sakharov; G. V. Baranov; V. Yu. Belov; A. A. Popov; E. A. Lantsev; E. S. Smirnova

doi:10.1134/S1028335817090075

Influence of high-energy ball milling on the solid-phase sintering kinetics of ultrafine-grained heavy tungsten alloy

作者: Chuvil’deev V.N.¹, Nokhrin A.V.¹, Boldin M.S.¹, Sakharov N.V.¹, Baranov G.V.², Belov V.Y.², Popov A.A.¹, Lantsev E.A.¹, Smirnova E.S.¹
隶属关系:
1. Lobachevsky Nizhny Novgorod State University
2. Russian Federal Nuclear Center
期: 卷 62, 编号 9 (2017)
页面: 420-424
栏目: Technical Physics
URL: https://journals.rcsi.science/1028-3358/article/view/191848
DOI: https://doi.org/10.1134/S1028335817090075
ID: 191848

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The mechanisms for the sintering of ultrafine-grained 95%W–3.5%Ni–1.5%Fe heavy tungsten alloy powders have been investigated. It has been established that a decrease in the activation energy of grain boundary diffusion and the formation of a nonequilibrium solid solution of nickel and iron in the surface layer of tungsten particles upon high-energy ball milling are responsible for the decrease in optimal sintering temperature.