Effect of Mechanical Activation Time on the Density of Fine-Grained Tungsten Alloy 90W–7Ni–3Fe, Obtained by Spark Plasma Sintering

Author:

Chuvil’deev V. N.1,Nokhrin A. V.1,Boldin M. S.1,Lantsev E. A.1,Sakharov N. V.1

Affiliation:

1. Lobachevsky State University of Nizhny Novgorod

Abstract

Abstract—The influence of the high-energy mechanical activation (HMA) time on the kinetics of solid-phase Spark Plasma Sintering (SPS) and the microstructure of a heavy tungsten alloy 90W–7Ni–3Fe has been studied. The density of the alloy 90W–7Ni–3Fe nonmonotonically, with a minimum, depends on the time of the HMA. The kinetics of the SPS of nanopowders has a two-stage character; the sintering intensity depends on the rate of Coble creep and the intensity of diffusion of W atoms in the crystal lattice of the nickel-based gama-phase.

Publisher

The Russian Academy of Sciences

Reference22 articles.

1. Green E.C., Jones D.J., Pitkin W.R. Developments in high-density alloys // Proc. Symposium of Powder Metallurgy. 1954. V. 58. P. 253–256.

2. Поварова К.Б., Макаров П.В., Ратнер А.Д., Заварзина Е.К., Волков К.В. Тяжелые сплавы типа ВНЖ-90. I. Влияние легирования и режимов получения порошков вольфрама на их строение, микроструктуру и свойства спеченных сплавов // Металлы. 2002. № 4. С. 39–48.

3. Ravi Kiran U., Sambasiva Rao A., Sankaranarayana M., Nandy T.K. Swaging and heat treatment studies on sintered 90W–6Ni–2Fe–2Co tungsten heavy alloy // Int. J. Refr. Met. Hard Mater. 2012. V. 33. P. 113–121.

4. Yu Y., Zhang W., Chen Y., Wang E. Effect of swaging on microstructure and mechanical properties of liquid-phase sintered 93W–4.9(Ni,Co)–2.1Fe alloy // Int. J. Refr. Met. Hard Mater. 2014. V. 44. P. 103–108.

5. Грязнов М.Ю., Самохин А.В., Чувильдеев В.Н., Фадеев А.А., Алексеев Н.В., Шотин С.В., Дорофеев А.А. Получение композитного порошка системы W–Ni–Fe со сферической формой частиц и исследование возможности его использования в технологии послойного лазерного сплавления // ФХОМ. 2022. № 3. С. 54–66.

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