Influence of production parameters of sintering on the structure and properties of VK5 hard alloy made of tungsten carbide SHS powder

• Published in: Russian journal of non-ferrous metals Vol. 55; no. 6; pp. 599 - 605
• Main Authors: Zaitsev, A. A., Vershinnikov, V. I., Panov, V. S., Levashov, E. A., Borovinskaya, I. P., Konyashin, I. Yu, Rupasov, S. I., Patsera, E. I., Shumenko, V. N., Zamulaeva, E. I.
• Format: Journal Article
• Language: English
• Published: Heidelberg Allerton Press 01.11.2014; Springer Nature B.V
• Subjects: Alloy powders; Cemented carbides; Chemistry and Materials Science; Crack propagation; Hardness; Materials Science; Metallic Materials; Nonferrous metals; Self-propagating synthesis; Sintering (powder metallurgy); Theory and Processes of Forming and Sintering of Powder Materials; Tungsten carbide; self-propagating high-temperature synthesis; hard alloy; sintering; tungsten carbide; structure; properties
• ISSN: 1067-8212; 1934-970X
• DOI: 10.3103/S1067821214060273

The features of sintering of the WC-Co hard alloy of the VK5 brand using the feedstock of tungsten carbide powder fabricated by self-propagating high-temperature synthesis (SHS) are investigated. It is established that the physicochemical processes occurring when sintering hard alloys are similar to sintering processes of standard alloys made of traditional tungsten carbide powders. The hard alloy produced in this study possesses high hardness, strength, and crack resistance, which are characteristic of quasi-nanocrystalline materials.