Comparative study of WC-based hard alloys fabrication via spark plasma sintering using Co, Fe, Ni, Cr, and Ti binders

Advanced anticorrosive coatings based on tungsten, its alloys and compounds

“…Создание сплавов, обладающих наряду с высокой твердостью и износоустойчивостью также и достаточной прочностью, было осуществлено путем сочетания монокардбида вольфрама с вязкими металлами группы железа, преимущественно кобальтом. Такие сплавы могут быть получены методом порошковой металлургии и называются твердыми сплавами [28][29][30][31][32][33].…”

Synthesis of Ti-Cu Multiphase Alloy by Spark Plasma Sintering: Mechanical and Corrosion Properties

“…On their basis, the creation of competitive innovative products or the formation of large-scale more efficient production facilities that bring any industrial sector to a new modern level is ensured. For example, in recent decades, the market of modern materials with special properties has been actively formed, which include super hard materials [1], materials with a shape memory effect [2], materials with superfluidity [3] and superconductivity [4], corrosion-resistant materials [5,6], etc. The need for modern materials can be satisfied by intermetallic compounds, the number of studies on which has increased significantly in recent years [7,8].…”

“…The latter method makes it possible to produce compounds of almost any metallic composition [1,23,24]. The established advantages of SPS over traditional technologies are as follows: (a) low sintering temperatures, (b) short sintering cycle times (minutes), (c) low power consumption (about 1/5 of HP), (d) uniform heating of the material, (e) control of the temperature gradient, (f) absence of sintering additives and plasticizers, (g) sintering of powders with a wide particle size distribution, (h) achieving maximum density of the material (up to 100% of theoretical), (i) one-stage sintering, and (j) cleaning of the particle surface under the influence of current.…”

Spark Plasma Sintering of WC-Based 10wt%Co Hard Alloy: A Study of Sintering Kinetics and Solid-Phase Processes

“…The high sintering temperature of WC causes the use of metal-bonding alloys to synthesize WC, which gives the products bending strength. Research is continuing in the direction of studying the use of traditional and alternative binders based on the combination of iron and aluminum [ 19 ], Co and Ni 3 Al [ 20 ], Fe/Ni [ 21 ], as well as alternative binders based on metals with high melting temperatures accompanied by a phase formation during spark plasma sintering (SPS) reaction [ 22 ]. There are known cases of the application of complex medium-entropic compositions of hardened combined binders, including those used to manufacture alloys of high-tech products such as gas turbines [ 23 ].…”