2008
DOI: 10.1016/j.ijrmhm.2008.01.006
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Hardmetals with nanograin reinforced binder: Binder fine structure and hardness

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Cited by 32 publications
(12 citation statements)
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“…The microhardness of the Co-based binder phase was found to decrease from roughly 4.5 GPa for low-carbon alloys with 25% Co to below 2.5 GPa for high-carbon alloys (Suzuki and Kubota, 1966). The results of Konyashin et al (2008) indicate a less significant difference between the microhardness values of high-carbon and low-carbon model WC-Co alloys comprising 50% Co. The binder microhardness is equal to 4.7 GPa for the alloy comprising some h-phase and 3.6 GPa for the alloy comprising free carbon.…”
Section: Carbon Contentmentioning
confidence: 85%
See 1 more Smart Citation
“…The microhardness of the Co-based binder phase was found to decrease from roughly 4.5 GPa for low-carbon alloys with 25% Co to below 2.5 GPa for high-carbon alloys (Suzuki and Kubota, 1966). The results of Konyashin et al (2008) indicate a less significant difference between the microhardness values of high-carbon and low-carbon model WC-Co alloys comprising 50% Co. The binder microhardness is equal to 4.7 GPa for the alloy comprising some h-phase and 3.6 GPa for the alloy comprising free carbon.…”
Section: Carbon Contentmentioning
confidence: 85%
“…In order to solve the problem of low hardness and wear-resistance of the binder in ultra-coarse cemented carbides, novel grades with nanograin-reinforced binder with the brand name Master Grades Ò were developed and patented by E6HM (Konyashin et al, 2004(Konyashin et al, , 2005(Konyashin et al, , 2006(Konyashin et al, , 2008(Konyashin et al, , 2011. The structure of the Master Grade for road planing and its binder on the micro, nano and atomic levels is shown in Figure 8.…”
Section: Composition and State Of The Binder Phasementioning
confidence: 99%
“…In [ 31 , 32 ], on the contrary, the cobalt binder of cemented carbide was modified. It was reinforced by means of precipitated secondary θ-phase (Co 2 W 4 C) grains 2–5 nm in size ( Figure 1 b,d).…”
Section: Nanocomposites In Machining Toolsmentioning
confidence: 99%
“…Совместно с сотрудниками кафедры порошковой металлургии и функциональных покрытий МИСиС и учеными из ИСМАН им выполнен цикл работ по созданию твердых WC-Co-сплавов с использованием в качестве исходного сырья мелкозернистых и субмикронных СВС-порошков карбида вольфрама [39][40][41], в которых показано, что данные порошки значительно расширяют сырьевую базу твердосплавной промышленности. Несколько позже были разработаны материаловедческие основы и технология производства специальных марок твердых сплавов для породоразрушающего инструмента и дорожных резцов из особокрупнозернистых порошков карбида вольфрама с наноструктурированной связкой на основе кобальта [42,43].…”
Section: историческая справкаunclassified