Results 21 to 30 of about 13,160 (287)

Effect of the combined addition of TaC and NbC on the dispersity of cubic phase in ultra-fine WC–10Co–0.5Cr cemented carbides

open access: yesMaterials Research Express, 2020
TaC and NbC have different effects on the dispersity of precipitated cubic phase, which acts as an important role in regulating the mechanical properties of ultra-fine cemented carbides. In this work, the influence of the combined addition of TaC and NbC
Na Li   +4 more
doaj   +1 more source

Electrochemical Corrosion Resistance of Ni and Co Bonded Near-Nano and Nanostructured Cemented Carbides

open access: yesMetals, 2020
The advantages of nanostructured cemented carbides are a uniform, homogenous microstructure and superior, high uniform mechanical properties, which makes them the best choice for wear-resistant applications.
Tamara Aleksandrov Fabijanić   +4 more
doaj   +1 more source

HRXRD study of the theoretical densities of novel reactive sintered boride candidate neutron shielding materials [PDF]

open access: yes, 2020
Reactive Sintered Borides (RSBs) are novel borocarbide materials derived from FeCr-based cemented tungsten (FeCr-cWCs) show considerable promise as compact radiation armour for proposed spherical tokamak,[1],[2],[3],[4],[5].
Marshall, Jessica M.   +2 more
core   +1 more source

Effect of Carbon Stabilizing Elements on WC Cemented Carbides with Chromium Steel Binder

open access: yesMedžiagotyra, 2019
High price, limited availability and toxicity of cobalt motivates researchers and material engineers to find alternative binder systems for WC cemented carbides. Iron and iron alloys are promising candidates for complete cobalt substitution.
Marek TARRASTE   +4 more
doaj   +1 more source

Effect of Sintering Process on Properties and Microstructure of WC-1.0TiC-3.1TaC-4.5Co Cemented Carbides

open access: yesCailiao gongcheng, 2016
A series of WC-1.0TiC-3.1TaC-4.5Co cemented carbides were prepared by vacuum sintering and Sintering-HIP through traditional powder metallurgy method. Optical microscopy(OM),scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS)
LI Zhong-dian   +5 more
doaj   +1 more source

Ultrafine/nano WC-Co cemented carbide: Overview of preparation and key technologies

open access: yesJournal of Materials Research and Technology, 2023
Ultrafine/nano WC–Co cemented carbide is widely used because of its high hardness, strength, toughness, and other comprehensive properties. However, WC grain growth during preparation is a persistent issue that hinders the development of this type of ...
Yucheng Wu   +4 more
doaj   +1 more source

Molecular dynamics simulation on friction and wear behavior of WC–Co cemented carbides

open access: yesFenmo yejin jishu, 2022
The friction process of the WC–Co cemented carbides in the different conditions was investigated by molecular dynamics simulation in this work. The effects of grain size, friction load, and sliding velocity on the friction and wear behavior of the ...
LOU He-zi   +7 more
doaj   +1 more source

Investigations on micro-mechanical properties of polycrystalline Ti(C,N) and Zr(C,N) coatings [PDF]

open access: yes, 2018
Micro-mechanical properties of Ti(C,N) and Zr(C,N) coatings deposited by chemical vapor deposition on a WC-Co cemented carbide substrate were examined by micro-compression testing using a nanoindenter equipped with a flat punch.
El Azhari, Idriss   +6 more
core   +3 more sources

Ceramic dies selection for electrical resistance sintering of metallic materials [PDF]

open access: yes, 2019
Processing metallic powders by electrical resistance sintering requires the use of insulating ceramics dies. Selecting the appropriate ceramic material according to the electrical, thermal and mechanical properties is a need.
Andreouli, D.   +6 more
core   +2 more sources

Geometry effects during sintering of graded cemented carbides: Modelling of microstructural evolution and mechanical properties

open access: yesResults in Materials, 2019
Cemented carbides with mesoscopically non-homogeneous properties by design represent a potential to enhance performance in metal cutting and rock drilling.
Armin Salmasi   +2 more
doaj   +1 more source

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