Results 11 to 20 of about 69,895 (322)

Effect of WC Content on Microstructure and Element Diffusion of Nano WC-Co-TiC/304 Stainless Steel Composites for Micro Drill

open access: yesMetals, 2023
In this study, WC-Co-TiC/304 stainless steel composites were successfully prepared by compression at room temperature and vacuum sintering in a special mold.
Rui Zhu   +7 more
doaj   +1 more source

( Co , Ti - WC , WC ) على اداء العدد الكاربيدية ذات اساس ( TaC , SiC ) تأثير أضافة [PDF]

open access: yesEngineering and Technology Journal, 2005
This investigation is aimed to improve the carbide tips by studying the effect of adding new powders to the composition of the carbide tips . So a basic mixture containing ( WC , Ti - WC , Co ) with weight percentage ( 62 % , 32 % , 6 % ) was prepared ...
Khahtan Alkhazrajy   +2 more
doaj   +1 more source

Consolidation and Oxidation of Ultra Fine WC-Co-HfB2 Hard Materials by Spark Plasma Sintering [PDF]

open access: yesArchives of Metallurgy and Materials, 2021
In this study, a novel composite was fabricated by adding the Hafnium diboride (HfB2) to conventional WC-Co cemented carbides to enhance the high-temperature properties while retaining the intrinsic high hardness.
Hyun-Kuk Park   +4 more
doaj   +1 more source

Effect of bimodal WC particle size and binder composition on the morphology of WC grains in WC–Co–Ni3Al cemented carbides

open access: yesJournal of Materials Research and Technology, 2021
In addition to dispersed nanoparticles in the binder phase, the effect of Ni3Al on the growth mechanism of tungsten carbide (WC) grains is also essential for the fabrication of high-quality of cemented carbides.
Yingbiao Peng   +6 more
doaj   +1 more source

Effect of spray distance on the microstructure and corrosion resistance of WC - based coatings sprayed by HVOF [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2023
Cermet coatings provide protection against aggressive operating environment of machine and device elements, such as corrosion, wear or high-temperature conditions. Currently WC-based cermet coatings are frequently used in the different industry branches.
Ewa Jonda   +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

Novel Tensile Test Jig and Mechanical Properties of WC-Co Synthesized by SHIP and HIP Process

open access: yesMetals, 2021
Tungsten carbide-cobalt (WC-Co) alloys have various mechanical properties according to their Co content and manufacturing method. High-strength materials such as WC-Co alloys are usually manufactured using various sintering methods.
A-Ra Jo   +5 more
doaj   +1 more source

Behaviour of shot peening combined with WC-Co HVOF coating under complex fretting wear and fretting fatigue loading conditions [PDF]

open access: yes, 2006
This study investigated the fretting and fretting fatigue performance of tungsten carbide–cobalt (WC–Co) HVOF spray coating systems. Fretting wear and fretting fatigue tests of specimens with shot peening and WC–Co coatings on 30NiCrMo substrates were ...
A.M. Marechal   +16 more
core   +2 more sources

Theory of ultrathin films at metal-ceramic interfaces [PDF]

open access: yes, 2010
A theoretical model for understanding the formation of interfacial thin films is presented, which combines density functional theory calculations for interface energies with thermodynamic modeling techniques for multicomponent bulk systems. The theory is
Johansson, Sven A. E.   +1 more
core   +2 more sources

Processing and Microstructure of WC-CO Cermets by Laser Engineering Net Shaping [PDF]

open access: yes, 2008
Submicron-sized tungsten carbide-cobalt (WC-Co) powder and nanostructured WC-Co powder were applied to make thick wall samples by the Laser Engineered Net Shaping (LENS®) process.
Lavernia, E. J.   +3 more
core   +1 more source

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