Results 21 to 30 of about 69,895 (322)

Effect of WC content on ultrasonic properties, thermal and electrical conductivity of WC–Co–Ni–Cr composites

open access: yesOpen Chemistry, 2022
This study focused on the effect of WC on the ultrasonic properties, thermal and electrical conductivity of WC–Co–Ni–Cr composites. The samples were produced by powder metallurgy method for microstructural, physical, and ultrasonic characterization ...
Bilici Vildan Özkan
doaj   +1 more source

Fracture toughness of cemented carbides obtained by electrical resistance sintering [PDF]

open access: yes, 2019
The unique combination of hardness, toughness and wear resistance exhibited by WC-Co cemented carbides (hardmetals) has made them a preeminent material choice for extremely demanding applications, such as metal cutting/forming tools or mining bits, in ...
Astacio, Raquel   +6 more
core   +2 more sources

Corrosion behavior of WC–Co coating by plasma transferred arc on EH40 steel in low-temperature

open access: yesHigh Temperature Materials and Processes, 2022
To investigate the corrosion behavior of WC–Co composite coating, plasma transferred arc (PTA) welding was applied to prepare WC–Co coating on hull steel EH40 for achieving good metallurgical bonding.
Cao QiZheng   +4 more
doaj   +1 more source

A practical methodology to select fretting palliatives: Application to shot peening, hard chromium and WC-Co coatings [PDF]

open access: yes, 2005
Considered as a plague for numerous industrial assemblies, fretting, associated to slight oscillatory displacement, is encountered in all quasi-static contacts subjected to vibration.
Fouvry, S., Kubiak, K., Marechal, A.M.
core   +1 more source

Effects of WC Particle Size and Co Content on the Graded Structure in Functionally Gradient WC-Co Composites

open access: yesMATEC Web of Conferences, 2016
Functionally gradient WC-Co composites having a Co depleted surface zone and not comprising the h phase can be manufactured via carburizing process.
Yuan Yigao, Fu Lanping, Li Jianpeng
doaj   +1 more source

WC-Co-TiC Sermetlerinin Elektrik Akımı Destekli Sinterleme Yöntemi ile Üretimi ve Elektrokimyasal Özelliklerinin İncelenmesi

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2022
Bu çalışma kapsamında, Elektrik Akımı Destekli Sinterleme (ECAS) yöntemi kullanılarak 600-4500A akım aralığında yaklaşık 6 dakika gibi bir sürede WC-Co ve ağırlıkça %5, %7,5 ve %10 oranlarında TiC katkılı WC-Co malzemelerinin üretimleri gerçekleştirilmiş
Necati Koçak   +4 more
doaj   +1 more source

A note on threshold velocity criteria for modelling the solid particle erosion of WC/Co MMCs [PDF]

open access: yes, 2011
The threshold velocity for erosion of a ductile material is considered as the velocity required for initiation of plastic deformation in the substrate.
Jana, B.D., Stack, M.M.
core   +1 more source

Application of cast tungsten carbide particles coated with cobalt powder in diamond saw blades

open access: yesJin'gangshi yu moliao moju gongcheng, 2022
The application of the cast WC, the Co powder coated cast WC and the Ni powder coated cast WC particles in diamond saw blades were studied, and their effects on the mechanical properties, the micro morphologies and the cutting properties of the diamond ...
Yingkai LIU   +3 more
doaj   +1 more source

Implementation of an effective time-saving two-stage methodology for microstructural characterization of cemented carbides [PDF]

open access: yes, 2016
Linear intercept on scanning electron microscopy micrographs is the most commonly used measurement method to determine carbide grain size and contiguity in WC–Co cemented carbides (hardmetals).
Al-Dawery, Ihsan   +5 more
core   +2 more sources

Distinguishing contributions of ceramic matrix and binder metal to the plasticity of nanocrystalline cermets

open access: yesIUCrJ, 2020
Using the typical WC–Co cemented carbide as an example, the interactions of dislocations within the ceramic matrix and the binder metal, as well as the possible cooperation and competition between the matrix and binder during deformation of the ...
Xinru Ge   +7 more
doaj   +1 more source

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