Results 11 to 20 of about 13,160 (287)

Toughening cemented carbides by phase transformation of zirconia

open access: yesMaterials & Design, 2021
Yttria partially stabilized zirconia was introduced into WC-Co cemented carbides to enhance their mechanical performance. The hardness and fracture toughness were improved simultaneously with the addition of ZrO2.
Wentao Jiang   +5 more
doaj   +1 more source

Characterization of grain boundary character distribution in cemented carbides via a stereological method [PDF]

open access: yesProcessing and Application of Ceramics, 2022
This paper reports the interdisciplinary approach of simultaneous use of a stereological method, namely the five parameter analysis (FPA) method and the grain boundary character distribution (GBCD) in cemented carbides.
Yuan Xiaokun, Ji Yuan
doaj   +1 more source

Comparison of the microstructure and mechanical properties of WC-Ti(C, N)-Ni gradient cemented carbides prepared by SPS pre-sintering and vacuum pre-sintering

open access: yesJournal of Materials Research and Technology, 2023
Two-step sintering to prepare gradient cemented carbides tends to the grain growth of hard phases, which adversely affects the mechanical properties.
Can Hu   +8 more
doaj   +1 more source

Mechanics and mechanisms of fatigue in a WC-Ni hardmetal and a comparative study with respect to WC-Co hardmetals [PDF]

open access: yes, 2015
There is a major interest in replacing cobalt binder in hardmetals (cemented carbides) aiming for materials with similar or even improved properties at a lower price.
Coureaux Mustelier, David   +5 more
core   +2 more sources

Characteristics and cutting perfomance of the CVD coatings on the TiCN-based cermets in turning hardened AISI H13 steel

open access: yesJournal of Materials Research and Technology, 2020
CVD coatings were deposited on the cermets and cemented carbides tools. Uncoated cermets, coated cermets and cemented carbides tools were used for hardened AISI H13 steel machining.
Junbo Liu   +5 more
doaj   +1 more source

Preparation of WC cemented carbide without metallic binder toughened by MgO-B2O3 via spark plasma sintering at 1400℃

open access: yesCailiao gongcheng, 2022
In order to reduce the sintering temperature and obtain higher fracture toughness of WC cemented carbides without metallic binder, WC cemented carbide was toughened by MgO and B2O3.
LAI Jiaming   +5 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

WC-Based Cemented Carbides with High Entropy Alloyed Binders: A Review

open access: yesMetals, 2023
Cemented carbides have belonged to the most important engineering materials since their invention in the 1920s. Commonly, they consist of hard WC grains embedded in a cobalt-based ductile binder. Recently, attempts have been made to substitute the cobalt
Boris Straumal, Igor Konyashin
doaj   +1 more source

Microstructure and Properties of Ultrafine Cemented Carbides Prepared by Microwave Sintering of Nanocomposites

open access: yesCrystals, 2020
Ultrafine cemented carbides were prepared by microwave sintering, using WC-V8C7-Cr3C2-Co nanocomposites as a raw material. The effects of sintering temperature and holding time on the microstructure and mechanical properties of cemented carbides were ...
Yanju Qian, Zhiwei Zhao
doaj   +1 more source

On Measurement and Interpretation of Toughness Behaviour of Carbide Tools [PDF]

open access: yes, 1981
The actual significance of any definition of toughness behaviour of carbide tools depends on the existence of an interrelation between the quality as defined and the occurrence of chipping and premature failure in cutting.
Kals, H.J.J.
core   +2 more sources

Home - About - Disclaimer - Privacy