Results 31 to 40 of about 13,160 (287)

Laser surface texturing of a WC-CoNi cemented carbide grade: surface topography design for honing application [PDF]

, 2018
Abrasive effectiveness of composite-like honing stones is related to the intrinsic surface topography resulting from the cubic boron nitride (CBN) grains protruding out of the metallic matrix.
Bähre, Dirk, Fang, Shiqi, Llanes Pitarch, Luis Miguel   +2 more
core   +2 more sources

3D Printing of cemented carbides: a review of techniques, defects, and post-processing

Journal of Materials Research and Technology
Cemented carbides, known for their exceptional hardness, thermal stability, and wear resistance, serve as vital components across various industries, including mechanical manufacturing, aerospace, and chemical engineering.
Chenyang Ma, Tianen Yang, Yaoqin Tang, Zhiyuan Zou, Zhiyuan Ma, Yu Cao, Jiahuan He, Ling Chen, Ting Chen, Ji Xiong   +9 more
doaj   +1 more source

Research progress on preparation of cobalt-less/cobalt-free WC-based materials

Fenmo yejin jishu, 2021
In view of the scarcity of cobalt resources in China and the deficiency of the traditional WC–Co cemented carbides serving in the corrosive medium and high temperature environments, a series of cobalt-less/cobalt-free WC-based materials with good ...
TANG Yu
doaj   +1 more source

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

, 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, Cintas Físico, Jesús, Gallardo Fuentes, José María, Gómez Cuevas, Francisco de Paula, Montes Martos, Juan Manuel, Prakash, Leo, Torres, Yadir   +6 more
core   +2 more sources

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

, 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., Wahnström, Göran   +1 more
core   +2 more sources

Effects of Sintering Pressure and Co Content on the Microstructure and Mechanical Performance of WC–Co Cemented Carbides

Metals
The fabrication of WC-based cemented carbides faced challenges including inhomogeneous composition and grain coarsening. To solve these problems, WC–Co cemented carbides were fabricated via spark plasma sintering (SPS) using core–shell WC–Co powders ...
Jinhu Ju, Dan Huang, Haitao Xu, Duo Dong, Jiangpeng Lou, Yuan Xu, Jiao Shi, Liu Zhu   +7 more
doaj   +1 more source

Effects of Cr concentration on the microstructure and properties of WC-Ni cemented carbides

Journal of Materials Research and Technology, 2020
Based on thermodynamic calculations, WC-Ni-Cr3C2 model alloys with high Ni content have been designed by fixing the carbon potential to form either graphite or eta (M6C) phases.
Guoping Li, Yingbiao Peng, Lianwu Yan, Tao Xu, Jianzhan Long, Fenghua Luo   +5 more
doaj   +1 more source

The Effect of Cr3C2 and TaC Additives on Microstructure, Hardness and Fracture Toughness of WC-6Co Tool Material Fabricated by Spark Plasma Sintering [PDF]

Materials Research, 2017
Spark plasma sintering has been used to successfully produce WC-6Co-xCr3C2, WC-6Co-xTaC (x = 0.2, 0.6, 1.0) and WC-6Co-xCr3C2-xTaC (x = 0.1, 0.3, 0.5) cemented carbides. The spark plasma sintered compacts were investigated by scanning electron microscopy,
Piotr Siwak, Dariusz Garbiec, Michal Rogalewicz   +2 more
doaj   +1 more source

Production of cemented carbide tools using technology of multiaxial pressing [PDF]

, 2015
Tato bakalářská práce je zaměřena na řezné nástroje, které jsou vyrobeny ze slinutých karbi-dů. V této práci je charakterizován vývoj slinutých karbidů, rozdělení slinutých karbidů, mate-riály, ze kterých se slinuté karbidy vyrábějí a proces výroby ...
Mach, Martin
core  

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source