scholarly journals Variations in Some Properties of Sintered Tungsten Carbide–Cobalt Alloys with Particle Size and Binder Composition

1966 ◽  
Vol 7 (2) ◽  
pp. 112-116 ◽  
Author(s):  
Hisashi Suzuki
Keyword(s):  
Particle Size ◽  
Tungsten Carbide ◽  
Cobalt Alloys ◽  
Sintered Tungsten ◽  
Binder Composition

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

2021 ◽  
Vol 12 ◽  
pp. 1747-1754
Author(s):  
Yingbiao Peng ◽  
Tao Li ◽  
Jianzhan Long ◽  
Haohan Li ◽  
Bizhi Lu ◽  
...  
Keyword(s):  
Particle Size ◽  
Cemented Carbides ◽  
Binder Composition

scholarly journals Effect of initial particle size and various composition on the spark plasma sintering of binderless tungsten carbide

2021 ◽  
Vol 1758 (1) ◽  
pp. 012022
Author(s):  
E A Lantsev ◽  
N V Malekhonova ◽  
V N Chuvil`deev ◽  
A V Nokhrin ◽  
M S Boldin ◽  
...  
Keyword(s):  
Particle Size ◽  
Tungsten Carbide ◽  
Spark Plasma Sintering ◽  
Initial Particle ◽  
Initial Particle Size ◽  
Plasma Sintering ◽  
Spark Plasma

scholarly journals Preparation of Diamond Coated Cutting Tool using Cobaltless Sintered Tungsten Carbide.

1999 ◽  
Vol 65 (10) ◽  
pp. 1507-1511
Author(s):  
Toru IIZUKA ◽  
Atsushi HIRATA ◽  
Masanori YOSHIKAWA
Keyword(s):  
Tungsten Carbide ◽  
Cutting Tool ◽  
Sintered Tungsten

scholarly journals Effect of Particle Size on Microstructure and Element Diffusion at the Interface of Tungsten Carbide/High Strength Steel Composites

Materials ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4164 ◽  
Author(s):  
Hongmei Zhang ◽  
Hongnan Li ◽  
Ling Yan ◽  
Chao Wang ◽  
Fangfang Ai ◽  
...  
Keyword(s):  
Particle Size ◽  
Tungsten Carbide ◽  
High Strength Steel ◽  
Average Particle Size ◽  
High Strength ◽  
Average Particle ◽  
Micro Hardness ◽  
Vacuum Sintering ◽  
Element Diffusion ◽  
Average Grain Size

The microstructure and micro-hardness of tungsten carbide/high strength steel (WC/HSS) composites with different particle sizes were analyzed by optical microscopy (OM), scanning electron microscopy (SEM), ultra-high temperature laser confocal microscopy (UTLCM) and micro-hardness testing. The composites were prepared by cold pressing and vacuum sintering. The results show that WC density tends to increase as the average grain size of WC decreases and the micro-hardness of WC increases with the decrease of WC particle size. The micro-hardness of WC near the bonding interface is higher than that in other regions. When the particle size of WC powder particles is 200 nm, a transition layer with a certain width is formed at the interface between WC and HSS, and the combination between the two materials is metallurgical. The iron element in the HSS matrix diffuses into the WC structure in contact with it, resulting in a fusion layer of a certain width, and the composite interface is relatively well bonded. When the average particle size of WC powder is 200 nm, W, Fe and Co elements significantly diffuse in the transition zone at the interface. With the increase of WC particle size, the trend of element diffusion decreases.

The effect of planetary milling conditions on tungsten-carbide (WC) particle size reduction and sintered properties

2020 ◽  
Author(s):  
Kiran Aithal ◽  
H. N. Manjunath ◽  
N. Ramesh Babu ◽  
Praveen Kumar ◽  
Atreya
Keyword(s):  
Particle Size ◽  
Tungsten Carbide ◽  
Size Reduction ◽  
Particle Size Reduction

Correlation between the particle size, pore size, and porous structure of sintered tungsten

1988 ◽  
Vol 27 (12) ◽  
pp. 941-947
Author(s):  
V. V. Skorokhod ◽  
O. I. Get'man ◽  
A. E. Zuev ◽  
S. P. Rakitin
Keyword(s):  
Particle Size ◽  
Porous Structure ◽  
Pore Size ◽  
Sintered Tungsten

Influence of Powder Structure on Decarburization and Microstructure of HVOF Sprayed WC-12wt.%Co Coatings

2013 ◽  
Vol 834-836 ◽  
pp. 609-612 ◽  
Author(s):  
Ning Ma ◽  
Zhen Xiong Cheng ◽  
Huan Tao Wu ◽  
Fu Xing Ye
Keyword(s):  
Particle Size ◽  
Tungsten Carbide ◽  
Carbide Particle ◽  
Volume Fraction ◽  
Xrd Analysis ◽  
X Ray Diffraction ◽  
Spray System ◽  
Hvof Spray ◽  
Steel Substrates ◽  
Sprayed Coatings

In order to examine the influences of tungsten carbide particle size on decarburization behavior and microstructure of HVOF sprayed WC-Co coating, four kinds of agglomerated WC-12wt.%Co powders were deposited on mild steel substrates by using a high velocity oxy-fuel (HVOF) spray system. The phase compositions and microstructure of the feedstock powders and sprayed coatings were investigated by X-ray diffraction (XRD) analysis and scanning electron microscopy (SEM), respectively. The results showed that the decarburization became more serious with the decreasing of tungsten carbide particle size in the starting powder. W phase was detected in the as-sprayed nanocomposite WC-12wt.%Co coating. All the coatings showed very compact microstructure with the hard phases embedded in Co matrix. The microstructure of HVOF sprayed WC-12wt.%Co coatings depended on the feedstock powder structure. The shape of tungsten carbide particles was rounder and the volume fraction of carbide phase decreased in coatings as the tungsten carbide particle size decreased.

Applicability of Diamond-Coated Tools for Ball End Milling of Sintered Tungsten Carbide

2020 ◽  
Vol 14 (1) ◽  
pp. 18-25
Author(s):  
Haruhiko Suwa ◽  
Soushi Sakamoto ◽  
Masafumi Nagata ◽  
Kazuhiro Tezuka ◽  
Tetsuo Samukawa ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Tungsten Carbide ◽  
End Milling ◽  
High Hardness ◽  
High Heat ◽  
Point Of View ◽  
Cutting Conditions ◽  
Cutting Condition ◽  
Ball End Milling ◽  
Sintered Tungsten

Sintered tungsten carbide which has high hardness and high heat resistance, has been widely used in molds and dies. Research on the development of a cutting technology for sintered tungsten carbide (sintered WC-Co alloy) has been pursued mainly with the use of a turning process. We focused on building an efficient milling method for sintered tungsten carbide by using diamond-coated ball end tools, and have investigated their basic properties under specific cutting conditions. This study extends our previous work by enhancing cutting distance in the milling of sintered tungsten carbide, especially that with a “fine” WC grain. The surface roughness of cut workpieces is evaluated from the point of view of the quality of surface roughness. A series of cutting experiments under different cutting conditions were carried out, and the possibility of deriving a suitable cutting condition for the ball end milling of sintered tungsten carbide is discussed.

Influence of Tungsten-Carbide and Cobalt on Tool Wear in Cutting of Cemented Carbides with Polycrystalline Diamond Tool

2013 ◽  
Vol 7 (4) ◽  
pp. 433-438 ◽  
Author(s):  
Junsuke Fujiwara ◽  
◽  
Keisuke Wakao ◽  
Takeshi Miyamoto ◽  
Keyword(s):  
Particle Size ◽  
Tool Wear ◽  
Tungsten Carbide ◽  
Diamond Tool ◽  
Polycrystalline Diamond ◽  
Cemented Carbides ◽  
Large Particles

The influence of the tungsten-carbide (WC) particle size and Co contents of cemented carbides on polycrystalline diamond tool wear during turning was investigated experimentally. The main results obtained were as follows. (1) Tool wear increased with increasing Co content. (2) It is important to cut off the binder between the WC particles and the Co. (3) Cemented carbides containing small WC particles are more effective than cemented carbides containing large particles.

Sign in / Sign up

Export Citation Format

Share Document