WC–TiC–Ni cemented carbide with enhanced properties

Guo, Zhixing; Xiong, Ji; Yang, Mei; Jiang, Cijin

doi:10.1016/j.jallcom.2007.10.132

Cited by 52 publications

(13 citation statements)

References 19 publications

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“…Cobalt is usually utilized as the binder phase of the most tungsten cemented carbides due to its excellent wetting, adhesion and adequate mechanical properties [6,7]. However, cobalt is high-priced, in short supply and not economically attractive [8e10].…”

Section: Introductionmentioning

confidence: 99%

Effect of Mo addition on the microstructure and properties of WC–Ni–Fe hard alloys

Zhao

Liu

Tang

et al. 2015

Journal of Alloys and Compounds

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Section: Introductionmentioning

confidence: 99%

Effect of Mo addition on the microstructure and properties of WC–Ni–Fe hard alloys

Zhao

Liu

Tang

et al. 2015

Journal of Alloys and Compounds

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“…5 and 6). This was due to the better wetting of WC by Co than Ni, giving better binder distribution [2,15] as well as nickel's higher plasticity than Co [15,26,27]. Generally, WC-10Co (LPS) had higher hardness than the LPS NbC based samples, and a similar trend was observed in the PECS samples (Fig.…”

Section: Mechanical Propertiesmentioning

confidence: 54%

“…The microstructure of WC-10Ni (LPS) (Fig. 2(c)) had larger and poorly distributed Ni-binder pools compared to the WC-10Co (LPS) sample due to of the poorer wetting of WC by Ni than Co [3,10,26,27]. The wetting of WC by the liquid phase is defined by the contact angle, θ; smaller contact angles increase the ability of the liquid to spread on the surface [28].…”

Section: Microstructurementioning

confidence: 99%

Roughing, semi-finishing and finishing of laser surface modified nickel bonded NbC and WC inserts for grey cast iron (GCI) face-milling

Genga

Rokebrand

Cornish

et al. 2020

International Journal of Refractory Metals and Hard Materials

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An attempt to improve the machining performance of NbC-Ni cutting inserts by rapid pulse electric current sintering (PECS), TiC and Mo 2 C additions and laser surface modification (LSM) was done. Use of a nickel binder and additions TiC and Mo 2 C to liquid phase sintered (LPS) NbC based samples led to comparable hardness (> 13 GPa) and K IC (~10 MPa.m 1/2 ) to LPS WC-Co/Ni samples. The laser surface modification (LSM) technique produced a~2.5 μm thick self-carbide coating, increasing the surface hardness of all the samples. Laser surface modification was done to improve abrasion and attrition wear resistance. Face-milling of grade 17 grey cast iron (BS 1452/GG35) was conducted at 100-500 m/min cutting speeds (v c ) and 0.25-1.5 mm depths of cut (a p ). The insert wear was measured after every pass, and analyzed by annular dark field scanning transmission electron microscopy (ADF-STEM). During roughing, WC-Co based inserts had the lowest flank wear rate (FWR) values, with the WC-10Co (LPS) insert having a FWR of 10.15 μm/min after 20 min cutting time. However, during semifinishing and finishing, NbC-4TiC-12Ni (PECS) and NbC-4Mo 2 C-4TiC-12Ni (PECS) inserts had the lowest FWR values, showing up to six times longer tool life than the WC-Co (LPS) inserts based inserts and 12 times longer life than the WC-Ni based inserts. Generally, LSM improved the NbC inserts' tool life, reducing the FWR values in all NbC based inserts in all cutting tests.

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“…Disks of the WC-10 wt.%(Co+Fe+Ni) cemented carbides with 2 cm diameter and 3 mm thickness were utilized, which were weighted with an accuracy of 0.1 mg prior to wear testing. Al 2 O 3 balls of 6 mm diameter were used as counterpart (hardness of 60 HRC), rotated at normal loads (F) of 10, 15, or 20 N on the surface of the WC-10 wt.%(Co+Fe+Ni) cemented carbides at a linear sliding speed of 15 cm/s under a track radius of 3 mm for a total sliding distance (d) of 2000 m. The coefficients of friction were continuously logged during the tribological tests, and the wear rates were calculated by standard procedures and equations from the mass loss accumulated at the end of the tribological tests [22]. To this end, the WC-10 wt.%(Co+Fe+Ni) disks were first cleaned with acetone and then re-weighted, next evaluating the specific wear rates (SWRs; mm 3 /(Nm)) by the following expression [23]:…”

Section: Methodsmentioning

confidence: 99%

A comparative study of the dry sliding wear of WC-10wt.%(Co+Fe+Ni) cemented carbides pressureless sintered with different Fe/Co ratios

Djematene

Djerdjare

Boukantar

et al. 2020

Journal of Asian Ceramic Societies

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Compositional effects on the dry sliding wear resistance of micrometer-grained WC-10 wt.%(Co +Fe+Ni) cemented carbides pressureless sintered with 2 wt.% Ni but different Fe/Co ratios were investigated. Their microstructures are very similar except for the contiguity of the WC grains, which increased with increasing Fe/Co ratio. Also, these cemented carbides are all almost fully dense, but with the degree of residual porosity exhibiting a complex trend with increasing Fe/Co ratio (first decreasing and then increasing). The greatest densification was reached for an Fe/Co ratio of 1. The reverse trend was observed for the hardness, which reached HV 10 =1090 kg/mm 2 for Fe/Co = 1, indicative that it is dictated essentially by the porosity. The wear resistance correlated inversely with the porosity (and thus directly with the hardness), so that the densest (and thus the hardest) of these cemented carbides (the one sintered with a Fe/Co ratio of 1) also exhibited the lowest coefficients of friction, the lowest specific wear rates, and the lowest microstructural damage. The wear mode was abrasion, with the wear mechanism being plastic deformation and especially fracture. Thus, optimization of the wear resistance of WC-(Co+Fe+Ni) cemented carbides for tribological applications is feasible by a judicious design of their binder composition.

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WC–TiC–Ni cemented carbide with enhanced properties

Cited by 52 publications

References 19 publications

Effect of Mo addition on the microstructure and properties of WC–Ni–Fe hard alloys

Effect of Mo addition on the microstructure and properties of WC–Ni–Fe hard alloys

Roughing, semi-finishing and finishing of laser surface modified nickel bonded NbC and WC inserts for grey cast iron (GCI) face-milling

A comparative study of the dry sliding wear of WC-10wt.%(Co+Fe+Ni) cemented carbides pressureless sintered with different Fe/Co ratios

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