Microstructure and mechanical properties of WC–(Ti, M)(C, N)–Co cemented carbides with different nitrogen contents

Fan, Hanjie; Liu, Ying; Ye, Jinwen; Qiu, Weibin; Qiu, Yuchong

doi:10.1007/s12598-016-0737-0

Cited by 6 publications

(5 citation statements)

References 22 publications

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“…Infiltration method is one of the most common method to fabricate the W-Cu alloy, by which the W-Cu alloy prepared have high relative density, uniform microstructure and good thermal and electrical conductivity [3].…”

Section: Infiltration Methodsmentioning

confidence: 99%

“…Tungsten with body centered cubic structure has high melting point, high density and high hardness. Tungsten heavy alloy is based on tungsten (W%:85%-99% in wt%)with Ni, Cu, Fe, Co, Mo, Cr et al as alloying elements, of which the density is as high as 16.5-19.0g/cm 3 .The WHA is the second largest type of highly-processed products made of Tungsten, and the main material systems of WHA consist of W-Cu, W-Ni-Fe, W-Ni-Cu, W-Hf, W-Ta and W-Re et al In order to meet the requirements of new materials in major military projects application, scientists have successfully developed W-Ni-Cu alloy which can be used in making gyroscope rotor of artificial satellite. Recently, the W-Ni-Fe alloy was developed, which have been applied in the field of kinetic energy penetrators, the electrical process, and the medical profession due to the advantages of strength and ductility.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, the W-Ni-Fe alloy was developed, which have been applied in the field of kinetic energy penetrators, the electrical process, and the medical profession due to the advantages of strength and ductility. Meanwhile the W-Cu alloy was also developed, which can be used as the materials for high temperature and transpiration of the nozzle throat insert [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

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The Research Status of the Preparation and Properties of the Tungsten Heavy Alloy

Fang

Zhang

Wang

2014

AMR

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Due to the excellent physical and chemical characteristics and mechanical properties of the tungsten heavy alloy (WHA), the WHAs have been widely applied in many areas of the national economy. In this paper, the concept of the WHA is introduced briefly, and the preparation process and properties of the WHAs are summarized. Compared with depleted uranium alloy, the WHA shows broad application prospects in the field of kinetic energy projectile.

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Section: Infiltration Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The Research Status of the Preparation and Properties of the Tungsten Heavy Alloy

Fang

Zhang

Wang

2014

AMR

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“…In [ 46 ], the carbothermal reduction–nitridation (CRN) technology was utilized to produce three different quaternary solid-solution powders of (Ti, M)(C 1−x , N x ) (M = Ta, Nb, W, x = 0.15, 0.20 and 0.26). These powders had various nitrogen contents.…”

Section: Alloying Of Cobalt Binder Using Nitrides Borides Carbides Si...mentioning

confidence: 99%

Faceting/Roughening of WC/Binder Interfaces in Cemented Carbides: A Review

Straumal

Konyashin

2023

Materials

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Hardmetals (or cemented carbides) were invented a hundred years ago and became one of the most important materials in engineering. The unique conjunction of fracture toughness, abrasion resistance and hardness makes WC-Co cemented carbides irreplaceable for numerous applications. As a rule, the WC crystallites in the sintered WC-Co hardmetals are perfectly faceted and possess a truncated trigonal prism shape. However, the so-called faceting–roughening phase transition can force the flat (faceted) surfaces or interfaces to become curved. In this review, we analyze how different factors can influence the (faceted) shape of WC crystallites in the cemented carbides. Among these factors are the modification of fabrication parameters of usual WC-Co cemented carbides; alloying of conventional cobalt binder using various metals; alloying of cobalt binder using nitrides, borides, carbides, silicides, oxides; and substitution of cobalt with other binders, including high entropy alloys (HEAs). The faceting–roughening phase transition of WC/binder interfaces and its influence on the properties of cemented carbides is also discussed. In particular, the increase in the hardness and fracture toughness of cemented carbides correlates with transition of WC crystallites from a faceted to a rounded shape.

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“…W-Cu alloy is a pseudo-alloy consisting of W and Cu, which has common good qualities of W and Cu, such as excellent electrical and thermal conductivity, high strength, extreme hardness and low thermal expansion coefficient. As a result, W-Cu composites have been widely applied in heat sink material, electric contact material, Electrical discharge machining material, high-temperature structural material, arc resistance of electrode material and heavy electrical contact material [1][2][3][4][5] . The traditional method of fabricating W-Cu alloy is infiltration process.…”

Section: Introductionmentioning

confidence: 99%

W-Cu Nano-Composite Powders Prepared by Hydrothermal Method

Xie

Shu

Qin

et al. 2014

AMM

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The grain size of W-Cu nanocomposites would greatly affect the density of W-Cu alloy. In this work, W-Cu oxide nanocomposite powders were prepared by sodium tungstate and copper nitrate via hydrothermal method, and W-Cu nanocomposite powders were obtained by subsequently co-reduction process. The characterization of W-Cu nanocomposite powders were carried out by X-ray diffraction (XRD), scanning electron microscope (SEM), energy spectrum analysis (EDS) and transmission electron microscope (TEM). The results indicated that hydrothermal method was a good method for the preparation of W-Cu oxide nanocomposite powders. W-Cu nanocomposite powders, whose grain size was about 70nm and distributed uniformity, were manufactured by co-reduction process.

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Microstructure and mechanical properties of WC–(Ti, M)(C, N)–Co cemented carbides with different nitrogen contents

Cited by 6 publications

References 22 publications

The Research Status of the Preparation and Properties of the Tungsten Heavy Alloy

The Research Status of the Preparation and Properties of the Tungsten Heavy Alloy

Faceting/Roughening of WC/Binder Interfaces in Cemented Carbides: A Review

W-Cu Nano-Composite Powders Prepared by Hydrothermal Method

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