Liquid Phase Sintering of WC-FeAl and WC-Ni&lt;sub&gt;3&lt;/sub&gt;Al Composites with and without Boron

Ahmadian, Mehdi; Wexler, David; Całka, A.; Chandra, T.

doi:10.4028/www.scientific.net/msf.426-432.1951

Cited by 23 publications

(6 citation statements)

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“…M. Ahmadian et al [19,20] have investigated the abrasive wear resistance of WC-Ni 3 Al with different amounts of boron and confirmed that the abrasive wear resistance of WC-40 vol.% (Ni 3 Al-500 ppm B) composite is superior to that of WC-40 vol.% Co cemented carbides, which is attributed to the higher hardness of Ni 3 Al in comparison with Co. T.N. Tiegs et al [21] produced a B-doped WC-17 vol.% Ni 3 Al alloy by hot pressing and reported that the flexural strength of the material can be retained to temperatures of at least 800°C, its fracture toughness and hardness were equal or higher than the comparable WC-Co. Based on spark plasma sintering method, X.Q.…”

Section: Introductionmentioning

confidence: 97%

Wear mechanisms of WC–10Ni3Al carbide tool in dry turning of Ti6Al4V

Liang

Liu

et al. 2015

International Journal of Refractory Metals and Hard Materials

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Section: Introductionmentioning

confidence: 97%

Wear mechanisms of WC–10Ni3Al carbide tool in dry turning of Ti6Al4V

Liang

Liu

et al. 2015

International Journal of Refractory Metals and Hard Materials

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“…Fe-Ni, Fe-Ni-Co, Fe-Cr, Fe-Al [8], Fe-Ni-C [9] 10 wt.% Fe [10] Fe-Ni, Fe-Ni-Co, Fe-Mn [11,12] Fe-Ni-Co [13,14] Fe-Cr-Ti(C,N) [15] Fe-Al-B [16] FeAl, Ni 3 Al [17] Fe-Ni-Cr [18,19] Fe-Ni-Co [20] Alloyed κ-W 9 Fe 3 C 4 , κ-W 9 Ni 3 C 4 , and κ-W 9 (Fe/Ni) 3 C 4 phases [21] Fe-Cu [22] Fe, FeAl [23][24][25] FeAl with VC and/or Cr 3 C 2 [26] Fe 3 Al [27] Fe-Mn [28,29] Fe-Ni-C [30] H13 Hudson tool steel [31] AISI 304 stainless steel [32][33][34][35] High vanadium tool steels PM 10 V and PM 15 V [36] Cobalt-based alloys Fe-Ni-Co [13,20] Fe-Cr-Co [37] Fe-Cu-Co [38] Fe-Cu-Ni-Co [39] Carbide binders Fe-Cr-Ti(C,N) [15] κ-W 9 Fe 3 C 4 , κ-W 9 Ni 3 C 4 , and κ-W 9 (Fe/Ni) 3 C 4 phases [21] FeAl with VC and/or Cr 3 C 2 [26], VC and Al [40], W 6 Co 6 C [41], ZrC [42], WCrC [43,44] η-phases W 2 C, W 3 Co 3 C, W 4 Co 2 C, and W 6 Co 6 C [41], ZrC [42], WCrC…”

Section: Iron and Iron-based Alloysmentioning

confidence: 99%

“…One can see that these attempts were made with pure metals [1,7,8,10,23,37,38,[46][47][48], binary alloys [8,10,17,18,22,24,25,[27][28][29]42,45], ternary [8][9][10]13,[15][16][17][18][19][20]26,30,[37][38][39][40][41]43,44] or ever quaternary alloys [21,26,[30][31][32][33][34][35][36]39]. A very interesting attempt was to use the strengthening nanozones in the Co matrix, based on the Co 3 W pha...…”

Section: Iron and Iron-based Alloysmentioning

confidence: 99%

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

Straumal

Konyashin

2023

Metals

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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 using multicomponent alloys without a principal component (also known as high entropy alloys—HEAs). HEAs usually contain at least five components in more or less equal amounts. The substitution of a cobalt binder with HEAs can lead to the refinement of WC grains; it increases the hardness, fracture toughness, corrosion resistance and oxidation resistance of cemented carbides. For example, a hardness of 2358 HV, fracture toughness of 12.1 MPa.m1/2 and compression strength of 5420 MPa were reached for a WC-based cemented carbide with 20 wt.% of the equimolar AlFeCoNiCrTi HEA with a bcc lattice. The cemented carbide with 10 wt.% of the Co27.4Cr13.8Fe27.4Ni27.4Mo4 HEA with an fcc lattice had a hardness of 2141 HV and fracture toughness of 10.5 MPa.m1/2. These values are higher than those for the typical WC–10 wt.% Co composite. The substitution of Co with HEAs also influences the phase transitions in the binder (between the fcc, bcc and hcp phases). These phase transformations can be successfully used for the purposeful modifications of the properties of the WC-HEA cemented carbides. The shape of the WC/binder interfaces (e.g., their faceting–roughening) can influence the mechanical properties of cemented carbides. The most possible reason for such a behavior is the modification of conditions for dislocation glide as well as the development and growth of cracks at the last stages of deformation. Thus, the substitution of a cobalt binder with HEAs is very promising for the further development of cemented carbides.

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“…In turn, they are surrounded by the ductile metallic binder phase. The binder is usually cobalt-based [ 7 , 8 , 9 , 10 , 11 , 12 ] but also can consist of Cr [ 10 ], Cu [ 11 , 13 ], Al [ 14 , 15 ], nickel or Ni-based alloys [ 12 , 16 , 17 , 18 , 19 ] or iron [ 16 ] or Fe-based alloys such as Fe–Ni, Fe–Ni–Co, Fe–Cr, Fe–Al [ 20 ], Fe–Ni–C [ 21 ], Fe–Ni, Fe–Ni–Co, Fe–Mn [ 17 , 22 ], Fe–Ni–Co [ 8 , 23 ], Fe–Cr–Ti(C,N) [ 23 ], Fe–Al–B [ 24 ], FeAl, Ni 3 Al [ 18 ], Fe–Ni–Cr [ 19 , 25 ], Fe–Ni–Co [ 9 ], Fe–Cu [ 26 ], FeAl [ 27 , 28 ], Fe–Mn [ 29 , 30 ], Fe–Ni–C [ 31 ], H13 Hudson tool steel [ 32 ], AISI 304 stainless steel [ 33 , 34 ] and high vanadium tool steels such as PM10V and PM 15 V [ 35 ].…”

Section: Introductionmentioning

confidence: 99%

Topology of WC/Co Interfaces in Cemented Carbides

et al. 2023

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WC–Co cemented carbides build one of the important classes of metal matrix composites. We show in this paper that the use of machine vision methods makes it possible to obtain sufficiently informative statistical data on the topology of the interfaces between tungsten carbide grains (WC) and a cobalt matrix (Co). For the first time, the outlines of the regions of the cobalt binder were chosen as a tool for describing the structure of cemented carbides. Numerical processing of micrographs of cross sections of three WC–Co alloys, which differ in the average grain size, was carried out. The distribution density of the angles in the contours of cobalt “lakes” is bimodal. The peaks close to 110° (so-called outcoming angles) correspond to the contacts between the cobalt binder and the WC/WC grain boundaries. The peaks close to 240° (or incoming angles) correspond to the WC “capes” contacting the cobalt “lakes” and are determined by the angles between facets of WC crystallites. The distribution density of the linear dimensions of the regions of the cobalt binder, approximated with ellipses, were also obtained. The distribution density exponentially decreases with the lengths of the semi-axes of the ellipsoid, approximating the area of the cobalt binder. The possible connection between the obtained data on the shape of cobalt areas and the crack trajectories in cemented carbides is discussed.

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Liquid Phase Sintering of WC-FeAl and WC-Ni<sub>3</sub>Al Composites with and without Boron

Cited by 23 publications

References 0 publications

Wear mechanisms of WC–10Ni3Al carbide tool in dry turning of Ti6Al4V

Wear mechanisms of WC–10Ni3Al carbide tool in dry turning of Ti6Al4V

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

Topology of WC/Co Interfaces in Cemented Carbides

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