Microstructure characterization and quantitative analysis of copper alloy matrix composites reinforced with WC-xNi powders prepared by spontaneous infiltration

Daoud, Ismail; Miroud, Dj.; Yamanoğlu, Rıdvan

doi:10.2298/jmmb171225005d

Cited by 5 publications

(2 citation statements)

References 55 publications

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“…Many processing tech-niques have been developed to produce MMCs employing a variety of binder and reinforcement combinations [6][7][8][9][10][11][12]. Among these, a spontaneous infiltration process is widely used for making MMCs with a high volume fraction of reinforcements which offers many more advantages compared to those of other conventional manufacturing processes [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Physical-and-chemical processes at the interfaces of (Cu–Ni–Mn–Fe)/ (W–C) composites

Sukhova

2023

physics

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The spontaneous infiltration method for fabricating composites was used, in which molten Cu–Ni–Mn–Fe binders penetrated W–C filler particles due to capillary forces. The metal matrix composites thus obtained were characterized for phase composition, microstructure, porosity and microhardness. All composites were studied in their as-prepared condition with further annealing at 900°С for 60 and 750 h. It was shown that the mechanism based on the dissolution/diffusion bonding of the particulate/matrix interface was in agreement with the results of this study. The interfacial reactions provided a driving force for wetting but did not give rise to unwanted phases that could degrade the properties of the composite materials. From the EDX measurements it was concluded that mainly Fe atoms diffused from the Cu–Ni–Mn–Fe binders into the WC phase of the eutectic (WC+W2C) filler. Dissolution of this phase resulted in the appearance of W2C layer at the interface. Annealing at 900°С significantly promoted the interfacial reaction especially during the first 60 h of heat treatment. The degree of the reaction between the molten Cu–Ni–Mn–Fe alloys and W–C particulate could be limited by controlling the iron content of the binders to obtain an optimal interface.

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Section: Introductionmentioning

confidence: 99%

Physical-and-chemical processes at the interfaces of (Cu–Ni–Mn–Fe)/ (W–C) composites

Sukhova

2023

physics

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“…A different research direction of reinforcement for MMCs is the addition of nanocrystalline particles. Such Cu-based metal matrix composites have been extensively studied in recent years due to attained better properties than pure copper [17,18,19,20]. Cu-based composites with nano-Al 2 O 3 [21,22,23,24] are materials developed for wide range of applications.…”

Section: Introductionmentioning

confidence: 99%

Development of novel ultrafine grain cu metal matrix composites reinforced with Ti-Cu-Co-M (M: Ni, Zr) amorphous-nanocrystalline powder

Janovszky

Kristály

Mikó

et al. 2018

J min metall B Metall

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Novel ultrafine grain composites of Cu matrix reinforced with 2-50 wt. % of Ti 48 Cu 39.5 Ni 10 Co 2.5 and Ti 48 Cu 39.5 Zr 10 Co 2.5 (at. %) amorphous-nanocrystalline alloy particles have been fabricated by powder metallurgy. The composites showed a homogeneous structure. The characterization of composites was performed by optical and scanning electron microscopy (SEM), X-ray powder diffraction (XRD), micro-and macrohardness, as well as density measurements. After hot-pressing the crystallite size of Cu was smaller than 200 nm and nanocrystalline phases of reinforcing powder were 5-35 nm. Densities of 97-76 % relative to calculated values of consolidated composites were obtained, depending on the reinforcing weight fraction. Additionally, the mechanical properties and electrical resistivity of composites have been investigated. The results reveal that the 0.2% offset compressive yield strength of composites increases by two and five times, with respect to pure Cu matrix, for the composites reinforced with 2 and 50 wt. % of reinforcing particles, respectively. Electrical resistivity increases continuously, with higher values after 30 wt. % of addition. Changes in mechanical and electrical properties were produced by the increase of amorphous-nanocrystalline additive.

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Tribological properties of in situ oxide reinforced nickel matrix composites produced by pressure-assisted sintering

Mameri

Daoud

Rezzoug

et al. 2022

Int J Adv Manuf Technol

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Microstructure characterization and quantitative analysis of copper alloy matrix composites reinforced with WC-xNi powders prepared by spontaneous infiltration

Cited by 5 publications

References 55 publications

Physical-and-chemical processes at the interfaces of (Cu–Ni–Mn–Fe)/ (W–C) composites

Physical-and-chemical processes at the interfaces of (Cu–Ni–Mn–Fe)/ (W–C) composites

Development of novel ultrafine grain cu metal matrix composites reinforced with Ti-Cu-Co-M (M: Ni, Zr) amorphous-nanocrystalline powder

Tribological properties of in situ oxide reinforced nickel matrix composites produced by pressure-assisted sintering

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