Effects of interface formation kinetics on the microstructural properties of wear-resistant metal–matrix composites

Ilo, S.; Just, Ch.; Badisch, E.; Wosik, J.; Danninger, Herbert

doi:10.1016/j.msea.2010.06.060

Cited by 23 publications

(9 citation statements)

References 24 publications

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“…The last identified phase, Al or (Al), represents the matrix in the composite. An indirect evidence about the aluminium diffusion towards the CMA-area resides in higher aluminium contents in the newly formed Al 4 (Mn, Fe) and Al 6 (Mn, Fe) compounds compared to the Al 73 Mn 21 Fe 6 alloy [26,29]. On the other hand, there was not observed any step change in Mn and Fe concentrations near the IMC/matrix interface (Fig.…”

Section: Discussionmentioning

confidence: 92%

“…Even if CMAs show a high brittleness at ambient temperature, their use as reinforcing particles can lead to the formation of novel composites preserving the unique properties of CMAs. Moreover, the intermetallic compounds (IMC) formed due to the deformation and thermal effects at the metal matrix -CMA interfaces can contribute to the enhanced cohesion at internal surfaces and to influence positively final properties of composites [23][24][25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

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Influence of technological parameters on evolution of phases in Al-CMA composites prepared by powder metallurgy

Černičková¹,

Roščák²,

Ali³

et al. 2013

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The CMA-powder and the Al-CMA composite (CMA = Al73Mn21Fe6) have been studied with the intention to characterize the influence of selected technological procedures (milling for 80 h, extrusion at 400 • C under 500 MPa, compaction at 550 • C for 0.5 h, and annealing at 550 • C for respective 0.25 and 0.5 h) on the phase evolution inside CMA-areas and at Al/CMA interfaces. In the investigation X-ray diffraction and scanning electron microscopy including energy dispersive X-ray spectroscopy were used. It was shown that CMA-powder consisting of T(HT) + γ2 became totally amorphous after 80 h of milling. During extrusion, compaction, and annealing of the Al-CMA composite, the originally amorphous CMA particles were found to transform into crystalline phases at the assistance of aluminium diffusion towards the CMA-area. At the Al/CMA interfaces on the CMA side, IMC-areas (IMC = intermetallic compound) were formed consisting of Al6(Mn, Fe). T(LT) + Al4(Mn, Fe) + Al6(Mn, Fe) phases were identified in the CMA-areas after the annealing of the Al-CMA composite for 0.5 h at 550 • C. K e y w o r d s : metal-matrix composites, interfaces, scanning electron microscopy, energy dispersive X-ray spectroscopy, extrusion, annealing

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Section: Discussionmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Influence of technological parameters on evolution of phases in Al-CMA composites prepared by powder metallurgy

Černičková¹,

Roščák²,

Ali³

et al. 2013

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“…However, thin boundary layers containing Ni and traces of Fe were observed around the particles. These interface layers consist of secondary intermetallic phases which form when carbides dissolute at high temperatures during the cladding process . At first sight, Cr and O seem to be homogeneously distributed, Figure (P3‐Cr) and (P3‐O), but closer examination reveals the content of O to be actually higher inside the particles than inside the matrix.…”

Section: Resultsmentioning

confidence: 99%

“…MMC claddings typically consist of crushed or spherical tungsten carbide particles embedded into an iron‐, cobalt‐, or nickel‐based matrix. The microstructure and the wear behavior of these claddings are generally well studied at room temperature, but only a few investigations focus on their particular wear behavior at elevated temperatures . At room temperature, abrasive wear tends to decrease with increasing hardness of the MMC cladding, i.e., with increasing content or size of the hard particles inside the matrix, respectively.…”

Section: Introductionmentioning

confidence: 99%

Thermomechanical Wear Testing of Metal Matrix Composite Cladding for Potential Application in Hot Rolling Mills

Domitner

Aigner²,

Stern

et al. 2019

steel research int.

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Laser metal deposition (LMD) is utilized to clad the surface of a miniaturized test roll (Ø 40 mm) of tool steel. The cladding consists of two layers: a nickel alloy as intermediate layer deposited onto the surface of the steel substrate, and a metal matrix composite (MMC) as top layer consisting of spherical tungsten carbide particles embedded into the nickel alloy matrix. The thermomechanical wear behavior of the cladding is investigated on a test rig, where the test roll is pressed against an inductively heated load roll. Multiple test runs up to several hours simulating industrial loading conditions are performed. The presented testing procedure enables predicting the time-dependent abrasive wear behavior of the cladding, in particular for hot rolling mill applications. After testing for 8 h at temperature of 650 C and at contact pressure of approximately 1 GPa, the maximum depth of the wear mark is about 0.12 mm. Partial cracking, debonding and dissolution of the tungsten carbide particles, as well as formation of iron and chromium oxides at the surface of the wear marks occur. However, as low abrasive wear is observed, the investigated MMC may potentially be applicable for cladding rolls in steel hot rolling mills.

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“…In the metal matrix composites (MMCs), interface forms between hard particles and soft metal matrix, and its structure and performance are key factors to form the best comprehensive properties and give full play to the functions of composite [9]. Its structure and properties play a decisive role in the distribution of stress and strain, thermal expansion, load transfer and fracture process in MMCs.…”

Section: Introductionmentioning

confidence: 99%

First principles application for mechanical properties of Ti-doped W particles enhanced U matrix composite

Jiang

Ru²,

et al. 2015

Rare Met.

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The stability, bonding, work of adhesion and electronic structure of the U/W interface with and without Ti were investigated by first principles to explore the mechanical properties of W particles enhanced U-Ti alloy matrix composite as a construction material. The calculated results indicate that the preferable orientation of the U/W interfacial structure is (001) U /(110) W crystallographic plane, Ti atoms originating from U slab are prone to diffuse into W slab through the interface, and additional Ti in U matrix is the stronger adhesion to W, with an ideal work of adhesion of 6.93 JÁm -2 for U-Ti/W interface, relative to the value of 6.72 JÁm -2 for clean U/W interface. The stronger adhesion performance is due to the increase in valence electron hybridization for U-Ti/W compared with U/W interface, as evidenced by the characteristic of the local density of states for the interfacial atoms.

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Effects of interface formation kinetics on the microstructural properties of wear-resistant metal–matrix composites

Cited by 23 publications

References 24 publications

Influence of technological parameters on evolution of phases in Al-CMA composites prepared by powder metallurgy

Influence of technological parameters on evolution of phases in Al-CMA composites prepared by powder metallurgy

Thermomechanical Wear Testing of Metal Matrix Composite Cladding for Potential Application in Hot Rolling Mills

First principles application for mechanical properties of Ti-doped W particles enhanced U matrix composite

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