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Sliding and abrasiv...
Sliding and abrasive wear behaviour of HVOF- and HVAF-sprayed Cr3C2-NiCr hardmetal coatings
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- Bolelli, G. (författare)
- University of Modena and Reggio Emilia, Dipartimento di Ingegneria 'Enzo Ferrari', Via P. Vivarelli 10/1, Modena, MO, Italy
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- Berger, L.-M. (författare)
- Fraunhofer-Institut für Werkstoff- und Strahltechnik (IWS), Winterbergstr. 28, Dresden, Germany
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- Börner, T. (författare)
- Fraunhofer-Institut für Werkstoff- und Strahltechnik (IWS), Winterbergstr. 28, Dresden, Germany
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- Koivuluoto, H. (författare)
- Tampere University of Technology, Department of Materials Science, Korkeakoulunkatu 6, Tampere, Finland
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- Matikainen, V. (författare)
- Tampere University of Technology, Department of Materials Science, Korkeakoulunkatu 6, Tampere, Finland
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- Lusvarghi, L. (författare)
- University of Modena and Reggio Emilia, Dipartimento di Ingegneria 'Enzo Ferrari', Via P. Vivarelli 10/1, Modena, MO, Italy
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- Lyphout, Christophe, 1981- (författare)
- Högskolan Väst,Avd för industriell produktion,PTW
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- Markocsan, Nicolaie, 1967- (författare)
- Högskolan Väst,Avd för industriell produktion,PTW
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- Nylén, Per, 1960- (författare)
- Högskolan Väst,Forskningsmiljön produktionsteknik(PTW),PTW
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- Sassatelli, P. (författare)
- University of Modena and Reggio Emilia, Dipartimento di Ingegneria 'Enzo Ferrari', Via P. Vivarelli 10/1, Modena, MO, Italy
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- Trache, R. (författare)
- Fraunhofer-Institut für Werkstoff- und Strahltechnik (IWS), Winterbergstr. 28, Dresden, Germany
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- Vuoristo, P.c (författare)
- Tampere University of Technology, Department of Materials Science, Korkeakoulunkatu 6, Tampere, Finlan
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University of Modena and Reggio Emilia, Dipartimento di Ingegneria 'Enzo Ferrari', Via P Vivarelli 10/1, Modena, MO, Italy Fraunhofer-Institut für Werkstoff- und Strahltechnik (IWS), Winterbergstr. 28, Dresden, Germany (creator_code:org_t)
- Elsevier BV, 2016
- 2016
- Engelska.
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Ingår i: Wear. - : Elsevier BV. - 0043-1648 .- 1873-2577. ; 358-359, s. 32-50
- Relaterad länk:
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https://iris.unimore...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- This paper provides a comprehensive characterisation of HVOF- and HVAF-sprayed Cr3C2–25 wt.% NiCr hardmetal coatings. One commercial powder composition with two different particle size distributions was processed using five HVOF and HVAF thermal spray systems.All coatings contain less Cr3C2 than the feedstock powder, possibly due to the rebound of some Cr3C2-rich particles during high-velocity impact onto the substrate.Dry sand-rubber wheel abrasive wear testing causes both grooving and pull-out of splat fragments. Mass losses depend on inter- and intra-lamellar cohesion, being higher (≥70 mg after a wear distance of 5904 m) for the coatings deposited with the coarser feedstock powder or with one type of HVAF torch.Sliding wear at room temperature against alumina involves shallower abrasive grooving, small-scale delamination and carbide pull-outs, and it is controlled by intra-lamellar cohesion. The coatings obtained from the fine feedstock powder exhibit the lowest wear rates (≈5x10−6 mm3/(Nm)). At 400 °C, abrasive grooving dominates the sliding wear behaviour; wear rates increase by one order of magnitude but friction coefficients decrease from ≈0.7 to ≈0.5. The thermal expansion coefficient of the coatings (11.08x10−6 °C−1 in the 30–400 °C range) is sufficiently close to that of the steel substrate (14.23x10−6 °C−1) to avoid macro-cracking
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Bearbetnings-, yt- och fogningsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Manufacturing, Surface and Joining Technology (hsv//eng)
Nyckelord
- Abrasion
- Abrasives
- Adhesion
- Alumina
- Carbides
- Cermets
- Coatings
- Failure (mechanical)
- Feedstocks
- Friction
- Indentation
- Particle size
- Powder coatings
- Rubber testing
- Sprayed coatings
- Thermal expansion
- Wear of materials
- Friction coefficients
- High temperature
- High-velocity impact
- Sliding wear
- Sliding wear behaviour
- Thermal expansion coefficients
- Thermal spray coatings
- Three body abrasion
- HVOF thermal spraying
- Produktions- och materialteknik
- Manufacturing and materials engineering
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Bolelli, G.
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Berger, L.-M.
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Börner, T.
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Koivuluoto, H.
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Matikainen, V.
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Lusvarghi, L.
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visa fler...
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Lyphout, Christo ...
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Markocsan, Nicol ...
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Nylén, Per, 1960 ...
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Sassatelli, P.
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Trache, R.
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Vuoristo, P.c
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visa färre...
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