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Friction, wear, and...
Friction, wear, and airborne particle emissions from rail-wheel contact with laser cladded overlays-A pin-disc tribometer simulation
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- Ali, Nashit (författare)
- Univ Bologna, Dept Ind Engn, Res Lab, Via Umberto Terracini 24, I-40131 Bologna, Italy.,University Of Bologna, Bologna, Italy
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- Olofsson, Ulf, 1962- (författare)
- KTH,System- och komponentdesign,KTH Royal Institute of Technology System and Component Design, Stockholm, Sweden
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- Dizdar, Senad, 1965- (författare)
- Högskolan i Halmstad,Akademin för företagande, innovation och hållbarhet
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Univ Bologna, Dept Ind Engn, Res Lab, Via Umberto Terracini 24, I-40131 Bologna, Italy University Of Bologna, Bologna, Italy (creator_code:org_t)
- Amsterdam : Elsevier BV, 2023
- 2023
- Engelska.
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Ingår i: Wear. - Amsterdam : Elsevier BV. - 0043-1648 .- 1873-2577. ; 518
- Relaterad länk:
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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
- The present study uses a pin-on-disc tribometer to evaluate friction, wear, and airborne particle emissions for a rail-wheel contact. Test pins from UIC60 900A rail carbon steels were in contact with three types of test discs surfaces: R7 wheel carbon steel, laser cladding overlayed martensitic stainless steel, and laser cladding overlayed Ni-based-8% MnS self-lubricating alloy. Test results show about halving of the coefficient of friction, 0.42 to 0.22, and one ten-power lower specific pin and disc wear of discs with self-lubricating overlay compared to standard railway carbon steel contacts. Using stainless-steel overlayed discs also resulted in one ten-power lower specific disc wear, but pin wear is unchanged. Particle emission for the tests with discs with self-lubricating overlay is constant at almost 200 particles/cm3 while running in the distance is needed for the other tests. Almost all generated airborne wear particles were in the sub-100 nm range. The use of laser-cladded (LC) overlay reduced the number of airborne wear particles in the sub-100 nm range by more than a factor of 10.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Tribologi (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Tribology (hsv//eng)
Nyckelord
- Friction
- Wear
- Airborne particle emission
- Rail-wheel contact
- Laser cladding
- Solid lubricant
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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