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TRIBOLOGY OF THREE RAILWAY BRAKE BLOCK MATERIALS TESTED AGAINST RAILWAYWHEEL AT LOW TEMPERATURES
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Tribologi. (SKD)ORCID iD: 0000-0001-7560-6232
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Machine Elements. KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Tribologi. (System and Component Design)ORCID iD: 0000-0003-4447-3363
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Tribologi. (SKD)ORCID iD: 0000-0003-2489-0688
2018 (English)Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

Three railway brake block materials, i.e. cast iron, sintered and organic composite, were tested against railway wheel at10, 3, -10, -20 and -30 °C using a pin-on-disc tribometer with regards to the friction and wear performance. At -10 and -20 °C, cast iron tests yielded very high wear losses both on pin and disc samples and low friction coefficient. The largeamount of graphite worn off from the cast iron sample acted as a lubricant. Friction and wear of sintered material arenot sensitive to the change of temperature. Disc sample tested against organic composite at -30 °C showed negativewear loss, indicating that materials were added onto the surface.

Place, publisher, year, edition, pages
2018.
Keywords [en]
Brake block; Pin-on-disc; Friction; Wear.
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Research subject
Machine Design
Identifiers
URN: urn:nbn:se:kth:diva-249962OAI: oai:DiVA.org:kth-249962DiVA, id: diva2:1306566
Conference
The 18th Nordic Symposium on Tribology – NORDTRIB 201818-21 June 2018, Uppsala University, Uppsala, Sweden
Note

QC 20190522

Available from: 2019-04-24 Created: 2019-04-24 Last updated: 2019-05-22Bibliographically approved

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Lyu, YezheBergseth, EllenOlofsson, Ulf

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