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Wear between wheel ...
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Lyu, Yezhe,1987-KTH,Maskinkonstruktion (Inst.),System- Och Komponentdesign
(author)
Wear between wheel and rail:A pin-on-disc study of environmental conditions and iron oxides
- Article/chapterEnglish2015
Publisher, publication year, extent ...
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Elsevier,2015
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:kth-166984
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-166984URI
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https://doi.org/10.1016/j.wear.2015.02.057DOI
Supplementary language notes
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Language:English
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Summary in:English
Part of subdatabase
Classification
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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QC 20150622
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Railways operate in an open environment where temperature, humidity, and the oxidation conditions are subjected to change. An experimental investigation used a pin-on-disc machine to examine the influence of environmental conditions and iron oxides on the wear performance of the wheel-rail contact. The wear mechanisms were analyzed using scanning electron microscopy and found to be highly dependent on the environmental conditions. On clean contacts, adhesive wear is predominant under low-moisture conditions, becoming more serious with decreasing temperature. With high moisture and at room temperature (i.e., 20. °C and 10. °C) oxide flakes would self-produce and protect the pins from severe wear, as oxidative wear is the main wear mechanism. Samples experienced a transformation of the wear mechanism from adhesive to oxidative with increasing humidity on clean contacts. Complex three-body wear in abrasion form has been determined to dominate oxidized contacts. Under dry conditions, pins underwent severe wear appearing as delamination at 20. °C and crushed wear debris at 3. °C. Raising the moisture level helps the pins to avoid severe wear.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
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Zhu, YiKTH,Maskinkonstruktion (Inst.),Zhejiang University, China,System- Och Komponentdesign(Swepub:kth)u1d7d9hw
(author)
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Olofsson, UlfKTH,Maskinkonstruktion (Inst.),System- Och Komponentdesign(Swepub:kth)u10qpddv
(author)
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KTHMaskinkonstruktion (Inst.)
(creator_code:org_t)
Related titles
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In:Wear: Elsevier328-329, s. 277-2850043-16481873-2577
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