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- Dimitrios, NikasKarlstads universitet,Institutionen för ingenjörsvetenskap och fysik (from 2013),Chalmers University of Technology,Chalmers tekniska högskola (author)
Effect of annealing on microstructure in railway wheel steel
- Article/chapterEnglish2022
Publisher, publication year, extent ...
- Institute of Physics Publishing (IOPP),2022
- electronicrdacarrier
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- LIBRIS-ID:oai:DiVA.org:kau-92290
- https://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-92290URI
- https://doi.org/10.1088/1757-899X/1249/1/012059DOI
- https://research.chalmers.se/publication/532634URI
Supplementary language notes
- Language:English
- Summary in:English
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Notes
- Railway wheels are commonly made from medium carbon steels (similar to 0.55 wt.% C), heat treated to a near pearlitic microstructure with 5-10% pro-eutectoid ferrite. During the operation of freight trains, where block brakes are used, high thermal loads occur together with the high contact stresses, which combined can affect the mechanical properties of the material. In this study, the effects of annealing on local microstructure and mechanical properties in pearlitic railway wheel steel were investigated using electron microscopy and micro-hardness. It is found that after annealing at 650 degrees C, the room temperature hardness reduces about 25%, accompanied by significant spheroidization of cementite in the pearlitic colonies, though the size and the orientation gradients of the pearlitic colonies have not changed much. The relationship between the microstructural changes and the mechanical properties are discussed.
Subject headings and genre
- TEKNIK OCH TEKNOLOGIER Materialteknik hsv//swe
- ENGINEERING AND TECHNOLOGY Materials Engineering hsv//eng
- TEKNIK OCH TEKNOLOGIER Materialteknik Bearbetnings-, yt- och fogningsteknik hsv//swe
- ENGINEERING AND TECHNOLOGY Materials Engineering Manufacturing, Surface and Joining Technology hsv//eng
- TEKNIK OCH TEKNOLOGIER Materialteknik Annan materialteknik hsv//swe
- ENGINEERING AND TECHNOLOGY Materials Engineering Other Materials Engineering hsv//eng
- TEKNIK OCH TEKNOLOGIER Materialteknik Metallurgi och metalliska material hsv//swe
- ENGINEERING AND TECHNOLOGY Materials Engineering Metallurgy and Metallic Materials hsv//eng
- Materialteknik
- Materials Engineering
- Physics
- Fysik
Added entries (persons, corporate bodies, meetings, titles ...)
- Zhang, YubinTechnical University of Denmark, DEN,Danmarks Tekniske Universitet (author)
- Ahlström, Johan,1969Chalmers University of Technology,Chalmers tekniska högskola(Swepub:cth)jnah (author)
- Karlstads universitetInstitutionen för ingenjörsvetenskap och fysik (from 2013) (creator_code:org_t)
Related titles
- In:42Nd Riso International Symposium On Materials Science: Institute of Physics Publishing (IOPP)1249
- In:42ND RISO INTERNATIONAL SYMPOSIUM ON MATERIALS SCIENCE: MICROSTRUCTURAL VARIABILITY: PROCESSING, ANALYSIS, MECHANISMS AND PROPERTIES: Institute of Physics Publishing (IOPP)12491757-8981
Internet link
- https://doi.org/10.1088/1757-899X/1249/1/012059Fulltext
- https://kau.diva-portal.org/smash/get/diva2:1706636/FULLTEXT01.pdffulltext:print
- https://research.chalmers.se/publication/532634/file/532634_Fulltext.pdfFULLTEXT
- https://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-92290
- https://doi.org/10.1088/1757-899X/1249/1/012059
- https://research.chalmers.se/publication/532634
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