Bainitic steel grade for solid wheels: metallurgical, mechanical, and in-service testing
Bainitic steel grades generally have superior rolling contact and thermal fatigue resistances, but poorer wear characteristics when compared with ‘conventional’ pearlitic steel wheels. To improve the wear characteristics, the manufacturing process of bainitic materials needs to be carefully controll...
Published in: | Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit |
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Language: | English |
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crsagepubl:10.1243/09544097jrrt217 2024-10-13T14:08:53+00:00 Bainitic steel grade for solid wheels: metallurgical, mechanical, and in-service testing Gianni, A Ghidini, A Karlsson, T Ekberg, A 2008 http://dx.doi.org/10.1243/09544097jrrt217 https://journals.sagepub.com/doi/pdf/10.1243/09544097JRRT217 en eng SAGE Publications https://journals.sagepub.com/page/policies/text-and-data-mining-license Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit volume 223, issue 2, page 163-171 ISSN 0954-4097 2041-3017 journal-article 2008 crsagepubl https://doi.org/10.1243/09544097jrrt217 2024-09-24T04:14:32Z Bainitic steel grades generally have superior rolling contact and thermal fatigue resistances, but poorer wear characteristics when compared with ‘conventional’ pearlitic steel wheels. To improve the wear characteristics, the manufacturing process of bainitic materials needs to be carefully controlled. In this article, the manufacturing process of the ‘MICRALOS’ bainitic steel grade has been described. The main focus is on metallurgical testing activities performed in order to compare the new steel grade with standard pearlitic steels and to predict the service behaviour of the solid bainitic wheels. Further, on-going field tests on the iron ore line between Luleå and Narvik have been reported, with details about measurement methods and results. The performance of the wheels is reviewed and compared with the current scientific knowledge of bainitic steel grades and the deterioration of heavy haul wheels. Finally, benefits of and challenges for bainitic wheels in general and for the MICRALOS grade wheels in particular will be discussed. Article in Journal/Newspaper Luleå Luleå Luleå Narvik Narvik SAGE Publications Narvik ENVELOPE(17.427,17.427,68.438,68.438) Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 223 2 163 171 |
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SAGE Publications |
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crsagepubl |
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English |
description |
Bainitic steel grades generally have superior rolling contact and thermal fatigue resistances, but poorer wear characteristics when compared with ‘conventional’ pearlitic steel wheels. To improve the wear characteristics, the manufacturing process of bainitic materials needs to be carefully controlled. In this article, the manufacturing process of the ‘MICRALOS’ bainitic steel grade has been described. The main focus is on metallurgical testing activities performed in order to compare the new steel grade with standard pearlitic steels and to predict the service behaviour of the solid bainitic wheels. Further, on-going field tests on the iron ore line between Luleå and Narvik have been reported, with details about measurement methods and results. The performance of the wheels is reviewed and compared with the current scientific knowledge of bainitic steel grades and the deterioration of heavy haul wheels. Finally, benefits of and challenges for bainitic wheels in general and for the MICRALOS grade wheels in particular will be discussed. |
format |
Article in Journal/Newspaper |
author |
Gianni, A Ghidini, A Karlsson, T Ekberg, A |
spellingShingle |
Gianni, A Ghidini, A Karlsson, T Ekberg, A Bainitic steel grade for solid wheels: metallurgical, mechanical, and in-service testing |
author_facet |
Gianni, A Ghidini, A Karlsson, T Ekberg, A |
author_sort |
Gianni, A |
title |
Bainitic steel grade for solid wheels: metallurgical, mechanical, and in-service testing |
title_short |
Bainitic steel grade for solid wheels: metallurgical, mechanical, and in-service testing |
title_full |
Bainitic steel grade for solid wheels: metallurgical, mechanical, and in-service testing |
title_fullStr |
Bainitic steel grade for solid wheels: metallurgical, mechanical, and in-service testing |
title_full_unstemmed |
Bainitic steel grade for solid wheels: metallurgical, mechanical, and in-service testing |
title_sort |
bainitic steel grade for solid wheels: metallurgical, mechanical, and in-service testing |
publisher |
SAGE Publications |
publishDate |
2008 |
url |
http://dx.doi.org/10.1243/09544097jrrt217 https://journals.sagepub.com/doi/pdf/10.1243/09544097JRRT217 |
long_lat |
ENVELOPE(17.427,17.427,68.438,68.438) |
geographic |
Narvik |
geographic_facet |
Narvik |
genre |
Luleå Luleå Luleå Narvik Narvik |
genre_facet |
Luleå Luleå Luleå Narvik Narvik |
op_source |
Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit volume 223, issue 2, page 163-171 ISSN 0954-4097 2041-3017 |
op_rights |
https://journals.sagepub.com/page/policies/text-and-data-mining-license |
op_doi |
https://doi.org/10.1243/09544097jrrt217 |
container_title |
Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit |
container_volume |
223 |
container_issue |
2 |
container_start_page |
163 |
op_container_end_page |
171 |
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1812815676976398336 |