Experimental investigation on the fatigue and fracture properties of a fine pearlitic rail steel
This study reports an experimental investigation of the fatigue and fracture resistance of R350HT, a heat-treated pearlitic rail steel with refined microstructure used in rails. Monotonic tensile, rotating bending, linear elastic plane strain fracture toughness, and fatigue crack growth rate tests a...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2024-07-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | https://www.fracturae.com/index.php/fis/article/view/4836/4052 |
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| author | D. Leonetti B. Schotsman |
| author_facet | D. Leonetti B. Schotsman |
| author_sort | D. Leonetti |
| collection | DOAJ |
| description | This study reports an experimental investigation of the fatigue and fracture resistance of R350HT, a heat-treated pearlitic rail steel with refined microstructure used in rails. Monotonic tensile, rotating bending, linear elastic plane strain fracture toughness, and fatigue crack growth rate tests are presented. The results are used to outline the basic properties and are corroborated by fractographic investigation. This enables the identification of the dominant type of fracture. Regarding fatigue and fracture resistance, the investigated material shows similar properties as other pearlitic rail steels, such as R260. At room temperature, the dominating fracture is of brittle cleavage type, showing some ductile regions associated with pro-eutectoid. |
| format | Article |
| id | doaj-art-81787d5490474f50b0794cebcfe10cbb |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2024-07-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-81787d5490474f50b0794cebcfe10cbb2025-02-03T10:04:36ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932024-07-01186914215310.3221/IGF-ESIS.69.1110.3221/IGF-ESIS.69.11Experimental investigation on the fatigue and fracture properties of a fine pearlitic rail steelD. LeonettiB. SchotsmanThis study reports an experimental investigation of the fatigue and fracture resistance of R350HT, a heat-treated pearlitic rail steel with refined microstructure used in rails. Monotonic tensile, rotating bending, linear elastic plane strain fracture toughness, and fatigue crack growth rate tests are presented. The results are used to outline the basic properties and are corroborated by fractographic investigation. This enables the identification of the dominant type of fracture. Regarding fatigue and fracture resistance, the investigated material shows similar properties as other pearlitic rail steels, such as R260. At room temperature, the dominating fracture is of brittle cleavage type, showing some ductile regions associated with pro-eutectoid.https://www.fracturae.com/index.php/fis/article/view/4836/4052r350ht rail steelfatigue crack growthrotating bendingfracture toughness |
| spellingShingle | D. Leonetti B. Schotsman Experimental investigation on the fatigue and fracture properties of a fine pearlitic rail steel Fracture and Structural Integrity r350ht rail steel fatigue crack growth rotating bending fracture toughness |
| title | Experimental investigation on the fatigue and fracture properties of a fine pearlitic rail steel |
| title_full | Experimental investigation on the fatigue and fracture properties of a fine pearlitic rail steel |
| title_fullStr | Experimental investigation on the fatigue and fracture properties of a fine pearlitic rail steel |
| title_full_unstemmed | Experimental investigation on the fatigue and fracture properties of a fine pearlitic rail steel |
| title_short | Experimental investigation on the fatigue and fracture properties of a fine pearlitic rail steel |
| title_sort | experimental investigation on the fatigue and fracture properties of a fine pearlitic rail steel |
| topic | r350ht rail steel fatigue crack growth rotating bending fracture toughness |
| url | https://www.fracturae.com/index.php/fis/article/view/4836/4052 |
| work_keys_str_mv | AT dleonetti experimentalinvestigationonthefatigueandfracturepropertiesofafinepearliticrailsteel AT bschotsman experimentalinvestigationonthefatigueandfracturepropertiesofafinepearliticrailsteel |