Study on the Influence of Compression Ratio on the Rail Contact Fatigue Resistance Property and Its Mechanism

Contact fatigue resistance properties of four commercial steel rails were systematically studied and compared. The contact fatigue limit cycles, fracture toughness, and fatigue crack growth rate of the corresponding rails with different compression ratios were tested and analyzed, which showed a clo...

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Autor principal:	Zhiqiang Li
Formato:	article
Lenguaje:	EN
Publicado:	Hindawi Limited 2021
Materias:	Computer applications to medicine. Medical informatics R858-859.7 Neurosciences. Biological psychiatry. Neuropsychiatry RC321-571
Acceso en línea:	https://doaj.org/article/8d8e3cf809f84fe0ab95d362e3bbffb0
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spelling	oai:doaj.org-article:8d8e3cf809f84fe0ab95d362e3bbffb02021-11-08T02:37:30ZStudy on the Influence of Compression Ratio on the Rail Contact Fatigue Resistance Property and Its Mechanism1687-527310.1155/2021/9057677https://doaj.org/article/8d8e3cf809f84fe0ab95d362e3bbffb02021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/9057677https://doaj.org/toc/1687-5273Contact fatigue resistance properties of four commercial steel rails were systematically studied and compared. The contact fatigue limit cycles, fracture toughness, and fatigue crack growth rate of the corresponding rails with different compression ratios were tested and analyzed, which showed a close relationship between them. Moreover, microstructures of the rails were carefully observed by using the TEM to elucidate the scientific mechanisms. Observations and obtained results indicated that pearlite lamellar spacing further decreased with the rise of compression ratio, which greatly and rightly contributed to the improved fatigue resistance property.Zhiqiang LiHindawi LimitedarticleComputer applications to medicine. Medical informaticsR858-859.7Neurosciences. Biological psychiatry. NeuropsychiatryRC321-571ENComputational Intelligence and Neuroscience, Vol 2021 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Computer applications to medicine. Medical informatics R858-859.7 Neurosciences. Biological psychiatry. Neuropsychiatry RC321-571
spellingShingle	Computer applications to medicine. Medical informatics R858-859.7 Neurosciences. Biological psychiatry. Neuropsychiatry RC321-571 Zhiqiang Li Study on the Influence of Compression Ratio on the Rail Contact Fatigue Resistance Property and Its Mechanism
description	Contact fatigue resistance properties of four commercial steel rails were systematically studied and compared. The contact fatigue limit cycles, fracture toughness, and fatigue crack growth rate of the corresponding rails with different compression ratios were tested and analyzed, which showed a close relationship between them. Moreover, microstructures of the rails were carefully observed by using the TEM to elucidate the scientific mechanisms. Observations and obtained results indicated that pearlite lamellar spacing further decreased with the rise of compression ratio, which greatly and rightly contributed to the improved fatigue resistance property.
format	article
author	Zhiqiang Li
author_facet	Zhiqiang Li
author_sort	Zhiqiang Li
title	Study on the Influence of Compression Ratio on the Rail Contact Fatigue Resistance Property and Its Mechanism
title_short	Study on the Influence of Compression Ratio on the Rail Contact Fatigue Resistance Property and Its Mechanism
title_full	Study on the Influence of Compression Ratio on the Rail Contact Fatigue Resistance Property and Its Mechanism
title_fullStr	Study on the Influence of Compression Ratio on the Rail Contact Fatigue Resistance Property and Its Mechanism
title_full_unstemmed	Study on the Influence of Compression Ratio on the Rail Contact Fatigue Resistance Property and Its Mechanism
title_sort	study on the influence of compression ratio on the rail contact fatigue resistance property and its mechanism
publisher	Hindawi Limited
publishDate	2021
url	https://doaj.org/article/8d8e3cf809f84fe0ab95d362e3bbffb0
work_keys_str_mv	AT zhiqiangli studyontheinfluenceofcompressionratioontherailcontactfatigueresistancepropertyanditsmechanism
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Study on the Influence of Compression Ratio on the Rail Contact Fatigue Resistance Property and Its Mechanism

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