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Healing of Fatigue Crack in 1045 Steel by Using Eddy Current Treatment
In order to investigate the methods to heal fatigue cracks in metals, tubular specimens of 1045 steel with axial and radial fatigue cracks were treated under the eddy current. The optical microscope was employed to examine the change of fatigue cracks of specimens before and after the eddy current t...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5509091/ https://www.ncbi.nlm.nih.gov/pubmed/28773761 http://dx.doi.org/10.3390/ma9080641 |
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author | Yang, Chuan Xu, Wenchen Guo, Bin Shan, Debin Zhang, Jian |
author_facet | Yang, Chuan Xu, Wenchen Guo, Bin Shan, Debin Zhang, Jian |
author_sort | Yang, Chuan |
collection | PubMed |
description | In order to investigate the methods to heal fatigue cracks in metals, tubular specimens of 1045 steel with axial and radial fatigue cracks were treated under the eddy current. The optical microscope was employed to examine the change of fatigue cracks of specimens before and after the eddy current treatment. The results show that the fatigue cracks along the axial direction of the specimen could be healed effectively in the fatigue crack initiation zone and the crack tip zone under the eddy current treatment, and the healing could occur within a very short time. The voltage breakdown and the transient thermal compressive stress caused by the detouring of eddy current around the fatigue crack were the main factors contributing to the healing in the fatigue crack initiation zone and the crack tip zone, respectively. Eddy current treatment may be a novel and effective method for crack healing. |
format | Online Article Text |
id | pubmed-5509091 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-55090912017-07-28 Healing of Fatigue Crack in 1045 Steel by Using Eddy Current Treatment Yang, Chuan Xu, Wenchen Guo, Bin Shan, Debin Zhang, Jian Materials (Basel) Article In order to investigate the methods to heal fatigue cracks in metals, tubular specimens of 1045 steel with axial and radial fatigue cracks were treated under the eddy current. The optical microscope was employed to examine the change of fatigue cracks of specimens before and after the eddy current treatment. The results show that the fatigue cracks along the axial direction of the specimen could be healed effectively in the fatigue crack initiation zone and the crack tip zone under the eddy current treatment, and the healing could occur within a very short time. The voltage breakdown and the transient thermal compressive stress caused by the detouring of eddy current around the fatigue crack were the main factors contributing to the healing in the fatigue crack initiation zone and the crack tip zone, respectively. Eddy current treatment may be a novel and effective method for crack healing. MDPI 2016-07-29 /pmc/articles/PMC5509091/ /pubmed/28773761 http://dx.doi.org/10.3390/ma9080641 Text en © 2016 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Yang, Chuan Xu, Wenchen Guo, Bin Shan, Debin Zhang, Jian Healing of Fatigue Crack in 1045 Steel by Using Eddy Current Treatment |
title | Healing of Fatigue Crack in 1045 Steel by Using Eddy Current Treatment |
title_full | Healing of Fatigue Crack in 1045 Steel by Using Eddy Current Treatment |
title_fullStr | Healing of Fatigue Crack in 1045 Steel by Using Eddy Current Treatment |
title_full_unstemmed | Healing of Fatigue Crack in 1045 Steel by Using Eddy Current Treatment |
title_short | Healing of Fatigue Crack in 1045 Steel by Using Eddy Current Treatment |
title_sort | healing of fatigue crack in 1045 steel by using eddy current treatment |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5509091/ https://www.ncbi.nlm.nih.gov/pubmed/28773761 http://dx.doi.org/10.3390/ma9080641 |
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