Fatigue Cracks in Steel

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Metal Failure Analysis".

Deadline for manuscript submissions: closed (1 May 2022) | Viewed by 4502

Special Issue Editors


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Guest Editor
Fracture & Structural Integrity Research Group (FSIRG), Campus Viriato, University of Salamanca (USAL) E.P.S., Avda. Requejo 33, 49022 Zamora, Spain
Interests: fatigue; fracture; damage; structural integrity; environmentally assisted cracking; stress corrosion cracking; hydrogen assisted cracking; hydrogen embrittlement; wire drawing; plasticity in steel; ferrite; cementite; pearlite; carbon steels; high-strength steels
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Fracture & Structural Integrity Research Group (FSIRG), University of Salamanca (USAL), Campus Viriato, Avda Requejo 33, 49022 Zamora, Spain
Interests: material characterization; materials; mechanical properties; finite element analysis; mechanical behavior of materials; mechanical testing; stress analysis; materials testing; metals; fracture mechanics; metallurgical engineering; engineering drawing; failure analysis; corrosion testing; finite element method; plasticity; technical drawing; steel corrosion testing; experimental mechanics; computational analysis; micromechanics; corrosion engineering; micromechanics of materials; fractography; corrosion science; steelmaking; material testing; fatigue; fracture strength

E-Mail Website
Guest Editor
Fracture & Structural Integrity Research Group (FSIRG), Campus Viriato, University of Salamanca (USAL) E.P.S., Avda. Requejo 33, 49022 Zamora, Spain
Interests: material characterization; materials; mechanical properties; finite element analysis; mechanical behavior of materials; mechanical testing; stress analysis; materials testing; metals; fracture mechanics; metallurgical engineering; engineering drawing; failure analysis; corrosion testing; finite element method; plasticity; technical drawing; steel corrosion testing; experimental mechanics; computational analysis; micromechanics; corrosion engineering; micromechanics of materials; fractography; corrosion science; steelmaking; material testing; fatigue; fracture strength
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Subcritical cracking of materials under fatigue (cyclic) loading is a problem of major concern in engineering due to the possibility of structural integrity loss when fatigue cracks develop in materials. The particular case of steel represents a topic of special importance due to the magnitude of steel production in the world, that makes it the main structural material.

This Special Issue, “Fatigue Cracks in Steel”, is dedicated to the latest scientific achievements in the field of crack propagation in steel under cyclic loading. Both reviews and articles are welcome, together with technical notes. This issue welcomes contributions of any kind in the field of fatigue crack growth in steels. All approaches will be considered, including theoretical, numerical, and experimental techniques. Any phase of the phenomenon of cracking can be analyzed, i.e., from the initiation to the propagation stage, and any environment can be highlighted, including aggressive or corrosive media.

It is our pleasure to invite you to submit a manuscript for this Special Issue.

Dr. Beatriz González  
Dr. Juan-Carlos Matos
Prof. Dr. Jesús Toribio
Guest Editors

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Keywords

  • steel
  • fatigue cracks
  • crack initiation
  • crack propagation
  • crack paths
  • environmentally assisted fatigue
  • corrosion fatigue

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Published Papers (1 paper)

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Research

16 pages, 11204 KiB  
Article
Fatigue Crack Initiation and Propagation at High Temperature of New-Generation Bearing Steel
by Zhiwei Wu, Maosheng Yang and Kunyu Zhao
Metals 2021, 11(1), 25; https://doi.org/10.3390/met11010025 - 25 Dec 2020
Cited by 12 | Viewed by 3388
Abstract
The new generation of bearing steel has good comprehensive properties, which can satisfy most of the requirements of bearing steel in a complex environment. In the presented work, fatigue properties of 15Cr14Co12Mo5Ni2 bearing steel have been investigated by means of rotating bending fatigue [...] Read more.
The new generation of bearing steel has good comprehensive properties, which can satisfy most of the requirements of bearing steel in a complex environment. In the presented work, fatigue properties of 15Cr14Co12Mo5Ni2 bearing steel have been investigated by means of rotating bending fatigue tests on smooth bar specimens after carburization and heat treatment. Optical microscope, scanning electron microscopy, electron backscatter diffraction, and Image-Pro Plus software were used to analyze the fracture, microstructure, and carbides. The results suggest that the fatigue strength at room temperature and 500 °C is 1027 MPa and 585 MPa, respectively. Scanning electron micrographic observations on the fracture surface of the fatigue specimens at 500 °C show that fatigue cracks usually initiate from voids in the carburized case and oxide layer on the surface of steel. The failure mode in the carburized case is a quasi-cleavage fracture, and with the increase of crack propagation depth, the failure mode gradually changes to fatigue and creep-fatigue interaction. With the increase of the distance from the surface, the size of the martensite block decreases and the fracture surface shows great fluctuation. Full article
(This article belongs to the Special Issue Fatigue Cracks in Steel)
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