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Metals
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Fatigue and Fracture Mechanics of Metals
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Fatigue and Fracture Mechanics of Metals

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

Deadline for manuscript submissions: closed (31 October 2021) | Viewed by 8724

Special Issue Editors

Dr. Mauro Madia

E-Mail Website
Guest Editor
Bundesanstalt für Materialforschung und -prüfung (BAM), Berlin, Germany
Interests: fatigue; fracture mechanics; fatigue crack propagation; structural integrity
Prof. Dr. Luis Filipe Borrego

E-Mail Website
Guest Editor
Department of Mechanical Engineering, Polytechnic Institute of Coimbra, Coimbra, Portugal
Interests: fatigue; fracture mechanics; fatigue crack propagation; crack closure; additive manufacturing; structural integrity
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Fatigue and Fracture Mechanics of Metals includes a vast area of knowledge of the mechanical behavior of materials, of vital importance in the safe design of machine elements and in the proper selection of materials. Despite the intense research effort developed over the years in this area of knowledge, the recent demands of the market and the issues related to environmental problems pose new challenges, which need to be addressed.

Recent new materials and technologies (e.g., additive manufacturing) are being developed and increasingly used in structural components for many industries, such as aerospace, automobile, goods, and medical devices, in order to obtain safe components and row materials savings. Safe design in many of these applications needs a thorough knowledge of the fatigue and fracture response.

This Special Issue aims at providing a wide set of articles on various aspects of fatigue and fracture of metals. It is intended that this open access Issue will provide a place to get comprehensive information about the current state-of-the art for fatigue and fracture of new materials and manufacturing processes. Articles on experimental and modelling aspects of fatigue and fracture related to the following topics are particularly welcome: 

  • Additively manufactured metals
  • Novel joining techniques of mechanical parts (e.g., adhesive bonding, laser and friction stir welding)
  • Surface modification technological processes (e.g., shot peening)

Dr. Mauro Madia
Prof. Luis Filipe Borrego
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Metals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Fatigue
  • Fracture
  • Fracture Mechanics
  • Fatigue Crack Propagation
  • Cyclic loading
  • Structural integrity
  • Metals and Alloys
  • Additive manufacturing
  • Properties

Published Papers (4 papers)

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Research

15 pages, 5541 KiB  
Article
Fatigue and Fracture Behavior of Cryogenic Materials Applied to LNG Fuel Storage Tanks for Coastal Ships
by Tae-Yeob Kim, Sung-Won Yoon, Ji-Hoon Kim and Myung-Hyun Kim
Metals 2021, 11(12), 1899; https://doi.org/10.3390/met11121899 - 25 Nov 2021
Cited by 6 | Viewed by 2729
Abstract
The aim of this study is to investigate the applicability of automatic plasma arc welding (PAW) to cryogenic materials used in liquefied natural gas (LNG) fuel storage tanks based on experimental data. The mechanical properties of the materials were tested at room and [...] Read more.
The aim of this study is to investigate the applicability of automatic plasma arc welding (PAW) to cryogenic materials used in liquefied natural gas (LNG) fuel storage tanks based on experimental data. The mechanical properties of the materials were tested at room and cryogenic temperatures to investigate the fatigue and fracture performances of weld joints made by PAW. In addition, the influence of welding parameters on the welded joints such as material types and temperature were considered in this experimental study. Based on the results obtained by this experimental study, it was observed that the experimental results of all materials at room and cryogenic temperatures satisfied all the requirements of each mechanical test. Finally, we propose the experimental results of PAW that can be used in the structural design of LNG fuel storage tank applications. Full article
(This article belongs to the Special Issue Fatigue and Fracture Mechanics of Metals)
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12 pages, 4214 KiB  
Article
Fatigue Behavior of Hybrid Components Containing Maraging Steel Parts Produced by Laser Powder Bed Fusion
by Luís Santos, Joel de Jesus, Luís Borrego, José A. M. Ferreira, Rui F. Fernandes, José D. M. da Costa and Carlos Capela
Metals 2021, 11(5), 835; https://doi.org/10.3390/met11050835 - 19 May 2021
Cited by 1 | Viewed by 1877
Abstract
This investigation concerns about of fatigue behavior under controlled loading and under strain control for hybrid specimens with parts produced with conventional processes in steel AISI H13 and the stainless steel AISI 420 and the rest part produced by laser powder bed fusion [...] Read more.
This investigation concerns about of fatigue behavior under controlled loading and under strain control for hybrid specimens with parts produced with conventional processes in steel AISI H13 and the stainless steel AISI 420 and the rest part produced by laser powder bed fusion in AISI 18Ni300 steel. The controlled loading tests were performed in constant and variable amplitude. Fatigue failure of hybrid samples occurs mostly in laser-melted parts, initiated around the surface, in many cases with multi-nucleation and propagated predominantly between the deposited layers. Fatigue strength of hybrid parts, tested under displacement control is similar, but for specimens tested under load control the fatigue strength the fatigue strength of hybrid specimens is progressively lesser than laser powder bed fusion samples. Despite a tendency to obtain conservative predictions, Miner’s law predicts reasonably the fatigue lives under block loadings. The interface between materials presented an excellent joining and fatigue strength because the fatigue failure of hybrid samples occurred mostly in laser melted parts out of the interface. Full article
(This article belongs to the Special Issue Fatigue and Fracture Mechanics of Metals)
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12 pages, 3374 KiB  
Article
Hydrogen-Assisted Fatigue Propagation in Corner Cracks at Holes Located in Plates under Tensile Loading
by Jesús Toribio, Beatriz González and Juan-Carlos Matos
Metals 2021, 11(4), 552; https://doi.org/10.3390/met11040552 - 29 Mar 2021
Cited by 1 | Viewed by 1483
Abstract
In this study, hydrogen-assisted fatigue propagation (a kind of corrosion fatigue phenomenon) in corner cracks at holes located in plates under tensile loading was studied, the results compared with those obtained for propagation by fatigue in air. To this end, numerical modeling was [...] Read more.
In this study, hydrogen-assisted fatigue propagation (a kind of corrosion fatigue phenomenon) in corner cracks at holes located in plates under tensile loading was studied, the results compared with those obtained for propagation by fatigue in air. To this end, numerical modeling was carried out for the case studied to evaluate the advance of the crack front based on the Paris equation and the stress intensity factors (SIFs) obtained by Raju and Newman. The results showed that the cracks tended toward a preferential propagation path in their growth, the effect of the presence of the stress concentrator on the preferential fatigue propagation path being more pronounced in the crack growth by fatigue in air than in the crack growth by corrosion fatigue. Full article
(This article belongs to the Special Issue Fatigue and Fracture Mechanics of Metals)
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9 pages, 4346 KiB  
Article
Influence of Laser Surface Texturing Sequence on Fatigue Properties of Coated Cold Work Tool Steel
by Marko Sedlaček, Agnieszka Zuzanna Guštin and Borut Žužek
Metals 2020, 10(12), 1636; https://doi.org/10.3390/met10121636 - 5 Dec 2020
Cited by 2 | Viewed by 1705
Abstract
The aim of this research was to investigate the influence of laser surface texturing sequence on the fatigue properties of cold-work tool steel. For this reason, polished hourglass-type test specimens made from cold-work tool steel (K890) were surface textured using laser texturing. Surface [...] Read more.
The aim of this research was to investigate the influence of laser surface texturing sequence on the fatigue properties of cold-work tool steel. For this reason, polished hourglass-type test specimens made from cold-work tool steel (K890) were surface textured using laser texturing. Surface textures were introduced before and after hard coating deposition (TiAlN) with the aim to investigate the sequence of surface-texturing process. It was found that coating deposition prolongs the fatigue life. The fatigue life behaviour can be influenced also by the sequence of surface texturing. In the case when laser texturing is done after coating deposition, it suffers in fatigue life properties. From a lower magnification, a fractured surface looks like a quasi-ductile fracture, but a closer look reveals that there is very little plastic deformation and some small flat regions can be seen with clear evidence of a brittle fracture mechanism with cleavage. Due to low fracture toughness of investigated steel, no fatigue striations of crack growth steps were found on the fractured surfaces. Full article
(This article belongs to the Special Issue Fatigue and Fracture Mechanics of Metals)
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