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Metals
Special Issues
Fatigue Behavior Analysis of Metals and Alloys
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Fatigue Behavior Analysis of Metals and Alloys

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

Deadline for manuscript submissions: closed (30 November 2022) | Viewed by 5796

Special Issue Editors

Dr. Abílio M. P. De Jesus

E-Mail Website
Guest Editor
Department of Mechanical Engineering, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal
Interests: manufacturing processes; simulation; fracture mechanics
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Filippo Berto

E-Mail Website
Guest Editor
Department of Chemical Engineering, Materials and Environment, Sapienza University of Rome, 00184 Rome, Italy
Interests: fatigue and fracture behavior of materials; mechanical characterization; structural integrity of conventional and innovative materials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Understanding the fatigue behavior of metals and their alloys still is a major concern when applications subjected to dynamic loadings are envisaged. Challenges are raised either from materials side, with new alloys and processing technologies being continuously developed, as well as from the loadings side, where multiaxiality, mechanical-thermal interactions, complex variable amplitude loading, extreme cyclic loadings become very often in real applications. The understanding of the physics of the fatigue phenomena in the referred background and its accurate modeling are essential factors for the safe, efficient and resilient design of new mechanical components and structures. This Special Issue intends to gather original contributions aiming the investigation on the fatigue behavior of metals and alloys covering the following related topics:

  • Fatigue performance of new alloys;
  • Effects of manufacturing processes on fatigue behavior (additive, subtractive, etc);
  • Multiaxial fatigue;
  • Extreme low-cycle fatigue and very high-cycle fatigue;
  • Fatigue damage under variable amplitude loading;
  • Fatigue modeling covering various approaches (ex. Phenomenological, Microstructural based; Fracture Mechanics, Probabilistic Approaches);
  • Fretting fatigue;
  • Size effects;
  • Mechanical-thermal loads interactions;
  • Fatigue behavior of mechanical components and structural details;
  • Numerical simulation of fatigue damage.

Prof. Dr. Abílio M.P. De Jesus
Prof. Dr. Filippo Berto
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
  • Manufacturing Processes
  • Multiaxial Fatigue
  • Variable amplitude loading
  • Extreme Fatigue Regimes
  • Fretting fatigue
  • Mechanical-thermal interactions
  • Modelling
  • Numerical Simulation
  • Structural Components

Published Papers (2 papers)

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Research

14 pages, 2878 KiB  
Article
Novel Procedures for Sustainable Design in Structural Rehabilitation on Oversized Metal Structures
by Ștefan Mocanu, Laurențiu Rece, Adrian Burlacu, Virgil Florescu, Corneliu Ronțescu and Arina Modrea
Metals 2022, 12(7), 1107; https://0-doi-org.brum.beds.ac.uk/10.3390/met12071107 - 28 Jun 2022
Cited by 4 | Viewed by 1167
Abstract
This article includes several studies and advanced research carried out on the subject of large KANGUR-type port cranes, subjected to regular or interventional maintenance work; besides the beneficial effects for which they were intended, some undesirable effects were detected in terms of affecting [...] Read more.
This article includes several studies and advanced research carried out on the subject of large KANGUR-type port cranes, subjected to regular or interventional maintenance work; besides the beneficial effects for which they were intended, some undesirable effects were detected in terms of affecting safety in exploitation. The purpose of this paper is to identify the risk factors and to offer sustainable solutions for increasing operational safety and service life for the respective equipment, as well as for other similar fields of activity, including oversized structures. Following the theoretical studies and the experimental research carried out in situ that confirmed the validity of the theoretical models used, the article in conclusion provides specific and sustainable solutions as well as new methods of assessment, which combine the positive elements of the usual solutions, but in parallel, allow the elimination of the negative side effects that may occur in time. Hence, the article’s novelties also consist of a new approach to achieve structural interventions, resulting in the increase in the service life, and in parallel with that, the safety in operation of the respective equipment. Full article
(This article belongs to the Special Issue Fatigue Behavior Analysis of Metals and Alloys)
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18 pages, 8375 KiB  
Article
Fatigue Assessment of Inconel 625 Produced by Directed Energy Deposition from Miniaturized Specimens
by Felipe Klein Fiorentin, Duarte Maciel, Jorge Gil, Miguel Figueiredo, Filippo Berto and Abílio de Jesus
Metals 2022, 12(1), 156; https://0-doi-org.brum.beds.ac.uk/10.3390/met12010156 - 14 Jan 2022
Cited by 8 | Viewed by 2867
Abstract
In recent years, the industrial application of Inconel 625 has grown significantly. This material is a nickel-base alloy, which is well known for its chemical resistance and mechanical properties, especially in high-temperature environments. The fatigue performance of parts produced via Metallic Additive Manufacturing [...] Read more.
In recent years, the industrial application of Inconel 625 has grown significantly. This material is a nickel-base alloy, which is well known for its chemical resistance and mechanical properties, especially in high-temperature environments. The fatigue performance of parts produced via Metallic Additive Manufacturing (MAM) heavily rely on their manufacturing parameters. Therefore, it is important to characterize the properties of alloys produced by a given set of parameters. The present work proposes a methodology for characterization of the mechanical properties of MAM parts, including the material production parametrization by Laser Directed Energy Deposition (DED). The methodology consists of the testing of miniaturized specimens, after their production in DED, supported by a numerical model developed and validated by experimental data for stress calculation. An extensive mechanical characterization, with emphasis on high-cycle fatigue, of Inconel 625 produced via DED is herein discussed. The results obtained using miniaturized specimens were in good agreement with standard-sized specimens, therefore validating the applied methodology even in the case of some plastic effects. Regarding the high-cycle fatigue properties, the samples produced via DED presented good fatigue performance, comparable with other competing Metallic Additive Manufactured (MAMed) and conventionally manufactured materials. Full article
(This article belongs to the Special Issue Fatigue Behavior Analysis of Metals and Alloys)
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