Failure Behavior in 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 June 2023) | Viewed by 1576

Special Issue Editor


E-Mail Website
Guest Editor
Department of Mechanical Engineering, Howard University, Washington, DC 20059, USA
Interests: fatigue; fracture mechanics; multiscale modeling and simulations; constitutive modeling & finite element applications; additive manufacturing; high strain rate testing and materials characterization; structural health monitoring
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Metals and alloys are the most widely used materials in mechanical components. However, these components are prone to failures of various forms. Losses due to component failures, annually, are over several millions to billions of dollars. Apart from these economic losses, mechanical component failures are also responsible for causing major safety concerns due to the rapid and often undetectable nature of the final mechanical components’ fracture, especially under fatigue load.

This Special Issue will bring together papers in various aspects of failure behavior in metals and alloys to facilitate exchange of recent advances in the field. We welcome papers relating to all aspects of failure behavior of metals and alloys, including but not limited to the following topics: novel experimental testing and numerical methods to characterize fatigue crack formation and multistage growth, mechanisms and growth of fatigue cracks from defects, new multiaxial fatigue life prediction methodologies, new methods for notch root analysis, size and gradient effects, prediction of scatter in fatigue behavior of materials due to variability in materials microstructures and service conditions, mechanisms of micro and macro fracture in advanced materials, design against fatigue damage and failure, multiscale constitutive modeling to simulate fatigue and fracture evolution, high temperature deformation, and techniques to characterize and predict creep fatigue–oxidation interaction, and other topics relating to failure behavior of metals and alloys.

We also welcome papers in the area of microstructure-sensitive fatigue design that represents a rapidly evolving area in computational solid mechanics, which is central to addressing the influence of microstructures and defects on fatigue life and future needs for more predictive fatigue design of mechanical components for various applications.

Dr. Gbadebo Owolabi
Guest Editor

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

  • deformation
  • fatigue
  • fracture
  • metals
  • alloys
  • mechanical properties
  • microstructure
  • failure

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

18 pages, 5305 KiB  
Article
Evaluation of Fatigue Performance of Press Hardening Steel Joints Welded by GMAW-CSC and PAW Processes
by Elias Hoffmann de Lima, Diego Tolotti de Almeida, Daniel Souza, Kleber Eduardo Bianchi and Hardy Mohrbacher
Metals 2022, 12(12), 2131; https://doi.org/10.3390/met12122131 - 12 Dec 2022
Viewed by 1139
Abstract
The application of press hardening steels is spreading from automobiles, where crashworthiness demands are critical, to other segments, such as the agricultural and road transport industries. However, the operational conditions to which such equipment is exposed requires the application of heavier sheet gages [...] Read more.
The application of press hardening steels is spreading from automobiles, where crashworthiness demands are critical, to other segments, such as the agricultural and road transport industries. However, the operational conditions to which such equipment is exposed requires the application of heavier sheet gages and adapted joining processes. In this context, fatigue is recognized as the critical failure mode. The present article describes the procedures and results of fatigue testing performed on GMAW-CSC and PAW butt-welded specimens of 1500 MPa press hardening steel. Both methods are suitable alternatives to laser welding when joining relatively heavy-gaged components. The obtained fatigue results are also related to heat-affected zone characteristics and weld bead surfaces. Additionally, some ground-flush GMAW-CSC specimens were tested. The test results indicate that both welding procedures provide suitable fatigue performance. As-welded GMAW-CSC joints on this ultra-high strength steel accomplished a fatigue performance similar to welds of conventional steel. However, a remarkable performance increase was observed after flush grinding the weld beads. The plasma welding process presented less good results due to the more extensive manufacturing and geometric variability. The results indicate that adopting a suitable arc welding process, in association with post-weld geometry improvement, provides a fatigue performance that is competitive with laser-welded press hardening steels. Full article
(This article belongs to the Special Issue Failure Behavior in Metals and Alloys)
Show Figures

Figure 1

Back to TopTop