materials-logo

Journal Browser

Journal Browser

Evaluation of Fatigue and Creep-Fatigue Damage of Steel

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Metals and Alloys".

Deadline for manuscript submissions: 20 November 2024 | Viewed by 499

Special Issue Editor

Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, China
Interests: steel; smart manufacturing; advanced energy structure materials; light metal structure-function integrated materials; new nanocrystalline and high-entropy alloys

Special Issue Information

Dear Colleagues,

Fatigue is the gradual process of crack initiation and propagation in materials subjected to repetitive loading, while creep-fatigue combines the creep characteristics of materials with loading at elevated temperatures. Steel is widely used in engineering applications, and thus the evaluation of its fatigue and creep-fatigue properties is crucial. The fatigue and creep-fatigue damage of steel in usage environments is one of the most common failure modes for steels. The purpose of this Special Issue on “Evaluation of Fatigue and Creep-Fatigue Damage of Steel” is to explore the complex relationship between performance, processing, microstructure, and environmental degradation in steels and various environments.

This Special Issue delves into the assessment of fatigue and creep-fatigue damage in steel over prolonged usage periods. Encompassing various aspects, including fundamental principles, testing methodologies, numerical simulations, and practical engineering applications, articles within this Special Issue can focus on the fatigue life of steel under different loads and temperature conditions, as well as theoretical analyses of creep-fatigue damage mechanisms. These evaluations guide the design and utilization of steel in practical engineering, aiming to enhance its performance and durability. Furthermore, modifications to steel materials aimed at enhancing their fatigue and creep resistance are welcomed, alongside an exploration of the potential applications of material design and structural optimization in mitigating fatigue and creep-fatigue damage.

This Special Issue will cover the fatigue and creep-fatigue damage of steel in different environments as well as different industries (transportation, energy, oil and gas, nuclear, etc.) and process history (cast, wrought, and additive manufacturing).

Overall, this Special Issue invites contributions from academia, researchers, industry professionals, and engineers.

Dr. Bin Yang
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. Materials is an international peer-reviewed open access semimonthly 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

  • creep
  • fatigue
  • corrosion fatigue
  • creep-fatigue
  • steels

Published Papers (1 paper)

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

Research

14 pages, 6142 KiB  
Article
Prediction of Residual Life of In-Service P91 Steel Joints Based on Fracture Behavior
by Kai Yan, Yongjiang Cai, Denghui Wang, Shichao Zhang, Shuang Yi, Fulai Yang and Zheng Zhang
Materials 2024, 17(12), 2789; https://doi.org/10.3390/ma17122789 - 7 Jun 2024
Viewed by 339
Abstract
P91 steel and P91 steel joints experience performance degradation after serving for 30,000 h in working conditions. To clarify the damage and failure behavior and remaining life of the joints during subsequent service, further creep testing was conducted on the welded joints of [...] Read more.
P91 steel and P91 steel joints experience performance degradation after serving for 30,000 h in working conditions. To clarify the damage and failure behavior and remaining life of the joints during subsequent service, further creep testing was conducted on the welded joints of P91 steel that had been in service for 30,000 h at three temperatures: 550 °C, 575 °C, and 600 °C. The fracture surface and the cross-section damage behavior were characterized by SEM and EBSD methods. The results show that there are two types of fracture modes in the joints at different temperatures: ductile cracking occurring at the BM, and type IV cracking occurring in the FGHAZ. The threshold stress for fracture mode transition decreases with an increase in working temperature. Type IV cracking near the HAZ is the main reason for the premature failure of joints during service. And based on the fracture mode, the dual-constant L-M method was proposed to predict the strength of in-service joint materials. The testing data are discussed and classified based on the fracture mode in this method, which has high accuracy and can prevent the premature failure of joints. Full article
(This article belongs to the Special Issue Evaluation of Fatigue and Creep-Fatigue Damage of Steel)
Show Figures

Figure 1

Back to TopTop