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Coatings
Special Issues
Fatigue and Fracture of Structural Materials
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Fatigue and Fracture of Structural Materials

A special issue of Coatings (ISSN 2079-6412).

Deadline for manuscript submissions: closed (20 October 2022) | Viewed by 3264

Special Issue Editor

Dr. Dongyang Zhang

E-Mail Website
Guest Editor
Institute of Critical Materials for Integrated Circuits, Shenzhen Polytechnic, Shenzhen 518055, China
Interests: high-temperature ablative and oxidative coating; ultra-high temperature ceramics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The fatigue and fracture of structural materials is an important aspect to the analysis of the failure behaviors of materials, which could serve as a vital index to guide material design. Accordingly, we are launching this new Special Issue of Coatings that will collect original research articles and review papers. Contributions will focus on the fundamentals and application of the fatigue and fracture of structural materials and will emphasize the potential of the covered subject in addressing these important societal challenges.

We look forward to receiving your contribution.

Dr. Dongyang Zhang
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. Coatings 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 mode
  • fracture mechanism
  • mechanical properties
  • crack initiation
  • crack propagation
  • crack bifurcation

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Published Papers (1 paper)

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Research

12 pages, 8477 KiB  
Article
Fatigue Property and Residual Stress Relaxation Behavior of High-Energy Shot Peened Pure Zr
by Guizhi Xiao, Xin Zhang, Conghui Zhang, Ying Liu and Wenguang Zhu
Coatings 2022, 12(2), 131; https://doi.org/10.3390/coatings12020131 - 24 Jan 2022
Cited by 4 | Viewed by 2768
Abstract
High-energy shot peening (HESP) was conducted on commercial pure Zr to generate a surface gradient nanostructured layer and compressive residual stress (CRS). The microstructure, residual stress, and fracture morphology were investigated by electron back scattering diffraction (EBSD), scanning electron microscope (SEM), transmission electron [...] Read more.
High-energy shot peening (HESP) was conducted on commercial pure Zr to generate a surface gradient nanostructured layer and compressive residual stress (CRS). The microstructure, residual stress, and fracture morphology were investigated by electron back scattering diffraction (EBSD), scanning electron microscope (SEM), transmission electron microscope (TEM), and X-ray diffraction (XRD), respectively. Tensile fatigue tests were conducted and the fatigue property was presented through S-N curve. By the XRD measurement, the residual stress relaxation and the microstructure evolution on the HESPed surface were studied under different stress amplitudes. The results indicated that the fatigue limit of the HESPed sample was 23% higher than that of the as-received. The relaxation of residual stress was observed during fatigue loading; the initial relaxation rate was fast and the later was slow, accompanied by a similar degree of nanocrystalline coarsening and dislocation density reduction. A linear relationship between the surface residual stress and the number of cycles for the HESPed sample was quantitatively described. The higher the applied stress amplitude was, the faster the residual stress relaxation (RSR) was. The stress amplitude had an important influence on the relaxation rate, the degree of nanocrystals coarsening, and dislocation density. Local plastic deformation caused grain coarsening and dislocation density reduction. Full article
(This article belongs to the Special Issue Fatigue and Fracture of Structural Materials)
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