Gradient Nanocrystalline Surfaces Produced by Mechanical Surface Engineering, Machining and Wear

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Corrosion, Wear and Erosion".

Deadline for manuscript submissions: closed (23 July 2023) | Viewed by 3003

Special Issue Editors

Materials and Engineering Research Institute, Sheffield Hallam University, Sheffield S1 1WB, UK
Interests: wear resistance; tribology in metal machining; worn surface characterisation by electron microscopy, spectroscopy and diffraction; tribological coatings and surfaces; wear resistant steels
Special Issues, Collections and Topics in MDPI journals
School of materials Science and Engineering, Henan University of Science and Technology, 263 Kaiyuan Road, Luo-Long District, Luoyang, Henan Province, China
Interests: wear, friction, and lubrication; surface engineering technology; electron microscopy and spectroscopy; research, development, and manufacturing of steel bearings
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The scope of this Special Issue aims to address the recent research of nano-structured surfaces generated either in mechanical surface strengthening, such as shot peening, rolling, or other types; in machining; or in a wear process. These processes are known to result in various severities of plastic deformation, work hardening, and residual stresses. Recent research is more focused on the nano-/atomic-scale characterization of such near-surface structures in order to either further enhance the mechanical properties, or to address the fundamentals of microstructure evolution. We welcome research papers, case studies, and topic reviews on various types of mechanically induced nano-scale surface structures, regarding the structural characterization, mechanical properties, and tribological performance, as well as the related failure investigation. There is special interest in the characterization of such surfaces by means of electron microscopy, nano-/micro-indentation, and X-ray diffraction analyses. We also welcome contributions on advances in analytical and testing techniques.

Topics of interest include, but are not limited to, the following:

  • Mechanically-strengthened surfaces of structural metallic alloys;
  • Electron microscopy (TEM or SEM) of ingredient nano-structures produced in surface strengthening, in machining, and in wear;
  • Surface and cross-sectional nano-/micro-indentation of ingradient nano-structures produced in surface strengthening, in machining, and in wear;
  • Fatigue properties, wear resistance, and other related mechanical properties of materials having mechanically strengthened surfaces;
  • Machining-induced severe surface deformation and its impact on mechnaical properties;
  • Residual stress measurement of mechanically engineering surfaces;
  • Experimental and modelling studies on the structural evolution mechnaisms of nano-structured surfaces;
  • Industrial performance of nano-structured surfaces and the related failure mechanisms.

Dr. Quanshun Luo
Prof. Dr. Sanming Du
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. 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.

Published Papers (1 paper)

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Research

16 pages, 15986 KiB  
Article
A Simulation Study on the Crack Propagation Behavior of Nanostructured Thermal Barrier Coatings with Tailored Microstructure
by Lei Zhang, Yu Wang, Wei Fan, Yuan Gao, Yiwen Sun and Yu Bai
Coatings 2020, 10(8), 722; https://doi.org/10.3390/coatings10080722 - 23 Jul 2020
Cited by 8 | Viewed by 2506
Abstract
The initiation and propagation of cracks are crucial to the reliability and stability of thermal barrier coatings (TBCs). It is important and necessary to develop an effective method for the prediction of the crack propagation behavior of TBCs. In this study, an extended [...] Read more.
The initiation and propagation of cracks are crucial to the reliability and stability of thermal barrier coatings (TBCs). It is important and necessary to develop an effective method for the prediction of the crack propagation behavior of TBCs. In this study, an extended finite element model (XFEM) based on the real microstructure of nanostructured TBCs was built and employed to elucidate the correlation between the microstructure and crack propagation behavior. Results showed that the unmelted nano-particles (UNPs) that were distributed in the nanostructured coating had an obvious “capture effect” on the cracks, which means that many cracks easily accumulated in the tensile stress zone of the adjacent UNPs and a complex microcrack network formed at their periphery. Arbitrarily oriented cracks mainly propagated parallel to the x-axis at the final stage of thermal cycles and the tensile stress was the main driving force for the spallation failure of TBCs. Correspondingly, I and I–II mixed types of cracks are the major cracking patterns. Full article
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