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Coatings
Special Issues
Microstructure, Mechanical and Tribological Properties of Alloys
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Special Issue "Microstructure, Mechanical and Tribological Properties of Alloys"

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

Deadline for manuscript submissions: 30 April 2024 | Viewed by 557

Special Issue Editors

Dr. Shuiqing Liu
E-Mail Website
Guest Editor
School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, China
Interests: material/structure reliability and failure mechanism; mechanical and tribological behavior of composites; micro and nano manufacturing robots
Dr. Ru Su
E-Mail Website
Guest Editor
School of Materials Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, China
Interests: deformation and damage of nickel-based superalloy and aluminum alloy materials; measurement and control of residual stress in metallic materials

Special Issue Information

Dear Colleagues,

The microstructure of a material is the key to its mechanical and wear properties. The goal of this Special Issue on Microstructure, Mechanical and Tribological Properties of Alloys is to bring together information on the latest advances, new technologies and comprehensive mechanism analysis of microstructure characterization and alloys, seeking to provide guidance and reference for further research in related fields.

Topics exploring the use of zirconium for nuclear power, composites, intermetallic compounds and functional materials will be included. Additionally, topics related to the design of advanced metals and alloys, additive/subtractive manufacturing, surface modification, material simulation and calculation, finite element modeling, machine learning, simulation and experiments of mechanical properties characterization are also included. Full papers, short communication and reviews are welcome.

We look forward to receiving your contributions!

Dr. Shuiqing Liu
Dr. Ru Su
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.

Keywords

  • zirconium for nuclear power
  • advanced alloys
  • additive manufacturing
  • microstructure characterization and analysis
  • strengthening and toughening mechanism
  • wear mechanism
  • solidification and casting
  • surface treatment and heat treatment
  • machine learning

Published Papers (1 paper)

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Research

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Article
The Effect of Electroplating Nickel on the Mechanical Properties of Brittle Mg-Based Bulk Metallic Glasses
by
Jingyao Zhang
,
Jing Li
,
Mei Jing
,
Lichen Zhao
,
Yumin Qi
,
Wei Yang
and
Xin Wang
Coatings 2023, 13(9), 1598; https://doi.org/10.3390/coatings13091598 - 13 Sep 2023
Viewed by 260
Abstract
Magnesium-based bulk metallic glasses (BMGs) are typical intrinsic brittle lightweight BMG alloys, and their improvement in plasticity has attracted widespread attention in the field of BMGs. We used the electroplating method to modify the surface of Mg59.5Cu22.9Ag11Gd [...] Read more.
Magnesium-based bulk metallic glasses (BMGs) are typical intrinsic brittle lightweight BMG alloys, and their improvement in plasticity has attracted widespread attention in the field of BMGs. We used the electroplating method to modify the surface of Mg59.5Cu22.9Ag11Gd6.6 BMGs and investigated the geometric confinement effect of the Ni coating on the mechanical properties of the BMG. The results show that under the plating conditions of adding 1 g/L nano Al2O3 to the plating solution, adjusting the plating temperature to 50 °C, and plating time to 3 h, a smooth and dense nickel coating with a thickness of about 150 μm can be formed on the surface of the Mg-based BMG. The uniaxial compression tests showed that the average fracture strength of the BMG was increased from 565 MPa to 598 MPa by a 50 μm Ni coating, and the fluctuation range of strength was decreased from 429 MPa to 265 MPa, a reduction of 36%. The Weibull analysis showed that the Weibull modulus m was increased from 4.3 to 4.8 by the coating, and the safety stress was increased from 54 MPa to 235 MPa, indicating that electroplating nickel could improve the reliability of the Mg-based BMG alloy. However, no significant improvement of the compression plasticity was found, which indicated that improving the room temperature plasticity of brittle Mg-based BMG alloys by the geometric confinement of electroplating Ni was limited. The influence of the thickness of the Ni coating on the maximum stress level and stress distribution in the BMG samples was analyzed by ANSYS finite element simulation. It was found that when the thickness of the coating was 30% of the radius of the cylindrical compressed sample, the stress distribution caused by the Ni coating was the most uniform, and the maximum stress level was relatively reduced, which is beneficial for improving the geometric confinement effect. As a result, the Mg-based BMG sample coated with a Ni coating of 150 μm thickness exhibited ~0.3% macroscopic compressive plasticity. This is of great significance for understanding the plastic deformation mechanism of brittle BMGs improved by geometric confinement. Full article
(This article belongs to the Special Issue Microstructure, Mechanical and Tribological Properties of Alloys)
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