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Metals
Special Issues
Corrosion Protection for Metallic Materials
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Corrosion Protection for Metallic Materials

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Corrosion and Protection".

Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 1995

Special Issue Editors

Dr. Chao Chen

E-Mail Website
Guest Editor
College of Mechanical and Electrical Engineering, Northeast Forestry University, Harbin 150040, China
Interests: fusion welding; metal additive manufacturing; laser cladding; improvement microstructure; corrosion performance
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Xiaohui Zhao

E-Mail Website
Guest Editor
School of Materials Science and Engineering, Jilin University, Changchun, China
Interests: welded joints; fatigue strength; welds
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Metallic materials are widely used in the petrochemical industry, automobile manufacturing, rail transit, aerospace and other fields. The corrosion resistance of metallic materials directly affects the service safety and service life of related structures and practices involving many metal structures such as welded components, additive parts, forging and pressing. Therefore, the corrosion protection of metallic materials is always a hot topic, and an area that requires further study.

We invite researchers in relevant fields to submit both research papers and review articles. Potentil topics include:

  1. Processing of corrosion-resistant metallic materials, such as stainless steel/corrosion resistant aluminum alloy welding/additive manufacturing, and so on.
  2. Improvement of corrosion performance of metallic materials in all processing steps in the final analysis of microstructure and properties, such as corrosion resistant coating, laser surface process, and so on.

……

We encourage the publication of both research papers and review articles.

Dr. Chao Chen
Prof. Dr. Xiaohui Zhao
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. 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

  • corrosion protection
  • metals
  • stainless steel
  • coating
  • aluminum alloy
  • welding
  • additive manufacturing

Published Papers (2 papers)

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Research

16 pages, 4919 KiB  
Article
Detection and Imaging of Corrosion Defects in Steel Structures Based on Ultrasonic Digital Image Processing
by Dazhao Chi, Zhixian Xu and Haichun Liu
Metals 2024, 14(4), 390; https://doi.org/10.3390/met14040390 - 26 Mar 2024
Viewed by 498
Abstract
Corrosion is one of the critical factors leading to the failure of steel structures. Ultrasonic C-scans are widely used to identify corrosion damage. Limited by the range of C-scans, multiple C-scans are usually required to cover the whole component. Thus, stitching multiple C-scans [...] Read more.
Corrosion is one of the critical factors leading to the failure of steel structures. Ultrasonic C-scans are widely used to identify corrosion damage. Limited by the range of C-scans, multiple C-scans are usually required to cover the whole component. Thus, stitching multiple C-scans into a panoramic image of the area under detection is necessary for interpreting non-destructive testing (NDT) data. In this paper, an image mosaic method for ultrasonic C-scan based on scale invariant feature transform (SIFT) is proposed. Firstly, to improve the success rate of registration, the difference in the probe starting position in two scans is used to filter the matching pairs of feature points obtained by SIFT. Secondly, dynamic programming methods are used to search for the optimal seam path. Finally, the pixels in the overlapping area are fused by fade-in and fade-out fusion along the seam line. The improved method has a higher success rate of registration and lower image distortion than the conventional method in the mosaic of ultrasonic C-scan images. Experimental results show that the proposed method can stitch multiple C-scan images of a testing block containing artificial defects into a panorama image effectively. Full article
(This article belongs to the Special Issue Corrosion Protection for Metallic Materials)
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11 pages, 14820 KiB  
Article
Research on the Formation, Microstructure, and Properties of 304 Stainless Steel AC-DC Hybrid TIG Welding
by Ying Ye, Bairu Yang, Yonghui Yang, Zihan Pan, Chao Chen and Xinlong Zhang
Metals 2023, 13(6), 1127; https://doi.org/10.3390/met13061127 - 16 Jun 2023
Cited by 1 | Viewed by 1075
Abstract
In this work, a new welding method, AC-DC hybrid TIG welding, is used to weld 304 stainless steel. Research on the formation, microstructure, and properties of 304 stainless-steel welded joints are studied by using optical microscope and microhardness. The results show that the [...] Read more.
In this work, a new welding method, AC-DC hybrid TIG welding, is used to weld 304 stainless steel. Research on the formation, microstructure, and properties of 304 stainless-steel welded joints are studied by using optical microscope and microhardness. The results show that the weld with AC/DC hybrid welding is a fish-scale pattern, and the density of the fish-scale pattern increases with the increase of AC proportion. Both the weld penetration and the ratio of weld penetration to weld width are the highest when AC accounts for 30%. At this point, the weld penetration is 0.83 mm larger than DC mode, an increase of 93.26%, and the ratio of weld penetration to weld width is 1.6, which is 76.19% higher than DC mode. When the proportion of AC is increased, the microstructure of the weld is equiaxed or columnar, and the microstructure of the heat-affected zone is ferrite in the form of lath. The hardness of the weld is greater than that of the base metal, and the hardness of the heat-affected zone is the lowest. The microhardness distribution of the weld with AC 50% is the most uniform. When AC accounts for 20% and 30%, the average weld hardness is the highest, which are 196.7 HV and 198.1 HV, respectively. Full article
(This article belongs to the Special Issue Corrosion Protection for Metallic Materials)
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