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Applied Sciences
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Microstructural and Mechanical Properties of Metallic Materials, Volume Ⅲ
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Microstructural and Mechanical Properties of Metallic Materials, Volume Ⅲ

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Materials Science and Engineering".

Deadline for manuscript submissions: 30 November 2024 | Viewed by 1809

Special Issue Editor

Dr. Young-Min Kim

E-Mail Website
Guest Editor
Advanced Joining & Additive Manufacturing R&D Department, Korea Institute of Industrial Technology (KITECH), Incheon 21999, Republic of Korea
Interests: alloy design; thermodynamic modeling; welding metallurgy; cladding; high-entropy alloy; resistance spot welding
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Various metallic materials are applied to industrial fields and real life. The mechanical properties or behaviors of the material are often governed by their microstructural characteristics. It is also possible to improve the mechanical properties of the material through microstructural evolution using various methods, such as heat treatment, surface treatment, and plastic deformation. Therefore, analyzing the microstructural properties of metallic materials helps us to understand the mechanisms of mechanical behavior of the material and to optimize the manufacturing process for the material. This Special Issue covers all aspects of the microstructure and the mechanical properties of metallic materials, ranging from conventional ferrous and nonferrous alloys subjected to different processing methods. Studies focusing on the theoretical simulation and experimental analysis of the microstructural and mechanical behaviors of metallic materials are also welcome.

Dr. Young-Min Kim
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. Applied Sciences 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 2400 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

  • metallic materials
  • microstructure
  • microstructure
  • deformation
  • annealing
  • strengthening mechanisms
  • material characterization
  • manufacturing process

Published Papers (2 papers)

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Research

13 pages, 9629 KiB  
Article
Corrosion Behavior of Zn-Al-Mg-Si Coatings in Sulfur Dioxide-Containing Environment
by Henryk Kania and Anżelina Marek
Appl. Sci. 2024, 14(5), 2120; https://doi.org/10.3390/app14052120 - 04 Mar 2024
Viewed by 533
Abstract
Zn-Al-Mg-Si coatings are an excellent alternative to conventional hot-dip galvanizing coatings. Their high corrosion resistance in corrosive environments containing chlorides and CO2 is well recognized. But sulfur dioxide is also an important stimulator of corrosion in the atmospheric environment. This article presents [...] Read more.
Zn-Al-Mg-Si coatings are an excellent alternative to conventional hot-dip galvanizing coatings. Their high corrosion resistance in corrosive environments containing chlorides and CO2 is well recognized. But sulfur dioxide is also an important stimulator of corrosion in the atmospheric environment. This article presents the results of microstructure (SEM/EDS/XRD) and corrosion behavior tests of Zn-Al-Mg-Si coatings obtained by a double hot-dip method on HSLA steel. The corrosion resistance of the coatings was determined in the sulfur dioxide test with general condensation of moisture (EN ISO 6988). In the corrosion test, Zn-Al-Mg-Si coatings showed twofold smaller weight loss compared to conventional hot-dip zinc coatings. It was found that the corrosion behavior of coatings was influenced by the structural components revealed in the outer layer: Al-rich dendritic and interdendritic areas with Zn/MgZn2 eutectic, MgZn2 intermetallic and Si precipitates and their electrochemical nature. The increase in corrosion resistance was caused by the formation of beneficial corrosion products: layered double hydroxides (LDHs) based on divalent Mg2+ and Zn2+ cations, trivalent Al3+ cations and SO42− anions, and zinc hydroxysulfate—Zn4SO4(OH)6∙5H2O. The presence of Si precipitates could cause pitting corrosion of coatings. Full article
(This article belongs to the Special Issue Microstructural and Mechanical Properties of Metallic Materials, Volume Ⅲ)
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15 pages, 9731 KiB  
Article
Effects of Process Parameters on the Bead Shape in the Tandem Gas Metal Arc Welding of Aluminum 5083-O Alloy
by Gwang-Gook Kim, Taehoon Kang, Dong-Yoon Kim, Young-Min Kim, Jiyoung Yu and Junhong Park
Appl. Sci. 2023, 13(11), 6653; https://doi.org/10.3390/app13116653 - 30 May 2023
Cited by 1 | Viewed by 975
Abstract
In gas metal arc welding (GMAW), the weld bead shape is an important factor that is directly related to the weld quality of welded joints. This study investigates the effects of process parameters, including welding speed (WS) and leading and trailing wire feed [...] Read more.
In gas metal arc welding (GMAW), the weld bead shape is an important factor that is directly related to the weld quality of welded joints. This study investigates the effects of process parameters, including welding speed (WS) and leading and trailing wire feed rates (WFR), on the weld bead shape, including the leg length and penetration depth, in the tandem GMAW of aluminum 5083-O alloy. An asynchronous direct current–direct current pulse tandem GMAW system and a tandem GMAW torch were designed and applied to improve welding productivity and welding quality. Response surface methodology was used to analyze the effects of the process parameters on the weld bead shape and to estimate regression models for predicting the weld bead shape. As a result of observing arc behavior using a high-speed camera, it was confirmed that the leading WFR affects the penetration depth and the trailing WFR affects the leg length. The coefficient of determination (R2) of the regression models was 0.9414 for the leg length and 0.9924 for the penetration depth. It was also validated that the estimated models were effective in predicting the weld bead shape (leg length and penetration depth) representative of weld quality in the tandem GMAW process. Full article
(This article belongs to the Special Issue Microstructural and Mechanical Properties of Metallic Materials, Volume Ⅲ)
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