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Metals
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Research on Corrosion and Protection Technology of Metal Matrix Composite
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Research on Corrosion and Protection Technology of Metal Matrix Composite

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

Deadline for manuscript submissions: closed (30 September 2022) | Viewed by 4213

Special Issue Editor

Dr. Wei Zhao

E-Mail Website
Guest Editor
School of Mechanical Engineering, Qilu University of Technology, Jinan 250353, China
Interests: corrosion; welding; surface modification

Special Issue Information

Dear Colleagues,

The corrosion of metal matrix composites is one of the most important failure modes. Thus, it has been paid much attention, including pitting corrosion, galvanic corrosion, stress corrosion, etc. The corrosion environments include acid gas (like H2S and CO2), anion (like Cl- and SO42-), organic (like plastic and rubber) and microorganisms.

The corrosion mechanisms of metal matrix composite, including the corrosion style and corrosion process, should be studied deeply.

In addition, some protection technologies have been come up, such as cathodic protection, coating films, cladding, passive films, and corrosion inhibitors. The protection effect should be studied deeply.

In this Special Issue, we welcome articles that focus on any corrosion and protection technology of metal matrix composite.

Dr. Wei Zhao
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. 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
  • corrosion protection
  • metal matrix composite
  • surface modification
  • cladding
  • coating

Published Papers (3 papers)

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Research

19 pages, 9049 KiB  
Article
Effect of Heat Input on Microstructure and Corrosion Resistance of X80 Laser Welded Joints
by Wei Zhao, Jia Wang, Zhen Li, Ning Guo and Song Gao
Metals 2022, 12(10), 1654; https://doi.org/10.3390/met12101654 - 30 Sep 2022
Viewed by 1280
Abstract
Using fiber laser welding technology, X80 pipeline steel welded joints with different welding heat inputs were obtained. Their microstructure, mechanical properties, and corrosion resistance (in NACEA solution saturated with hydrogen sulfide) were studied. Findings indicated that with the increase in heat input, the [...] Read more.
Using fiber laser welding technology, X80 pipeline steel welded joints with different welding heat inputs were obtained. Their microstructure, mechanical properties, and corrosion resistance (in NACEA solution saturated with hydrogen sulfide) were studied. Findings indicated that with the increase in heat input, the proportion of ferrite, strength, elongation, and corrosion resistance increased within a certain range and the sum of the proportion of martensite and bainite and hardness decreased. The heat input has a greater effect on the microstructure of weld metal (WM) and coarse-grained heat-affected zone (CGHAZ), while that of fine-grained heat-affected zone (FGHAZ) is basically unchanged. Obvious differences are also found in the corrosion resistance of different regions of the welded joints, among which FGHAZ has the strongest corrosion resistance, followed by WM and CGHAZ. The heat input mainly affects the microstructure type of the welded joint to affect the corrosion resistance. Therefore, we model the heat input as a function of Rct and icorr from this relationship. In addition, the corrosion products film produced by the long-term immersion of the welded joint in the saturated H2S NACEA solution can hinder the development of corrosion and enhance the corrosion resistance to a certain extent. Full article
(This article belongs to the Special Issue Research on Corrosion and Protection Technology of Metal Matrix Composite)
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13 pages, 9646 KiB  
Article
Effect of Heat Input on Microstructure and Corrosion Resistance of CP-Ti Laser Beam Welded Joints
by Zhen Li, Wei Zhao, Kedong Yu, Ning Guo and Song Gao
Metals 2022, 12(10), 1570; https://doi.org/10.3390/met12101570 - 21 Sep 2022
Cited by 5 | Viewed by 1308
Abstract
The TA1 welded joints with different heat inputs were obtained by a fiber laser and their microstructure, mechanical properties and corrosion resistance in simulated saliva solution were studied. The results show that the microstructure in fusion zone (FZ) is needle-like α′ martensite and [...] Read more.
The TA1 welded joints with different heat inputs were obtained by a fiber laser and their microstructure, mechanical properties and corrosion resistance in simulated saliva solution were studied. The results show that the microstructure in fusion zone (FZ) is needle-like α′ martensite and lath-shape α′ martensite, and that of the heat-affected zone (HAZ) is zigzag α phase. With the increase of heat input, the volume fraction of needle-like α′ martensite decrease and the microstructure is coarsened in FZ, but there is almost no change in the microstructure of the HAZ. The order of the corrosion resistance of welded joints with different heat inputs is the same as FZ > HAZ > base material (BM), and the heat input has a more influence on the corrosion resistance of FZ. The binary multiple linear regression relationship between the corrosion current density/charge transfer resistance and the length/width of α′ martensite was established, indicating that the width of α′ martensite is the main factor affecting the corrosion resistance. Full article
(This article belongs to the Special Issue Research on Corrosion and Protection Technology of Metal Matrix Composite)
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20 pages, 11316 KiB  
Article
Study on Corrosion Resistance and Hydrogen Permeation Behavior in Inter-Critically Reheated Coarse-Grained Heat-Affected Zone of X80 Pipeline Steel
by Kai Chen, Wei Zhao, Guangchun Xiao, Ning Guo and Hui Zhang
Metals 2022, 12(7), 1203; https://doi.org/10.3390/met12071203 - 15 Jul 2022
Cited by 3 | Viewed by 1309
Abstract
We studied the effects of peak temperature and cooling rate in the secondary welding thermal cycles on the martensite/austenite (M/A) constituents’ characteristics (including fraction, average size and distribution), corrosion resistance and hydrogen permeation behaviors in the inter-critically reheated coarse-grained heat-affected zone (ICCGHAZ) of [...] Read more.
We studied the effects of peak temperature and cooling rate in the secondary welding thermal cycles on the martensite/austenite (M/A) constituents’ characteristics (including fraction, average size and distribution), corrosion resistance and hydrogen permeation behaviors in the inter-critically reheated coarse-grained heat-affected zone (ICCGHAZ) of X80 pipeline steel. We observed that the M/A constituents’ characteristics mainly depend on the secondary peak temperature and cooling rates, while the microstructure style and prior austenite grain size are dependent on the first peak temperature. In addition, the variations in the M/A constituents’ characteristics result in different corrosion resistance and hydrogen permeation behaviors by changing the micro-galvanic effect and the number of hydrogen trapping sites. The high fraction and coarse grain size of M/A constituents are against the corrosion resistance and hydrogen permeation in ICCGHAZs, and their functional relationships are established. Moreover, the effects of the fraction of M/A constituents on the corrosion resistance and hydrogen permeation behaviors are much greater than those of the average size. Full article
(This article belongs to the Special Issue Research on Corrosion and Protection Technology of Metal Matrix Composite)
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