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Development and Construction of High-Performance and High-Quality Metal Materials for Abnormal Environmental Service

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Metals and Alloys".

Deadline for manuscript submissions: closed (20 June 2024) | Viewed by 2721

Special Issue Editors


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Guest Editor
School of Materials Science and Engineering, Central South University, Changsha, China
Interests: high-strength steel; Ti alloy; Mg alloy; biomaterial; antibacterial metal; biodegradation; biocompatibility
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Guest Editor
School of Mechanical Engineering, University of South China, Hengyang, China.
Interests: pure iron; iron-based biomaterial; biodegradation; biocompatibility; antibacterial function; bio-preparation

Special Issue Information

Dear Colleagues,

Abnormal environments refer to high-temperature, low-temperature, high-pressure, irradiated, physiological, acidic, alkaline, high-salt and other corrosive environments. Metal materials have unique metal properties and are widely used at present. Due to the excellent mechanical strength, electrical conductivity, thermal/chemical stability and structural designability of metal materials, their potential applications in abnormal environments are being extensively investigated. Through the specific structural design of metal materials, they can meet their application requirements in specific abnormal environments. There is an urgent need for the development of high-performance and high-quality metal materials for abnormal environmental service.

In this Special Issue, we will address the problem of the preparation, characterization, and operational service or practical applications of high-performance and high-quality metal materials for abnormal environmental service, including alloy design, preparation, synthesis, characterization, processing, performance, service applications of metal materials. Papers may explore a range of aspects of metal materials including (i) laboratory preparation, self-assembly behavior and their applications; (ii) different service applications; and (iii) new mechanisms, intriguing properties, and promising applications in abnormal environments. Our goal is to identify approaches to improve the performance of metal materials and facilitate their applications in this topic. By exploring the particularities of metal material applications in abnormal environments, the limitations and constraints of metal materials in responding to abnormal environmental challenges can be solved, the influence of various environmental factors on the performance of metal materials can be clarified, and performance changes in various environments can be elucidated.

We welcome contributions in the form of original research or review articles in development and the construction of high-performance and high-quality metal materials for abnormal environmental service. Areas of interest include, but are not limited to, the following:

  • Alloy design;
  • Microstructural characteristic and microstructure modification;
  • Preparing and processing technologies;
  • Performances;
  • Service applications.

Prof. Dr. Mingchun Zhao
Dr. Ying-Chao Zhao
Guest Editors

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Keywords

  • metal
  • microstructure
  • mechanical strength
  • electrical conductivity
  • thermal/chemical stability
  • corrosive environments
  • high temperature
  • low temperature
  • high pressure
  • radiation
  • physiological environment
  • acidic
  • alkaline
  • high salt
  • preparing and processing
  • performances
  • service applications

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Published Papers (2 papers)

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Research

12 pages, 5281 KiB  
Article
Surface Performance of Nano-CrN/TiN Multi-Layered Coating on the Surface of Ti Alloy
by Jun Feng, Zhiyong Shi, Yingchao Zhao, Jun Wang, Xudong Yang and Mingchun Zhao
Materials 2023, 16(24), 7707; https://doi.org/10.3390/ma16247707 - 18 Dec 2023
Cited by 2 | Viewed by 1115
Abstract
Surface coating has been widely used to ameliorate the surface properties of Ti alloys. In this study, high-power pulsed magnetically controlled sputtering technology was used to successfully prepare a nano-CrN/TiN multi-layered coating on the surface of a TC4 Ti alloy. The surface of [...] Read more.
Surface coating has been widely used to ameliorate the surface properties of Ti alloys. In this study, high-power pulsed magnetically controlled sputtering technology was used to successfully prepare a nano-CrN/TiN multi-layered coating on the surface of a TC4 Ti alloy. The surface of the obtained coating was uniform, dense, and free of obvious defects. With the decrease in modulation period, the optimal growth of the nano-CrN/TiN multi-layered coating was changed from a (220) crystal surface to (111) and a (200) crystal surface. Compared to the single-layered CrN or TiN coating, the nano-multi-layered coating had higher hardness and lower wear rate. Furthermore, the hardness and the wear resistance increased with the decrease in the modulation period. This presented an optimal modulation period of 6 nm. Meanwhile, the resistance of the obtained coating to high-temperature oxidation at 800 °C was also significantly improved. Full article
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13 pages, 10334 KiB  
Article
Microstructure Evolution and In Situ Resistivity Response of 2196 Al-Li Alloy during Aging Process
by Xiang Li, Hongying Li, Haoqing Tang, Xiang Xiao, Jiaqiang Han and Ziqiao Zheng
Materials 2023, 16(23), 7492; https://doi.org/10.3390/ma16237492 - 3 Dec 2023
Cited by 2 | Viewed by 1285
Abstract
The microstructure evolution of 2196 Al-Li alloy during aging was investigated by microhardness test, transmission electron microscope (TEM) analysis and in situ resistivity measurement. The results showed that the resistivity of the 2196 Al-Li alloy during aging rapidly decreased during the first few [...] Read more.
The microstructure evolution of 2196 Al-Li alloy during aging was investigated by microhardness test, transmission electron microscope (TEM) analysis and in situ resistivity measurement. The results showed that the resistivity of the 2196 Al-Li alloy during aging rapidly decreased during the first few hours, and then gradually increased after reaching the minimum value, which is temperature−dependent. The microstructure of the alloy was dominated by the δ′ phase after aging at 160 °C for 2 h while the T1 phase could hardly be seen until it had been aged for 16 h. As the aging time went on, significant ripening appeared for the δ′ phase while typical growth could be observed for the T1 phase. The increase in the resistivity of the 2196 Al-Li alloy during aging was attributed to the stronger electron scattering capacity of the T1 precipitation and the coupling effect between the T1 and δ′ phases. Full article
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