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Porous Metals: Preparation, Microstructure, Properties and Performance
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Porous Metals: Preparation, Microstructure, Properties and Performance

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

Deadline for manuscript submissions: 20 May 2024 | Viewed by 1317

Special Issue Editors

Prof. Dr. Yuyuan Zhao

E-Mail Website
Guest Editor
1. Mechanical and Automotive Engineering, Ningbo University of Technology, Ningbo, China
2. School of Engineering, University of Liverpool, Liverpool L69 3GH, UK
Interests: porous metals; metal matrix syntactic foams; metal powders; thermos-fluids in porous media
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Huiping Tang

E-Mail Website
Guest Editor
Advanced Materials Additive Manufacturing Innovation Research Center, Hangzhou City University, Hangzhou, China
Interests: porous metals; powder metallurgy; additive manufacturing

Special Issue Information

Dear Colleagues,

Porous metals (also known as metal foams and cellular metals) are a special class of composite materials, composed of a metal phase and a gaseous phase. The functionality of porous metals derives from the combinations of these two distinct materials, and, in essence, their specific porous structures. Porous metals are produced by a variety of techniques, including foaming, casting, and powder metallurgy. Recent advances in additive manufacturing have added impetus to the field. Porous metals are finding new applications in many sectors, such as aerospace, automotive, construction, and energy, for their unique properties. This Special Issue of Materials intends to cover a wide range of porous metal structures manufactured using different technologies. A special emphasis will be placed on new fabrication methods, novel structures, new properties, and new applications of porous metals.

Prof. Dr. Yuyuan Zhao
Prof. Dr. Huiping Tang
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. Materials 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 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

  • porous metals
  • metal foams
  • cellular metals
  • porous structure
  • fabrication methods
  • properties
  • applications

Published Papers (2 papers)

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Research

14 pages, 17734 KiB  
Article
Energy Absorption Characteristics of Composite Material with Fiber–Foam Metal Sandwich Structure Subjected to Gas Explosion
by Baoyong Zhang, Jin Tao, Jiarui Cui, Yiyu Zhang, Yajun Wang, Yingxin Zhang, Yonghui Han and Man Sun
Materials 2024, 17(7), 1596; https://doi.org/10.3390/ma17071596 - 31 Mar 2024
Viewed by 567
Abstract
Based on the previous research on the energy absorption of foam metal materials with different structures, a composite blast-resistant energy-absorbing material with a flexible core layer was designed. The material is composed of three different fiber materials (carbon fiber, aramid fiber, and glass [...] Read more.
Based on the previous research on the energy absorption of foam metal materials with different structures, a composite blast-resistant energy-absorbing material with a flexible core layer was designed. The material is composed of three different fiber materials (carbon fiber, aramid fiber, and glass fiber) as the core layer and foamed iron–nickel metal as the front and rear panels. The energy absorption characteristics were tested using a self-built gas explosion tube network experimental platform, and the energy absorption effects of different combinations of blast-resistant materials were analyzed. The purpose of this paper is to evaluate the performance of blast-resistant materials designed with flexible fiber core layers. The experimental results show that the composite structure blast-resistant material with a flexible core layer has higher energy absorption performance. The work performed in this paper shows that the use of flexible core layer materials has great research potential and engineering research value for improving energy absorption performance, reducing the mass of blast-resistant materials, and reducing production costs. It also provides thoughts for the research of biomimetic energy-absorbing materials. Full article
(This article belongs to the Special Issue Porous Metals: Preparation, Microstructure, Properties and Performance)
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12 pages, 4102 KiB  
Article
Homogeneous Age-hardening of Large-sized Al-Sc Foams via Micro-alloying with Zr and Ti
by Xuming Chu, Tianze Wang, Donghui Yang, Xiangyang Peng, Shuo Hou, Shuai Chen, Guangyao Lu, Meiyuan Jiao, Yuan Wu, Andrey A. Rempel, Wentao Qu, Hongxiang Li and Hui Wang
Materials 2024, 17(6), 1269; https://doi.org/10.3390/ma17061269 - 09 Mar 2024
Viewed by 541
Abstract
Al-based foams have drawn increasing attention from industry due to their integration of structure and functional properties. However, large-sized Al-based foams still cannot be homogeneously strengthened by long-time aging due to their low thermal conductivity. In this study, we proposed an age-hardening approach [...] Read more.
Al-based foams have drawn increasing attention from industry due to their integration of structure and functional properties. However, large-sized Al-based foams still cannot be homogeneously strengthened by long-time aging due to their low thermal conductivity. In this study, we proposed an age-hardening approach that was applied in large-sized Al-0.16Sc-0.17Zr (wt.%) foams via micro-alloying with Zr and Ti compared with Al-0.21Sc foams; it not only achieved homogeneous strength by long-term aging but also reduced the cost of the alloy by substituting Zr and Ti for the more expensive Sc content. The results show that the Al3(Sc, Zr, Ti) phase with a core–shell structure as a crucial precipitation strengthening phase by micro-alloying with Zr and Ti was less prone to coarsening after a prolonged aging heat treatment. Therefore, the yielding strength of Al-Sc foam micro-alloying with Zr and Ti remained almost unchanged after a maximum aging time of 1440 h due to less coarsening precipitate, which is consistent with the results of mechanical experiments. These findings provide a new way for the heat treatment strengthening of large-sized Al-based foams, thus promoting their industrial applications. Full article
(This article belongs to the Special Issue Porous Metals: Preparation, Microstructure, Properties and Performance)
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