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Metals
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Preparation of High-Performance Non-ferrous Metals and Composites
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Preparation of High-Performance Non-ferrous Metals and Composites

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Metal Matrix Composites".

Deadline for manuscript submissions: closed (30 December 2022) | Viewed by 9741

Special Issue Editors

Dr. Lingjie Zhang

E-Mail Website
Guest Editor
Department of Materials Science and Engineering, Zhejiang University, Hangzhou, China
Interests: silver-based materials; high-entropy materials; graphene reinforced composites
Prof. Dr. Ping Hu

E-Mail Website
Guest Editor
School of Metallurgy Engineering, Xi'an University of Architecture and Technology, Xi'an, China
Interests: refractory molybdenum alloy; metal base composite materials; nano powder

Special Issue Information

Dear Colleagues,

Non-ferrous metals have been widely used in aerospace engineering, military and electronic industries due to their excellent properties. However, due to its high ductile brittle transition temperature, low recrystallization temperature and other problems, it leads to typical changes in fracture behavior and limits its manufacture and application as a structural material. The scope of this Special Issue includes advances in the preparation of high-performance non-ferrous metals and composites, which include processing techniques and microstructural characterizations of mechanical behavior, as well as the preparation of powder metallurgy and the synthesis of functional nanomaterials.

In this Special Issue, we welcome the submission of articles that focus on the preparation and processing of non-ferrous materials and their alloys, non-ferrous metal matrix composites and non-ferrous metal nano functional materials. In particular, the optimization of the microstructure evolution of the final material and the simulation of the forming process require attention, as well as new requirements for the high-performance products in the powder metallurgy field.

Prof. Dr. Lingjie Zhang
Prof. Dr. Ping Hu
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

  • non-ferrous metals and their alloys
  • non-ferrous metal matrix composites
  • non-ferrous metal nano-functional materials
  • powder processing
  • powder metallurgical
  • microstructure evolution
  • forming
  • simulation

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Published Papers (4 papers)

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Research

19 pages, 4733 KiB  
Article
An Overview of Synthesis and Structural Regulation of Magnetic Nanomaterials Prepared by Chemical Coprecipitation
by Zelin Li, Yuanjun Sun, Songwei Ge, Fei Zhu, Fei Yin, Lina Gu, Fan Yang, Ping Hu, Guoju Chen, Kuaishe Wang and Alex A. Volinsky
Metals 2023, 13(1), 152; https://doi.org/10.3390/met13010152 - 11 Jan 2023
Cited by 8 | Viewed by 3718
Abstract
Magnetic nanomaterials are widely used in biosynthesis, catalysis, as electronic and microwave-absorbing materials, and in environmental treatment because of their high specific surface area, strong magnetism, chemical stability, and good biocompatibility. The chemical coprecipitation method is widely used for the preparation of magnetic [...] Read more.
Magnetic nanomaterials are widely used in biosynthesis, catalysis, as electronic and microwave-absorbing materials, and in environmental treatment because of their high specific surface area, strong magnetism, chemical stability, and good biocompatibility. The chemical coprecipitation method is widely used for the preparation of magnetic nanomaterials due to its simplicity, low cost, and easily-controlled operating conditions. The magnetic nanomaterials prepared by the chemical coprecipitation method are summarized according to the different compositions, including the basic preparation principles, and the factors affecting their morphology, size, and microstructure. The mechanisms of preparing magnetic nanomaterials by chemical precipitation and the process control factors are emphasized. Finally, the preparation of magnetic nanomaterials by chemical coprecipitation is summarized and prospected. Full article
(This article belongs to the Special Issue Preparation of High-Performance Non-ferrous Metals and Composites)
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15 pages, 31491 KiB  
Article
Finite Element Analysis of Large Plastic Deformation Process of Pure Molybdenum Plate during Hot Rolling
by Jiayu Han, Quan Cheng, Ping Hu, Hairui Xing, Shilei Li, Songwei Ge, Xingjiang Hua, Boliang Hu, Wen Zhang and Kuaishe Wang
Metals 2023, 13(1), 101; https://doi.org/10.3390/met13010101 - 3 Jan 2023
Cited by 4 | Viewed by 1868
Abstract
The rare molybdenum resources are being increasingly used in heavy industries. In this study, the common unidirectional and cross hot rolling operations, for pure molybdenum plates, were numerically simulated by using MSC. Marc software. An elastic–plastic finite element model was employed, together with [...] Read more.
The rare molybdenum resources are being increasingly used in heavy industries. In this study, the common unidirectional and cross hot rolling operations, for pure molybdenum plates, were numerically simulated by using MSC. Marc software. An elastic–plastic finite element model was employed, together with the updated Lagrange method, to predict stress and strain fields in the workpiece. The results showed that there was a typical three-dimensional additional compressive stress (σy> σz > σx) in the deformation zone, while strain could be divided into uniaxial compressive strain and biaxial tensile strain (εy > εx > εz). Tensile stress σx increased with the accumulation of reduction and the decrease in friction coefficient at the edge of the width spread. More importantly, the interlaced deformation caused by cross-commutations, which were helpful in repairing the severe anisotropy created by unidirectional hot rolling. The evolution of the temperature field of pure molybdenum plate was investigated. The surface quenching depth of the pure molybdenum plate was about 1/6 H under different initial temperatures and reductions. In addition, the fundamental reason for the nonuniform distribution of stress and strain fields was the joint influence of rolling stress, contact friction, and external resistance. By comparing the theoretical simulation value of the model with the experimental verification data, we found that the model was aligning well with the actual engineering. Full article
(This article belongs to the Special Issue Preparation of High-Performance Non-ferrous Metals and Composites)
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22 pages, 12873 KiB  
Article
Exploring the Formation Mechanism, Evolution Law, and Precise Composition Control of Interstitial Oxygen in Body-Centered Cubic Mo
by Hai-Rui Xing, Ping Hu, Chao-Jun He, Xiang-Yang Zhang, Fan Yang, Jia-Yu Han, Song-Wei Ge, Xing-Jiang Hua, Wen Zhang, Kuai-She Wang and Alex A. Volinsky
Metals 2023, 13(1), 1; https://doi.org/10.3390/met13010001 - 20 Dec 2022
Cited by 1 | Viewed by 1612
Abstract
Interstitial oxygen (O) on the formation mechanism and enrichment distribution of body-centered cubic (BCC) molybdenum (Mo) has rarely been reported, and the O usually can cause serious brittle fracture in Mo. In this paper, we studied the formation mechanism and evolution of oxygen [...] Read more.
Interstitial oxygen (O) on the formation mechanism and enrichment distribution of body-centered cubic (BCC) molybdenum (Mo) has rarely been reported, and the O usually can cause serious brittle fracture in Mo. In this paper, we studied the formation mechanism and evolution of oxygen (O) when it was precisely controlled in the range of 3700–8600 parts per million (wppm). It was found that, with an increase in O concentration, O element not only existed in the form of solid solution but generated O element with different valence states in Mo metal. Large amounts of MoO2, MoO3, and Mo4O11 intermediate oxides were identified by electron probe micro-analyzer (EPMA) and X-ray photoelectron spectroscopy (XPS). Thermodynamic calculations revealed the formation process of oxides, and authenticity of the presence of O was verified by XPS. Enrichment and distribution of O element were analyzed by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and EPMA. Moreover, the compressive yield strength and hardness of Mo were greatly affected by O content range of 4500–8600 wppm. Our study is helpful to understand the behavior of interstitial impurity O in refractory Mo metals and provides important guidance for development of high-purity rare Mo metals. Full article
(This article belongs to the Special Issue Preparation of High-Performance Non-ferrous Metals and Composites)
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16 pages, 7641 KiB  
Article
The Effect of Heat Treatment and Different Degrees of Deformation on the Microstructure and Mechanical Properties of Pure Mo Sheets
by Wenjing Chen, Lina Gu, Jiayu Han, Songwei Ge, Xingjiang Hua, Ping Hu, Run Bai, Wen Zhang, Tian Chang and Kuaishe Wang
Metals 2022, 12(12), 2189; https://doi.org/10.3390/met12122189 - 19 Dec 2022
Cited by 1 | Viewed by 1896
Abstract
Molybdenum has a broad application and good prospect in the field of nuclear energy, aerospace, electronics, etc., due to its high melting point, high hardness, corrosion resistance and other excellent performances. In this paper, an isothermal and isochronous annealing heat treatment, at the [...] Read more.
Molybdenum has a broad application and good prospect in the field of nuclear energy, aerospace, electronics, etc., due to its high melting point, high hardness, corrosion resistance and other excellent performances. In this paper, an isothermal and isochronous annealing heat treatment, at the temperature of 800–1300 °C for 0.5–2 h, was applied to pure molybdenum (PM) sheets with deformation of 70%, 80%, 90%, and 95%. The initial deformation of the PM sheet was increased from 70% to 95%. After annealing at 900–1200 °C for 1 h, the recrystallized grain size gradually decreased. The Goss texture ({110}<001>) was always present in the pure molybdenum sheet with 95% deformation during heat treatment, but its strength decreased with the increase of the temperature. The copper texture ({112}<110>) deflected to a cubic texture, and its orientation changed from {001}<110> to that of cube texture {110}<100>. With the increase of the temperature, the cubic texture was obtained more easily in the pure molybdenum sheet. The recrystallization nucleation mechanism of the pure molybdenum sheet with 95% deformation was mainly in situ nucleation and orientation nucleation. The Avrami index of the pure molybdenum sheet with 95% deformation was calculated by the JMAK equation and found to be 3.6. Full article
(This article belongs to the Special Issue Preparation of High-Performance Non-ferrous Metals and Composites)
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