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Metals
Special Issues
Non-ferrous Alloys, Synthesis, Microstructure and Properties
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Non-ferrous Alloys, Synthesis, Microstructure and Properties

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Structural Integrity of Metals".

Deadline for manuscript submissions: closed (30 April 2022) | Viewed by 3644

Special Issue Editors

Dr. Roberto Martínez Sánchez

E-Mail Website
Guest Editor
Department of Metallurgy and Structural Integrity, Center for Research in Advanced Materials, Chihuahua 31136, Mexico
Interests: metal matrix composite; aluminum alloys; high-entropy alloys; phase transformations; microstructure relation with mechanical properties
Special Issues, Collections and Topics in MDPI journals
Dr. Carlos G. Garay Reyes

E-Mail Website
Guest Editor
Department of Metallurgy and Structural Integrity, Center for Research in Advanced Materials, Chihuahua 31136, Mexico
Interests: high-entropy alloys; metal matrix composite; aluminum alloys; Ni-based alloys; phase transformations; mechanical properties
Special Issues, Collections and Topics in MDPI journals
Dr. Sergio Gonzalez Sanchez

E-Mail Website
Guest Editor
Department of Mechanical and Construction Engineering, Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne NE1 8ST, UK
Interests: light alloys; rapid solidification; shape memory alloys; mechanical properties; high-entropy alloys
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The lines of research related to the synthesis and the control of microstructure and mechanical properties in non-ferrous alloys are an essential focus of attention at different levels of research due to the current requirements of obtaining materials for more demanding applications. Thus, the metals, alloy manufacturing processes, and forming processes have evolved at an accelerated rate intending to be at the vanguard of obtaining new alloys with mechanical and microstructural properties that meet such requirements.

Therefore, the design, synthesis, and development of new alloys; the optimization of commercial alloys; the modification of the microstructure to achieve the required properties or to improve the existing properties; the design of new routes for the forming process and heat treatments are the present challenges of the new generations in metallurgy and materials science.

Prof. Dr. Roberto Martínez Sánchez
Dr. Carlos G. Garay Reyes
Dr. Sergio Gonzalez Sanchez
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 alloys
  • Synthesis
  • Physical and chemical properties
  • Microstructure
  • Heat treatments

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Published Papers (1 paper)

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Research

13 pages, 11334 KiB  
Article
Effect on Microstructure and Hardness of Reinforcement in Al–Cu with Al4C3 Nanocomposites
by Veronica Gallegos Orozco, Audel Santos Beltrán, Miriam Santos Beltrán, Hansel Medrano Prieto, Carmen Gallegos Orozco and Ivanovich Estrada Guel
Metals 2021, 11(8), 1203; https://doi.org/10.3390/met11081203 - 28 Jul 2021
Cited by 5 | Viewed by 1698
Abstract
By superposition, the individual strengthening mechanisms via hardness analyses and the particle dispersion contribution to strengthening were estimated for Al–C and Al–C–Cu composites and pure Al. An evident contribution to hardening due to the density of dislocations was observed for all samples; the [...] Read more.
By superposition, the individual strengthening mechanisms via hardness analyses and the particle dispersion contribution to strengthening were estimated for Al–C and Al–C–Cu composites and pure Al. An evident contribution to hardening due to the density of dislocations was observed for all samples; the presence of relatively high-density values was the result of the difference in the coefficients of thermal expansion (CTE) between the matrix and the reinforced particles when the composites were subjected to the sintering process. However, for the Al–C–Cu composites, the dispersion of the particles had an important effect on the strengthening. For the Al–C–Cu composites, the maximum increase in microhardness was ~210% compared to the pure Al sample processed under the same conditions. The crystallite size and dislocation density contribution to strengthening were calculated using the Langford–Cohen and Taylor equations from the microstructural analysis, respectively. The estimated microhardness values had a good correlation with the experimental. According to the results, the Cu content is responsible for integrating and dispersing the Al4C3 phase. The proposed mathematical equation includes the combined effect of the content of C and Cu (in weight percent). The composites were fabricated following a powder metallurgical route complemented with the mechanical alloying (MA) process. Microstructural analyses were carried out through X-ray analyses coupled with a convolutional multiple whole profile (CMWP) fitting program to determine the crystallite size and dislocation density. Full article
(This article belongs to the Special Issue Non-ferrous Alloys, Synthesis, Microstructure and Properties)
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