Special Issue "Sintering and Processing of Metallic Materials: Experiments and Simulation"

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

Deadline for manuscript submissions: 28 February 2021.

Special Issue Editors

Prof. Dr. Juan Manuel Montes Martos
E-Mail Website
Guest Editor
Universidad de Sevilla, Escuela Técnica Superior de Ingeniería, 41092 Sevilla, Spain
Interests: nanostructured materials; amorphous metals; powder metallurgy; mechanical alloying; electrical consolidation techniques; magnetic properties; hard metals; modeling and simulation
Dr. Fátima Ternero Fernández
E-Mail Website
Guest Editor
Universidad de Sevilla, Escuela Técnica Superior de Ingeniería, 41092 Sevilla, Spain
Interests: nano-materials; nanostructured materials; amorphous metals; powder metallurgy; mechanical alloying; electrical consolidation techniques

Special Issue Information

Dear colleagues,

The market share of sintered metallic materials is constantly increasing and is a permanent stimulus for the development of new materials and new technologies. From the beginning, powder metallurgy was used to produce materials that could not be produced otherwise. However, the obvious advantages of the method have meant that today many applications make use of powder metallurgy, for very different purposes. What makes this technique so attractive is the possibility to control the composition of the starting powders, altering their size, morphology, and internal structure (in micro or nanoscale), which allows some control of the properties of the final products. The forming and sintering process, carried out in several stages or all at once, normally requires the concurrence of pressure and temperature, but more recently it can also include other factors such as electric and magnetic fields, microwave, or laser light. The ultimate goal is usually to obtain fully dense materials with a net shape or near-net shape.

Naturally, these manufacturing and processing routes are becoming increasingly complex. The modeling and simulation of these processes offer virtual tools to assist in the development and optimization of the process, and reduce the cost of experimental testing and material waste.

In this Special Issue, we welcome papers that focus on the forming and sintering methods of metallic powders, with an emphasis on the simulation of such processes. Traditional routes are included, but also the most recent techniques, aimed at producing high-performance products.

Prof. Dr. Juan Manuel Montes Martos
Dr. Fátima Ternero Fernández
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 papers will be 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 2000 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

  • powder metallurgy
  • sintering
  • consolidation techniques
  • assisted sintering techniques
  • modeling and simulation

Published Papers

This special issue is now open for submission, see below for planned papers.

Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

1.
Title: Nickel Porous Compacts obtained by Medium-Frequency Electrical Resistance Sintering
Authors: Ternero*, E. Sánchez, P. Urban, R. Astacio, J.M. Montes

Affiliation: Advanced Materials Engineering Group, Escuela Técnica Superior de Ingeniería, Universidad de Sevilla, Camino de los Descubrimientos, s/n, 41092 Sevilla, Spain
Abstract: A commercially pure (c.p.) nickel powder was consolidated by Medium-Frequency Electrical Resistance Sintering (MF-ERS). In this consolidation technique, an external pressure and the heat generated by a low-voltage and high-intensity electrical current, are simultaneously applied to a powder mass. In this work, the effect of current intensity and heating time on the global porosity values, the porosity and microhardness distribution and the electrical resistivity of the sintered compacts was studied. A nickel powder (with a high tap porosity) and a low working pressure (only 100 MPa) were chosen in order to be able to obtain compacts with different levels of porosity. The properties of the compacts consolidated by MF-ERS are compared with the results obtained by the traditional powder metallurgy route, consisting in cold pressing and furnace sintering. A universal equation to describe the porosity influence on the all analyzed properties of the powder aggregates and sintered compacts is proposed and validated.

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