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Special Issue "Research and Development in the World Foundry Engineering: Materials, Properties and Applications"

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

Deadline for manuscript submissions: 31 December 2023 | Viewed by 453

Special Issue Editors

Department of Foundry Engineering, Silesian University of Technology, 7 Towarowa Street, 44-100 Gliwice, Poland
Interests: cast steel; cast iron; Al alloys; layered castings; heat treatment
Special Issues, Collections and Topics in MDPI journals
1. Department of Mechanical Engineering, University of Hail, P.O. Box 2440, Hail, Saudi Arabia
2. Casting Technology Department, Central Metallurgical Research and Development Institute (CMRDI), P.O. Box 87, Helwan 11421, Egypt
Interests: foundry engineering; bimetallic casting; composite casting; stainless steel; cast iron

Special Issue Information

Dear Colleagues,

Foundry engineering is still a strongly developing field of material science and an important branch of the production of metallic materials in the world. In this branch are realized a lot of novel and innovative studies within a framework of research and development works. The results of these studies are published in high-range journals such as Materials and the papers concerning foundry engineering are very popular and usable for many academic scientists and engineering work in many industries. Therefore, given the great potential for development in this field of science and industry, I invite you to submit your valuable articles to this Special Issue entitled “Research and Development in the World Foundry Engineering: Materials, Properties and Applications”, published in the journal Materials. This Special Issue is a continuation of previously published by MDPI with me as Guest Editor the book entitled “Novel Material and Technological Solutions in Foundry Engineering”, ISBN 978-3-0365-4394-9. The scope of this new Special Issue is focused on traditional cast materials such as ferrous alloys, i.e., cast steel or cast iron, and nonferrous metals alloys, i.e., Al, Cu, Mg, Zn and others, as well as bimetallic and composite castings manufactured using different technologies, for example, gravity casting, pressure casting, semi-solid casting, squeeze casting, continuous casting and others.

Once again, I cordially invite you to submit your original research papers or review articles that describe the current state of the art within the scope of this Special Issue “Research and Development in the World Foundry Engineering: Materials, Properties and Applications”.

Prof. Dr. Tomasz Wróbel
Prof. Dr. Mohamed Ramadan
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 2300 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

  • foundry engineering
  • ferrous and nonferrous alloys
  • foundry technologies
  • solidification and crystallization of metals and alloys
  • macro- and microstructure
  • mechanical properties

Published Papers (1 paper)

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Research

Article
A Novel Hydro-Thermal Synthesis of Nano-Structured Molybdenum-Iron Intermetallic Alloys at Relatively Low Temperatures
Materials 2023, 16(7), 2736; https://doi.org/10.3390/ma16072736 - 29 Mar 2023
Viewed by 225
Abstract
Nano-structured Mo/Fe intermetallics were synthesized from precursors that contained 72/28% and 30/70% molar ratios of Mo/Fe, which were given as precursors A and B, respectively. These precursors were prepared from the co-precipitation of aqueous hot solutions of ammonium heptamolybdate tetrahydrate (AHM) and ferrous [...] Read more.
Nano-structured Mo/Fe intermetallics were synthesized from precursors that contained 72/28% and 30/70% molar ratios of Mo/Fe, which were given as precursors A and B, respectively. These precursors were prepared from the co-precipitation of aqueous hot solutions of ammonium heptamolybdate tetrahydrate (AHM) and ferrous oxalate. The dry precipitates were thermally treated using TG-DSC to follow up their behavior during roasting, in an Ar atmosphere of up to 700 °C (10° K/min). The TG profile showed that 32.5% and 55.5% weight losses were measured from the thermal treatment of precursors A and B, respectively. The DSC heat flow profile showed the presence of endothermic peaks at 196.9 and 392.5–400 °C during the thermal decomposition of the AHM and ferrous oxalate, respectively. The exothermic peak that was detected at 427.5 °C was due to the production of nano-sized iron molybdate [Fe2(MoO4)3]. An XRD phase analysis indicated that iron molybdate was the only phase that was identified in precursor A, while iron molybdate and Fe2O3 were produced in precursor B. Compacts were made from the pressing of the nano-sized precursors, which were roasted at 500 °C for 3 h. The roasted compacts were isothermally reduced in H2 at 600–850 °C using microbalance, and the O2 weight loss that resulted from the reduction reactions was continuously recorded as a function of time. The influence of the reduction temperature and precursor composition on the reduction behavior of the precursors was studied and discussed. The partially and completely reduced compacts were examined with X-ray powder diffraction (XRD), a reflected light microscope (RLM), and a scanning electron microscope (SEM-EDS). Depending on the precursor composition, the reduction reactions of the [Fe2(MoO4)3] and Fe2O3 proceeded through the formation of intermediate lower oxides, prior to the production of the MO/Fe intermetallic alloys. Based on the intermediate phases that were identified and characterized at the early, intermediate, and final reduction degrees, chemical reaction equations were given to follow up the formation of the MoFe and MoFe3 intermetallic alloys. The mechanism of the reduction reactions was predicted from the apparent activation energy values (Ea) that were computed at the different reduction degrees. Moreover, mathematical formulations that were derived from the gas–solid reaction model were applied to confirm the reduction mechanisms, which were greatly dependent on the precursor composition and reduction temperature. However, it can be reported that nano-structured MoFe and MoFe3 intermetallic alloys can be successfully fabricated via a gas–solid reaction technique at lower temperatures. Full article
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