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Metals
Special Issues
Research on Eutectic Alloys
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Research on Eutectic Alloys

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Metal Casting, Forming and Heat Treatment".

Deadline for manuscript submissions: closed (20 April 2025) | Viewed by 537

Special Issue Editors

Dr. Junfeng Xu

E-Mail Website
Guest Editor
School of Materials and Chemical Engineering, Xi’an Technological University, Xi’an 710021, China
Interests: eutectic; recalescence; solidification; growth velocity; dendrite
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Changlin Yang

E-Mail Website
Guest Editor
Materials Processing Engineering, State Key Laboratory of Solidification Processing, Northwestern Polytechnic University, Xi’an 710072, China
Interests: solidification; magnesium alloy; steel; eutectic
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Eutectic alloys have a wide range of applications in people's daily lives, in industrial machine tools, in the automotive industry, aerospace industry, and occupy an important position in industry. For example, cast iron pots used for cooking, cast iron cylinder heads and shells for car engines, aluminum alloy wheels, aircraft combustion chambers made of eutectic high entropy alloys in aviation, and turbine blades are all related to eutectic alloys. The development of these fields cannot be separated from the development and progress of experimental and theoretical models, and computer simulation research methods for eutectic alloys. The experimental research reports on eutectic alloys have been increasing in recent years, with more and more types of new eutectic alloys and new application areas emerging. Since Jackson and Hunt proposed the classical JH-model in 1966, the solidification theory of eutectic alloys has been continuously enriched and rapidly developed with the increasing complexity of solidification conditions. Various new model theories are becoming increasingly accurate in describing the eutectic solidification process. The phase field method represented by Karma and the cellular automaton method represented by Rappaz have made significant progress and applications in eutectic simulation, especially in recent years, with more fruitful achievements.

In this Special Issue, we welcome articles on new forming methods for eutectic alloys, eutectic alloy solidification theory, eutectic microstructure evolution, eutectic material strengthening mechanisms, and heat treatment processes. The microstructure control process and related phase transformation theoretical models of eutectic alloys are particularly interesting, and research on additive manufacturing technology and high-performance products of eutectic alloys is also welcome for submission.

Dr. Junfeng Xu
Prof. Dr. Changlin Yang
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

  • eutectic
  • solidification
  • undercooling
  • alloy
  • growth
  • microstructure
  • metal
  • phase diagram
  • simulation

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Published Papers (1 paper)

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Research

14 pages, 4060 KiB  
Article
A Novel Method to Predict Phase Fraction Based on the Solidification Time on the Cooling Curve
by Junfeng Xu, Yindong Fang, Tian Yang and Changlin Yang
Metals 2025, 15(6), 652; https://doi.org/10.3390/met15060652 - 11 Jun 2025
Viewed by 172
Abstract
The phase fraction plays a critical role in determining the solidification characteristics of metallic alloys. In this study, we propose a novel method (fs = (t − tl)/(ts − tl)) for estimating the phase [...] Read more.
The phase fraction plays a critical role in determining the solidification characteristics of metallic alloys. In this study, we propose a novel method (fs = (t − tl)/(ts − tl)) for estimating the phase fraction based on the solidification time in cooling curves. This method was validated through an experimental analysis of Al-18 wt%Cu and Fe42Ni42B16 alloys, where the phase fractions derived from cooling curves were compared with quantitative microstructure evaluations using computer-aided image analysis and the box-counting method. Then, a comparison between the analysis using the present novel method and Newtonian thermal analysis demonstrates good agreement between the results. The present method is easier to operate, since it does not need derivative and integral operations as in Newtonian thermal analysis. In addition, based on the characteristics of the cooling curve, we also found two other relationships—V/Rc = D/ΔTc and RΔt = constant, where V is the solidification rate, Rc is the recalescence rate, D is the diameter of the focal area of the pyrometer, ΔTc is the recalescence height, R is the cooling rate, and Δt is the solidification plateau time. These findings establish an operational framework for quantifying phase fractions and solidification rates in rapid solidification. Full article
(This article belongs to the Special Issue Research on Eutectic Alloys)
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