Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
4.4
2.9
Journals
Metals
Special Issues
Microstructure, Mechanical Properties and Solidification Behavior of Metals and Alloys...
share announcement

Microstructure, Mechanical Properties and Solidification Behavior of Metals and Alloys (Volume 2)

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: 31 August 2024 | Viewed by 1164

Special Issue Editor

Dr. Crystopher Cardoso de Brito

E-Mail Website
Guest Editor
Assistant Professor, School of Engineering, Campus of São João da Boa Vista, São Paulo State University, UNESP, São João da Boa Vista 13876-750, SP, Brazil
Interests: casting; solidification
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Solidification is one of the oldest processes for producing complex shapes for applications ranging from art to industry. It is a multidisciplinary field of high importance for understanding industrial processing involving molten alloys such as welding, continuous casting, powder metallurgy and foundry. Process limits are still present and are to be overcome. Many research groups have carried out valuable research regarding particular subjects such as nucleation, macrostructure, microstructural transitions, as-cast microstructure, porosity, macrosegregation, metal/mold interface, interdendritic fluid flow, additive manufacturing and mechanical and corrosion properties of as-cast metals. All these topics have been studied for decades following either experimental or modeling approaches, with remarkable complementary aspects between them. Nowadays, complementary research has been developed concerning the evaluation of experimental data from unsteady state solidification. Knowledge of the physical phenomena occurring at microscopic and macroscopic scales, between liquid and solid phases, is fundamental for the control of the microstructure in all the solidification processes, from casting to welding. The comprehension of solidification remains essential for the development of various recently proposed processes. For example, additive manufacturing processes are still to be interpreted concerning how much the solidification thermal parameters can be used to design the solidification microstructure as well as to solve quality problems.

Dr. Crystopher Cardoso de Brito
Guest Editor

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

  • dendritic and cellular growth
  • intermetallic compounds growth
  • cast eutectic alloys
  • microstructure effect on the mechanical resistance
  • microstructure effect on the corrosion behavior
  • cast aluminum alloys
  • cast zinc alloys
  • cast solder alloys
  • solidification modeling
  • alloy atomization
  • heat transfer during solidification of additive manufacturing processes for metals

Published Papers (1 paper)

Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

14 pages, 14444 KiB  
Article
Fe-Containing Al-Based Alloys: Relationship between Microstructural Evolution and Hardness in an Al-Ni-Fe Alloy
by Jonas Faria, Andrei de Paula, Cássio Silva, Rafael Kakitani, André Barros, Amauri Garcia, Crystopher Brito and Noé Cheung
Metals 2023, 13(12), 1980; https://doi.org/10.3390/met13121980 - 06 Dec 2023
Viewed by 865
Abstract
Recycled Al alloys not only offer environmental and economic benefits but also present a valuable base for the development of innovative materials, such as Al-Ni-Fe alloys. This work particularly focuses on the microstructural changes and hardness of an Al-5Ni-1Fe alloy (wt.%) solidified with [...] Read more.
Recycled Al alloys not only offer environmental and economic benefits but also present a valuable base for the development of innovative materials, such as Al-Ni-Fe alloys. This work particularly focuses on the microstructural changes and hardness of an Al-5Ni-1Fe alloy (wt.%) solidified with an approximate 20-fold variation in cooling rates. For the various microstructural length scales obtained, only the eutectic regions exhibit a uniform pattern, with the eutectic colonies comprising an α-Al phase along with Al3Ni and Al9FeNi intermetallic compounds. It is shown that microstructural refinement can lead to a 36% increase in hardness. To represent this mathematically, hardness values are associated with the eutectic colony and intermetallic fiber spacings (λEC and λIF is, respectively) using experimental equations based on the Hall–Petch relationship and multiple linear regression. In addition, comparisons are undertaken with Al-5Ni and Al-1Fe (wt.%) alloy samples produced under the same conditions. The Al-5Ni-1Fe alloy exhibits higher hardness values than both the Al-5Ni and Al-1Fe binary alloys. Furthermore, the hardness of the ternary Al-Ni-Fe alloy is sensitive to microstructural refinement, a characteristic absent in the binary alloys. For λIF−1/2 = 1.56 µm−1/2 (coarser microstructure), the Al-5Ni-1Fe alloy exhibits a hardness of about 13% and 102% higher than that of the Al-5Ni and Al-1Fe alloys, respectively, while for λIF−1/2 = 1.81 µm−1/2 (finer microstructure), it demonstrates a hardness of approximately 39% and 147% higher as compared to that of the Al-5Ni and Al-1Fe alloys, respectively. Thus, this research provides experimental correlations that connect hardness, microstructure, and solidification thermal parameters, contributing to a better understanding for the design of as-cast Fe-contaminated Al-Ni-based alloys. Full article
(This article belongs to the Special Issue Microstructure, Mechanical Properties and Solidification Behavior of Metals and Alloys (Volume 2))
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-1
Back to TopTop