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Metals
Special Issues
Structure and Phase Transformation in the Al Alloys
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Structure and Phase Transformation in the Al Alloys

A special issue of Metals (ISSN 2075-4701).

Deadline for manuscript submissions: closed (30 June 2021) | Viewed by 2505

Special Issue Editor

Dr. Andrey Pozdniakov

E-Mail Website
Guest Editor
Department of Physical Metallurgy of Non-Ferrous Metals, National University of Science & Technology (MISIS), Leninskiy Ave 4, Moscow, Russia
Interests: Al alloys; microstructure; phase transformation; heat treatment; mechanical properties; corrosion resistance
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Aluminum alloys are widely used in automobile, aircraft, shipbuilding, and other industries because of a good combination of technological parameters, such as being light weight, their mechanical properties, and having corrosion resistance. Products from aluminum alloys are obtained by casting and pressure treatment. The microstructure; phase composition, which is formed during casting; heat treatment; and thermomechanical treatment define the final properties and application of the materials.

The current pace of industrial development requires materials with higher levels of mechanical and technological properties, specified by a complex of characteristics. The optimization of the structure and phase composition of alloys and the search for promising alloying systems and elements for the development of new materials with enhanced operational and technological properties is an urgent task, including for expanding the use of aluminum alloys and improving the level of technology.

Research articles focusing on the development of prospective Al alloys and an investigation of the evaluation of the structure and phase composition under casting, heat, and thermomechanical treatment are encouraged.

Prof. Dr. Andrey Vladimirovich Pozdniakov
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

  • Al alloys
  • casting alloys
  • wrought alloys
  • microstructure
  • phase composition
  • phase transformation
  • heat treatment
  • strengthening
  • mechanical properties
  • corrosion resistance

Published Papers (1 paper)

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Research

11 pages, 15025 KiB  
Article
Microstructure and Mechanical Properties of Novel Quasibinary Al-Cu-Yb and Al-Cu-Gd Alloys
by Sayed Amer, Ruslan Barkov and Andrey Pozdniakov
Metals 2021, 11(3), 476; https://doi.org/10.3390/met11030476 - 13 Mar 2021
Cited by 14 | Viewed by 2085
Abstract
Microstructure of Al-Cu-Yb and Al-Cu-Gd alloys at casting, hot-rolled -cold-rolled and annealed state were observed; the effect of annealing on the microstructure was studied, as were the mechanical properties and forming properties of the alloys, and the mechanism of action was explored. Analysis [...] Read more.
Microstructure of Al-Cu-Yb and Al-Cu-Gd alloys at casting, hot-rolled -cold-rolled and annealed state were observed; the effect of annealing on the microstructure was studied, as were the mechanical properties and forming properties of the alloys, and the mechanism of action was explored. Analysis of the solidification process showed that the primary Al solidification is followed by the eutectic reaction. The second Al8Cu4Yb and Al8Cu4Gd phases play an important role as recrystallization inhibitor. The Al3Yb or (Al, Cu)17Yb2 phase inclusions are present in the Al-Cu-Yb alloy at the boundary between the eutectic and aluminum dendrites. The recrystallization starting temperature of the alloys is in the range of 250–350 °C after rolling with previous quenching at 590 and 605 °C for Al-Cu-Yb and Al-Cu-Gd, respectively. The hardness and tensile properties of Al-Cu-Yb and Al-Cu-Gd as-rolled alloys are reduced by increasing the annealing temperature and time. The as-rolled alloys have high mechanical properties: YS = 303 MPa, UTS = 327 MPa and El. = 3.2% for Al-Cu-Yb alloy, while YS = 290 MPa, UTS = 315 MPa and El. = 2.1% for Al-Cu-Gd alloy. Full article
(This article belongs to the Special Issue Structure and Phase Transformation in the Al Alloys)
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