Special Issue "Mechanical Behaviour of Aluminium Alloys"

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Materials".

Deadline for manuscript submissions: 30 April 2018

Special Issue Editors

Guest Editor
Prof. Dr. Ricardo Branco

Department of Mechanical Engineering, University of Coimbra, Coimbra 3004-531, Portugal
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Interests: mechanical behavior of materials; fatigue and fracture; multiaxial fatigue life prediction; low cycle fatigue; numerical modelling of fatigue crack growth
Guest Editor
Prof. Dr. Filippo Berto

Department of Mechanical and Industrial Engineering, Faculty of Engineering, Norwegian University of Science and Technology, Trondheim NO-7491, Norway
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Interests: fatigue of advanced and traditional materials; surface roughness; tribology; fracture mechanics; solid mechanics
Guest Editor
Prof. Dr. Andrei Kotousov

School of Mechanical Engineering, University of Adelaide, South Australia 5005, Australia
Website | E-Mail
Interests: solid mechanics; fracture mechanics

Special Issue Information

Dear Colleagues,

Aluminum is the leading non-ferrous metal in use. This is due to its unique properties, such as lightness, strength, corrosion resistance, toughness, electrical and thermal conductivity, recyclability, and formability. The combination of these specific features makes aluminum alloys attractive for a broad spectrum of applications in different strategic sectors, namely automotive, aerospace, mold and structural industries, among others. Despite the knowledge accumulated over time, recent advances in the production and processing techniques, combined with the development of new and more ingenious products, require a profound understanding of the mechanical behavior of aluminum alloys.

The goal of this Special Issue is to foster the dissemination of the latest research devoted to the structural integrity of aluminium alloys. Original contributions dealing with the effects of manufacturing strategies, chemical composition, microstructure, environmental conditions, and loading history on mechanical behavior of aluminum alloys are encouraged. Both experimental and numerical approaches are accepted.  

Prof.Ricardo Branco
Prof. Filippo Berto
Prof. Andrei Kotousov
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. Applied Sciences 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 1200 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

  • Aluminium alloys

  • Structural integrity

  • Manufacturing and processing techniques

  • Alloy design

  • Microstructure and texture

  • Mechanical properties

  • Loading history

  • Environmental conditions

  • Applications

Published Papers (2 papers)

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Research

Open AccessArticle Impact of Alloying on Stacking Fault Energies in γ-TiAl
Appl. Sci. 2017, 7(11), 1193; doi:10.3390/app7111193
Received: 21 October 2017 / Revised: 13 November 2017 / Accepted: 15 November 2017 / Published: 21 November 2017
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Abstract
Microstructure and mechanical properties are key parameters influencing the performance of structural multi-phase alloys such as those based on intermetallic TiAl compounds. There, the main constituent, a γ-TiAl phase, is derived from a face-centered cubic structure. Consequently, the dissociation of dislocations and
[...] Read more.
Microstructure and mechanical properties are key parameters influencing the performance of structural multi-phase alloys such as those based on intermetallic TiAl compounds. There, the main constituent, a γ -TiAl phase, is derived from a face-centered cubic structure. Consequently, the dissociation of dislocations and generation of stacking faults (SFs) are important factors contributing to the overall deformation behavior, as well as mechanical properties, such as tensile/creep strength and, most importantly, fracture elongation below the brittle-to-ductile transition temperature. In this work, SFs on the { 111 ) plane in γ -TiAl are revisited by means of ab initio calculations, finding their energies in agreement with previous reports. Subsequently, stacking fault energies are evaluated for eight ternary additions, namely group IVB–VIB elements, together with Ti off-stoichiometry. It is found that the energies of superlattice intrinsic SFs, anti-phase boundaries (APBs), as well as complex SFs decrease by 20–40% with respect to values in stoichiometric γ -TiAl once an alloying element X is present in the fault plane having thus a composition of Ti-50Al-12.5X. In addition, Mo, Ti and V stabilize the APB on the (111) plane, which is intrinsically unstable at 0 K in stoichiometric γ -TiAl. Full article
(This article belongs to the Special Issue Mechanical Behaviour of Aluminium Alloys)
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Open AccessArticle The Stability of New Single-Layer Combined Lattice Shell Based on Aluminum Alloy Honeycomb Panels
Appl. Sci. 2017, 7(11), 1150; doi:10.3390/app7111150
Received: 16 October 2017 / Revised: 31 October 2017 / Accepted: 6 November 2017 / Published: 9 November 2017
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Abstract
This article proposes a new type of single-layer combined lattice shell (NSCLS); which is based on aluminum alloy honeycomb panels. Six models with initial geometric defect were designed and precision made using numerical control equipment. The stability of these models was tested. The
[...] Read more.
This article proposes a new type of single-layer combined lattice shell (NSCLS); which is based on aluminum alloy honeycomb panels. Six models with initial geometric defect were designed and precision made using numerical control equipment. The stability of these models was tested. The results showed that the stable bearing capacity of NSCLS was approximately 16% higher than that of a lattice shell with the same span without a reinforcing plate. At the same time; the properties of the NSCLS were sensitive to defects. When defects were present; its stable bearing capacity was decreased by 12.3% when compared with the defect-free model. The model with random defects following a truncated Gaussian distribution could be used to simulate the distribution of defects in the NSCLS. The average difference between the results of the nonlinear analysis and the experimental results was 5.7%. By calculating and analyzing nearly 20,000 NSCLS; the suggested values of initial geometric defect were presented. The results of this paper could provide a theoretical basis for making and revising the design codes for this new combined lattice shell structure. Full article
(This article belongs to the Special Issue Mechanical Behaviour of Aluminium Alloys)
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