Development of Light Alloys with Excellent Mechanical Properties

Topic Information

Dear Colleagues,

Light alloys, such as aluminum and magnesium, are important engineering materials for the automobile, aircraft, and electronic industries. In recent decades, scientific and technological advancements in the materials modelling, processing and characterisation of light alloys have led to the development of unique microstructure with superb mechanical performance. This is attributed to deeper understanding of the microstructural evolution during processing and the materials behavior under applied mechanical loading. However, future transport and electronic applications require the next generation of light alloys with exceptional strength, ductility, and recyclability in order to meet the demanding needs and improve the resource efficiency. Hence, this opens excellent opportunities to explore new design concepts and perform innovative research into the interplay between microstructure and mechanical properties of light alloys. For this reason, the present Topic “Development of light alloys with excellent mechanical properties” is put forward.

This Topic aims to collect excellent research studies of light alloys from all over the world on topics including but not limited to aluminum alloys, magnesium alloys, mechanical properties, microstructure, heat treatment, solidification, deformation, thermomechanical processing, precipitation, phase transformation, SEM, EBSD, FIB, TEM, DSC, X-ray diffraction, mechanical/corrosion /hardness testing, materials modelling, process simulations, machine learning and artificial intelligence.

Dr. Zhirou Zhang
Prof. Dr. Isaac Chang
Topic Editors

Keywords

Participating Journals

Journal Name	Impact Factor	CiteScore	Launched Year	First Decision (median)	APC
Alloys alloys	-	-	2022	22.5 Days	CHF 1000	Submit
Materials materials	3.1	5.8	2008	13.9 Days	CHF 2600	Submit
Metals metals	2.6	4.9	2011	17.8 Days	CHF 2600	Submit

Preprints.org is a multidisciplinary platform offering a preprint service designed to facilitate the early sharing of your research. It supports and empowers your research journey from the very beginning.

MDPI Topics is collaborating with Preprints.org and has established a direct connection between MDPI journals and the platform. Authors are encouraged to take advantage of this opportunity by posting their preprints at Preprints.org prior to publication:

1. Share your research immediately: disseminate your ideas prior to publication and establish priority for your work.
2. Safeguard your intellectual contribution: Protect your ideas with a time-stamped preprint that serves as proof of your research timeline.
3. Boost visibility and impact: Increase the reach and influence of your research by making it accessible to a global audience.
4. Gain early feedback: Receive valuable input and insights from peers before submitting to a journal.
5. Ensure broad indexing: Web of Science (Preprint Citation Index), Google Scholar, Crossref, SHARE, PrePubMed, Scilit and Europe PMC.

Published Papers (2 papers)

Order results

Content type Publication Date

Result details

Normal Extended Compact

Journals

All Alloys Materials Metals

Show export options expand_more Show export options expand_less

Select all

Export citation of selected articles as:

Plain Text BibTeX BibTeX (without abstracts) Endnote Endnote (without abstracts) Tab-delimited RIS

Error

Oops... you haven't selected anything for export.

Ok

clear

13 pages, 8688 KiB  

Open AccessArticle

Effect of Processing Route on Microstructure and Mechanical Properties of an Al-12Si Alloy

by Abdulrahman Alsolami, Adnan Zaman, Fahad Alshabouna, Abdulaziz Kurdi, Ahmed Degnah, Salman Alfihed, Thamer Tabbakh and Animesh Kumar Basak

Materials 2024, 17(19), 4780; https://doi.org/10.3390/ma17194780 - 28 Sep 2024

Viewed by 1238

Abstract

Two different microstructures of an Al-12Si (wt. %) alloy were produced, respectively, via a powder laser bed fusion (P-LBF) additive manufacturing and casting. Compared to casting, additive manufacturing of Al-based alloy requires extra care to minimize oxidation tendency. The role of the microstructure [...] Read more.

Two different microstructures of an Al-12Si (wt. %) alloy were produced, respectively, via a powder laser bed fusion (P-LBF) additive manufacturing and casting. Compared to casting, additive manufacturing of Al-based alloy requires extra care to minimize oxidation tendency. The role of the microstructure on the mechanical properties of Al-12Si (wt. %) alloy was investigated by in situ compression of the micro-pillars. The microstructure of additively manufactured specimens exhibited a sub-cellular (~700 nm) nature in the presence of melt-pool arrangements and grain boundaries. On the other hand, the microstructure of the cast alloy contains typical needle-like eutectic structures. This striking difference in microstructure had obvious effects on the plastic flow of the materials under compression. The yield and ultimate compressive strength of the additively manufactured alloy were 23.69–27.94 MPa and 75.43–81.21 MPa, respectively. The cast alloy exhibited similar yield strength (31.46 MPa); however, its ultimate compressive strength (34.95 MPa) was only half that of the additively manufactured alloy. The deformation mechanism, as unrevealed by SEM investigation on the surface as well as on the cross-section of the distorted micro-pillars, confirms the presence of ductile and quasi-ductile facture of the matrix and the Si needle, respectively, in the case of the cast alloy. In contrast, the additively manufactured alloy exhibits predominantly ductile fractures. Full article

(This article belongs to the Topic Development of Light Alloys with Excellent Mechanical Properties)

►▼ Show Figures

Figure 1

15 pages, 9839 KiB  

Open AccessArticle

Effect of Extrusion Ratio on Mechanical Behavior and Microstructure Evolution of 7003 Aluminum Alloy at High-Speed Impact

by Rui Xing and Pengcheng Guo

Materials 2024, 17(17), 4219; https://doi.org/10.3390/ma17174219 - 26 Aug 2024

Cited by 1 | Viewed by 1039

Abstract

The extrusion ratio (ER) is one of the most important factors affecting the service performance of aluminum profiles. In this study, the influence of ER on the mechanical behavior and microstructure evolution of 7003 aluminum alloy at high-speed impact with strain rates ranging [...] Read more.

The extrusion ratio (ER) is one of the most important factors affecting the service performance of aluminum profiles. In this study, the influence of ER on the mechanical behavior and microstructure evolution of 7003 aluminum alloy at high-speed impact with strain rates ranging from 700 s⁻¹ to 1100 s⁻¹ was investigated. The studied alloy with an ER of 56 formed coarse grain rings during the heat treatment. The microstructure of the alloys with ERs of 20 and 9 is relatively uniform. The results indicate that under high-speed impact, the mechanical response behavior of the 7003-T6 alloy with different ERs is different. For the alloy with an ER of 56, strain hardening is the main mechanism of plastic deformation. In contrast, a flow stress reduction occurs at middle deformation stage for the ones with ERs of 20 and 9 due to concentrated deformation, which is more significant in the alloy with an ER of 20. Under high-speed impact, the alloy with an ER of 56 undergoes uneven plastic deformation due to the presence of coarse grain rings. The deformation is mainly borne by the region of coarse grains near the edge, and the closer to the center, the smaller the deformation. The deformation of the alloys with ERs of 20 and 9 is relatively uniform, but exhibits localized concentrated deformation in the area near the edge. The significant plastic deformation within deformation band causes a local temperature rise, resulting in a slight decrease in flow stress after the peak. These results can provide reliable data support for the application of 7003 aluminum alloy in the vehicle body crash energy absorption structure. Full article

(This article belongs to the Topic Development of Light Alloys with Excellent Mechanical Properties)

►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less

Select all

Export citation of selected articles as:

Plain Text BibTeX BibTeX (without abstracts) Endnote Endnote (without abstracts) Tab-delimited RIS

 

Error

Oops... you haven't selected anything for export.

Ok

clear

Displaying articles 1-2