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Ultrafine-Grained and Nanostructured Metallic Materials Attained via Severe Plastic Deformation...
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Ultrafine-Grained and Nanostructured Metallic Materials Attained via Severe Plastic Deformation (SPD) Processing

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Crystallography and Applications of Metallic Materials".

Deadline for manuscript submissions: closed (30 September 2023) | Viewed by 3016

Special Issue Editors

Dr. Nong Gao

E-Mail Website
Guest Editor
Materials Research Group, Mechanical Engineering Department, Faculty of Engineering and the Environment, University of Southampton, Southampton SO17 1BJ, UK
Interests: microstructure; mechanical property; fatigue, tribology; corrosion; 3D printing
Special Issues, Collections and Topics in MDPI journals
Dr. Xiaoguang Qiao

E-Mail Website
Guest Editor
Department of Materials Science, School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
Interests: designing and developing high performance Mg alloys; severe plastic deformation (SPD); strengthening and toughening of Mg alloys; nanoindentation

Special Issue Information

Dear Colleagues,

Severe plastic deformation (SPD) processing has been established as one of the most prominent techniques used to produce ultrafine-grained (UFG) and nano-grained (NG) metallic materials. These two classes of materials have attracted widespread interest in both academia and industries due to their enhanced properties that promise significant potential for various applications compared to conventional coarse-grained (CG) materials. UFG and NG materials attained through SPD processing typically exhibit superior strength, improved corrosion and wear performance, and superplasticity at room temperature. These are often attributed to the extreme grain refinement down to the sub-micron and/or nano-regime and other associated extremely fine microstructural features. In the past three decades, UFG metals have been produced by various techniques apart from the SPD techniques, including even by traditional industrial techniques such as low-temperature extrusion and rolling. Many new phenomena have been observed, e.g., micro-yielding of UFG Mg alloys. Research interests have not only been limited to microstructure evolution, strengthening, hardening and forming, but also have extended to the reliability and applications of UFG metals, such as tribology, fatigue and fracture toughness. This Special Issue will cover a wide scope of research on all aspects of UFG/NG materials, including processing, microstructures, and properties. We would like to invite contributions on, but not limited to, the following topics:

  • Recent developments in SPD techniques
  • SPD processing of multiple metallic materials
  • Combination of SPD processing with other manufacturing processes, e.g., additive manufacturing or subtractive manufacturing
  • Process–microstructure–property relationship of SPD-processed metallic materials
  • Advanced characterization techniques for UFG and/or NG materials attained by SPD processing
  • Underlying mechanisms and principles of deformation and strengthening of SPD-processed metallic materials
  • Strategies for optimizing strength and ductility in SPD-processed metallic materials
  • Testing of properties attained in SPD-processed metallic materials, e.g., tensile strength, ductility, superplasticity, corrosion, wear performance, etc.
  • Computational/analytical modelling and simulation of SPD processes
  • Prediction of microstructural evolution in SPD-processed metallic materials through computational modelling and simulation
  • UFG/NC materials produced by other techniques.
  • Literature review on SPD-related topics.

Dr. Nong Gao
Dr. Xiaoguang Qiao
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

  • ultrafine-grained materials
  • nanostructured materials
  • severe plastic deformation
  • hybrid manufacturing
  • process-microstructure-property relationship
  • heat treatment
  • microstructural characterization
  • materials testing
  • modelling and simulation

Published Papers (1 paper)

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Review

25 pages, 7107 KiB  
Review
Conceptual Analysis on Severe Plastic Deformation Processes of Shape Memory Alloys: Mechanical Properties and Microstructure Characterization
by Mahmoud Ebrahimi, Shokouh Attarilar, Ceren Gode, Sumanth Ratna Kandavalli, Mahmoud Shamsborhan and Qudong Wang
Metals 2023, 13(3), 447; https://doi.org/10.3390/met13030447 - 21 Feb 2023
Cited by 9 | Viewed by 2597
Abstract
Shape memory alloys (SMAs) are types of materials that can restore their original shape upon severe or quasi-plastic deformation, being exposed to specific external stimuli, including heating, electric current, magnetic field, etc. They are a category of functional materials that provides superelasticity as [...] Read more.
Shape memory alloys (SMAs) are types of materials that can restore their original shape upon severe or quasi-plastic deformation, being exposed to specific external stimuli, including heating, electric current, magnetic field, etc. They are a category of functional materials that provides superelasticity as a significant material property. The roots of this unintentional discovery were in the 20th century, and later it attracted the attention of various industries, including aerospace, medical, mechanical, manufacturing industries, etc. Later developments mainly focused on improving the properties of these materials. One of the ways in which this is achieved is the application of intensive plastic strains on SMAs through severe plastic deformation (SPD) methods, leading to extreme grain refinement. Superelasticity is a key characteristic of SMAs and is known as the capacity of a polycrystalline material to display extremely high elongations before failure, in a typically isotropic way, with an approximate strain rate of 0.5. Utilization of SPD techniques can also affect and lead to superior superelasticity responses in SMAs. Several SPD methodologies have been introduced over the decades, to produce ultrafine-grained and even nanostructured materials, including constrained groove pressing, equal-channel angular pressing, high-speed high-pressure torsion, accumulative roll bonding, etc. This paper aims to present a clear view of the mechanical properties and microstructure evolution of shape memory alloys after processing by some SPD methods, and to show that SPD methods can be a great option for developing SMAs and expanding their industrial and technological applications. Full article
(This article belongs to the Special Issue Ultrafine-Grained and Nanostructured Metallic Materials Attained via Severe Plastic Deformation (SPD) Processing)
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