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Metals
Special Issues
Alloy Specific Considerations for Friction Stir Welding
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Alloy Specific Considerations for Friction Stir Welding

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

Deadline for manuscript submissions: closed (28 February 2023) | Viewed by 2699

Special Issue Editor

Dr. Yuri Hovanski

E-Mail Website
Guest Editor
Department of Manufacturing Engineering, Brigham Young University, Provo, UT 84602, USA
Interests: friction stir welding; smart manufacturing
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

With a growing library of information available from the friction stir welding community, the recognition that solid-state processing may influence different alloys in unique ways is clear. Numerous studies focus on one specific alloy or another, allowing for secondary comparisons of the influence of varying alloys in a friction stir process, but few studies directly evaluate the effect of the alloys on the process.

This Special Issue seeks papers that help to elucidate the differences between alloys that have been processed with friction stir technologies, specifically in the following areas:

  • Effects of tooling and process parameters;
  • Alloy/material-specific microstructures and textures;
  • Unique properties derived from advanced characterization and testing;
  • Modeling and simulation results capable of distinguishing alloy specific variation;
  • Distortion and residual stress data specific to alloys.

Dr. Yuri Hovanski
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

  • friction stir
  • friction stir welding
  • friction stir processing
  • additive friction stir
  • alloys
  • properties
  • simulation
  • residual stress

Published Papers (1 paper)

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Research

11 pages, 20430 KiB  
Article
Neutron Imaging of Al6061 Prepared by Solid-State Friction Stir Additive Manufacturing
by Saber Nemati, Leslie G. Butler, Kyungmin Ham, Gerald L. Knapp, Congyuan Zeng, Selami Emanet, Hamed Ghadimi, Shengmin Guo, Yuxuan Zhang and Hassina Bilheux
Metals 2023, 13(2), 188; https://doi.org/10.3390/met13020188 - 17 Jan 2023
Cited by 6 | Viewed by 2334
Abstract
Solid-state Friction Stir Additive Manufacturing has recently gained attention as a result of its capacity to fabricate large-scale parts while preserving the mechanical properties of the feedstock material. However, the correlation between the quality of layer-by-layer bonding of the deposited metal and processing [...] Read more.
Solid-state Friction Stir Additive Manufacturing has recently gained attention as a result of its capacity to fabricate large-scale parts while preserving the mechanical properties of the feedstock material. However, the correlation between the quality of layer-by-layer bonding of the deposited metal and processing parameters has remained unknown. Neutron imaging techniques, with 90% total transmission per cm, are employed for Al6061 parts fabricated by MELD® Technology as a non-destructive evaluation approach for the first time to investigate the layer-by-layer structure of a stadium-shaped ingot in different sections. The post-processed results show the fabricated parts with an optimized set of processing parameters are void-free. However, the hydrocarbon-based feedstock lubricant segregates between the layers, which consequently may lead to non-uniform weaker mechanical properties along the build direction and stimulate crack initiation during mechanical loading. The tensile test results show 14% lower strain-to-failure values in alleged contaminated areas in transmission imaging results. Additionally, layer bonding is significantly impacted by hot-on-hot and hot-on-cold layer deposition schemes, especially for larger layer thicknesses. Full article
(This article belongs to the Special Issue Alloy Specific Considerations for Friction Stir Welding)
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