Utilizing Magnetic Field Annealing to Enhance the Microstructure and Mechanical Properties of 7075 Aluminum Alloy

Damilola Alewi, Kirk Lemmen, Haluk Karaca, Paul F. Rottmann

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This study explored the influence of magnetic fieldMagnetic field annealing in achieving enhanced mechanical propertiesMechanical properties in terms of yieldYield strength and microhardnessMicrohardness in 7075 aluminum alloyAluminum alloys. A custom-built 9 Tesla (T) superconducting magnetic system was employed during the agingAging of the samples at 120 °C without (0-T) and with (3-T) magnetic fieldMagnetic field to promote the precipitation and growth of strengthening phases. Mechanical propertiesMechanical properties measured with the aid of micromechanical tensile and Vickers hardnessHardness tests showed a 9% improved yieldYield strength and 12% increase in hardnessHardness with respect to increasing magnetic fieldMagnetic field strength to 3-T. The difference in the yieldYield strength for the 0-T and 3-T samples was then explained with yieldYield strength calculation models. This work thus reveals that applying magnetic fieldMagnetic field during the agingAging of 7xxx aluminum alloysAluminum alloys can help tailor and enhance the hardnessHardness and tensile properties of this alloyAlloys.

Original languageEnglish
Title of host publicationLight Metals 2024
EditorsSamuel Wagstaff
Pages185-190
Number of pages6
DOIs
StatePublished - 2024
EventLight Metals Symposium held at the TMS Annual Meeting and Exhibition, 2024 - Orlando, United States
Duration: Mar 3 2024Mar 7 2024

Publication series

NameMinerals, Metals and Materials Series
ISSN (Print)2367-1181
ISSN (Electronic)2367-1696

Conference

ConferenceLight Metals Symposium held at the TMS Annual Meeting and Exhibition, 2024
Country/TerritoryUnited States
CityOrlando
Period3/3/243/7/24

Bibliographical note

Publisher Copyright:
© The Minerals, Metals & Materials Society 2024.

Funding

This work was funded by the National Science Foundation under GOALI grant number CMMI-1634495. The authors would like to thank Priya Pathare and James Griego of Sandia National Laboratories in Albuquerque, NM for their assistance and facility accommodation during this study. Supported by the Laboratory Directed Research and Development Program at Sandia National Laboratories, a multimission laboratory managed and operated by National Technology and Engineering Solutions of Sandia LLC, a wholly-owned subsidiary of Honeywell International Inc. for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-NA00 03525. The views expressed in the article do not necessarily represent the views of the U.S. DOE or the United States Government.

FundersFunder number
National Science Foundation (NSF)CMMI-1634495
Michigan State University-U.S. Department of Energy (MSU-DOE) Plant Research Laboratory
National Nuclear Security AdministrationDE-NA00 03525
Sandia National Laboratory
Laboratory Directed Research and Development

    Keywords

    • Aluminum 7075 alloy
    • Hardness
    • Magnetic field
    • Mechanical properties
    • Small scale mechanical testing

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Energy Engineering and Power Technology
    • Mechanics of Materials
    • Metals and Alloys
    • Materials Chemistry

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