| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Processing and Performance of Materials Using Microwaves, Electric and Magnetic Fields, Ultrasound, Lasers, and Mechanical Work – Rustum Roy Symposium
|
| Presentation Title |
Characterization of AA7xxx Under Magnetic Field during Artificial Heat Treatment |
| Author(s) |
Kirk Lemmen, Damilola Alewi, Keaton Looper, Haluk Karaca, Paul Rottmann |
| On-Site Speaker (Planned) |
Kirk Lemmen |
| Abstract Scope |
Annealing under the influence of an external magnetic field is a novel processing technique for metal alloys to enhance the microstructure and material properties. For AA7xxx aluminum alloys, due to the different magnetic properties of the main solute atoms (e.g. Mg, Al, Cu, and Zn) of precipitate hardened aluminum alloys, heat treatments under the influence of a magnetic field can be used to enhance the kinematics of the precipitates. In this study it will be shown that applying a field as low as 1-Tesla accelerates the age hardening curves for both T6 (artificially aged) and T7 (over-aged) conditions in AA7xxx series. The effects of temperature and magnetic field on the precipitate sizes, shape, and distribution will be demonstrated. Potential avenues for using magnetic fields to tailor the microstructure and mechanical properties of aluminum alloys will be discussed. |