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Meeting MS&T23: 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 Ultrasonic Vibration Acoustic Softening Effect on AISI 1018 Low-Carbon Steel
Author(s) Thomas Kang, Xun Liu
On-Site Speaker (Planned) Thomas Kang
Abstract Scope Ultrasonic vibration during plastic deformation reduces the flow stress of the material due to the acoustic softening effect. The drop in flow stress has been used to improve metal forming processes such as wire drawing, incremental sheet forming, and friction stir welding, however, the underlying physical principals are still not well understood. Acoustic softening is explained by the enhanced movement of dislocations and increased dislocation annihilation in literature. Studies have been conducted on various metals and yielded different results based on material systems, relative direction of deformation and ultrasonic vibration, as well as ultrasonic amplitude/frequency. In our study, the ultrasonic vibrations are applied parallel to the tensile axis on micro-dogbone samples to ensure uniform ultrasonic amplitude throughout the sample. Dependance of acoustic softening with varying ultrasonic vibration parameters are studied on AISI 1018 low-carbon steel.


Effects of Heat Treatment under External Magnetic Field on Microstructure and Mechanical Properties of Ferritic/Martensitic Steels
Effects on Aluminum Alloys During Heat Treatment in a Magnetic Field
High-speed Synchrotron X-ray Imaging of Microstructural Refinement Mechanisms During Ultrasonic Melt Processing in Metal Additive Manufacturing
Inhibition of Biofilm Formation on Glass Specimens when Subjected to AC Electromagnetic Fields of 20 kHz to 30 kHz
Microstructure Evolution and Property Enhancement of 3D-printed Graphene via Cold Rolling
Microwave Sintering for Lunar Base Construction
Microwave Synthesis of Cobalt Ferrite-reduced Graphene Oxide Composites
N-6: Improving Reliability of Ultrasonic Fatigue Testing through Comparative Analysis of Conventional and Ultrasonic Fatigue Tests on SS400 Material
N-7: Research on Green Laser Welding Process and Monitoring Technologies for Manufacturing Parts of Electric Vehicles
Post-processing of Irradiated FeCrAl by Electron Wind Force
Reviewing a Unified Phenomenological Comprehension on Non-thermal Effects in Microwave-assisted Materials Processing
The Role and Characterization of the Native Oxide Shell of Copper Metal Powder Spherical Particles During High Frequency Microwave Processing
Ultrasonic Vibration Acoustic Softening Effect on AISI 1018 Low-Carbon Steel

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