1. Improve the Forming Ability of Al-Based Metallic Glass Under Ultrasonic Vibration at Room Temperature
- Author
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Hongyan Shi, Shuai Ren, Xiong Liang, Zehang Liu, Wenqing Ruan, Caitao Fan, Zhenxuan Zhang, and Jianan Fu
- Subjects
ultrasonic vibration ,Diffraction ,Technology ,Work (thermodynamics) ,transmission electron microscope ,Materials science ,Amorphous metal ,Materials Science (miscellaneous) ,Plasticity ,Forming ability ,Condensed Matter::Soft Condensed Matter ,Brittleness ,al-based metallic glass ,Transmission electron microscopy ,room temperature deformation ,Deformation (engineering) ,Composite material ,Supercooling - Abstract
In this work, a rapid and controllable ultrasonic vibration method for forming Al-based metallic glass at room temperature is proposed. This method can dramatically improve the forming ability of Al-based metallic glasses, which are virtually brittle at room temperature and have almost no supercooled liquid region at high temperatures. Under ultrasonic vibration, Al-based metallic glasses exhibited obvious plastic flow, with a maximum deformation degree up to 58% and an average deformation degree up to 43%. It is worth mentioning that no crystalline peaks were found on the X-ray diffraction patterns after deformation under ultrasonic vibration, and the mechanical properties remained the same as the primary sample. The present results provide a new approach for the deformation and forming of Al-based metallic glasses, which can significantly broaden their applications.
- Published
- 2021