Transactions of FAMENA, Vol. 48 No. 4, 2024.
Original scientific paper
https://doi.org/10.21278/TOF.484061523
The Effect of Ultrasound on the Longitudinal Section of a 2A14 Aluminium Alloy Ingot with a Diameter of 830 mm
Sichao Su
; College of Mechanical Engineering, Hunan University of Arts and Sciences, Changde, China
*
Ruiqing Li
; National Key Laboratory of High Performance Complex Manufacturing, School of Mechanical and Electrical Engineering & Light Alloy Research Institute, Central South University, Changsha, China
Yi Zhou
; College of Mechanical Engineering, Hunan University of Arts and Sciences, Changde, China
* Corresponding author.
Abstract
In the casting experiment of a 2A14 aluminium alloy ingot with a diameter of 830 mm, a comparison was made between the method when ultrasonic treatment was applied and the method when ultrasonic treatment was not applied. In the ingot which was not subjected to the ultrasonic treatment, the segregation rates of Cu and Si elements on a 1/2 longitudinal section were 29.98% and 27.96%, respectively. The average tensile strength, average yield strength and average elongation were 169.50 MPa, 87.17 MPa, and 5.32%, respectively. In the case of the ultrasonically treated ingot, the segregation rates of Cu and Si elements were 28.15% and 21.51%, respectively, and the average tensile strength, average yield strength and average elongation were 178.38 MPa, 92.75 MPa and 7.10%, respectively. The average tensile strength, average yield strength and average elongation of the ultrasonically treated ingot were increased by 5.24%, 6.40% and 33.46%, respectively. The results showed that after the ultrasonic treatment, the macro-segregation was inhibited, the defects were reduced, and the eutectic structure was more uniform.
Keywords
ultrasonic treatment; macro-segregation; eutectic structure
Hrčak ID:
321521
URI
Publication date:
20.10.2024.
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