EFFECT OF HIGH-INTENSITY ULTRASONIC TREATMENT ON REFINEMENT OF Al-5Cu ALLOY INGOTS

  • Zheng Jia College of Mechanical Engineering, Shenyang University, Shenyang 110044, China
  • Zhi Zhuo Wang College of Mechanical Engineering, Shenyang University, Shenyang 110044, China
  • Li Fu College of Mechanical Engineering, Shenyang University, Shenyang 110044, China
Keywords: high-intensity ultrasonic treatment, Al-5Cu alloy ingots, grain refinement, porosities of ingot

Abstract

The effect of high-intensity ultrasonic treatment combined with bottom cooling treatment on the refinement of Al-5Cu alloy ingots was studied. The results show that ultrasonic treatment combined with forced cooling at the bottom of ingots has a good refining effect, and the best refining effect can be obtained at 2000 W and after 120 s. The cross-section of an ingot exhibits almost 100 % refined equiaxed grains and no porosity. The method of combining ultrasonic treatment and forced cooling at the bottom of ingots not only influences the ingot refinement, but also decreases the porosity of the ingots with an increase in the ultrasonic duration. The ultrasonic degassing effect is due to the release of hydrogen in biofilms, which expand and grow gradually; finally, they burst on the melt surface, achieving the effect of degassing.

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Published
2024-04-03
How to Cite
1.
Jia Z, Wang ZZ, Fu L. EFFECT OF HIGH-INTENSITY ULTRASONIC TREATMENT ON REFINEMENT OF Al-5Cu ALLOY INGOTS. MatTech [Internet]. 2024Apr.3 [cited 2024May18];58(2):185–192. Available from: https://mater-tehnol.si/index.php/MatTech/article/view/1038