Effect of Ultrasonic Treatment and Squeeze Casting on the Microstructural Refinement of Al–Cu–Mn Alloys

High integrity cast aluminum components require the use of molten metal processing technologies prior to casting. These include processes such as degassing to reduce porosity, filtration to reduce inclusion content, addition of grain refiners to refine the grain structure, and the addition of chemical modifiers to alter the morphology of eutectic phases. Ultrasonic treatment (UST) is a novel processing method through which ultrasonic energy is introduced into molten metal for the purpose of degassing as well as modifying the cast microstructure. To optimize the use and applications of UST, it is necessary to examine the fundamental mechanisms and the limiting values of controlling parameters. The effectiveness of UST to perform a desired application within a molten metal is highly dependent on temperature, volume of liquid metal, and the state of the frequency in use. The mechanisms of ultrasonic energy imparted within molten metal will be discussed as well as the benefits of UST during molten metal processing.

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Effect of Ultrasonic Treatment and Squeeze Casting on the Microstructural Refinement of Al–Cu–Mn Alloys

Cited by 4 publications

References 43 publications

Effect of Low-Intensity Ultrasound on the Temperature Field and Microstructure of 2219 Aluminum Alloy

Effect of Low-Intensity Ultrasound on the Temperature Field and Microstructure of 2219 Aluminum Alloy

Microstructure Evolution and Strengthening Mechanisms of Cast Al–Cu–Mn Alloy via Ti–Zr-Synergistic Micro-alloying

Fundamentals of Ultrasonic Treatment of Aluminum Alloys

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