Criteria of Grain Refinement Induced by Ultrasonic Melt Treatment of Aluminum Alloys Containing Zr and Ti
By T. V. Atamanenko, D. Eskin, L. Zhang, L. Katgerman. 2010
243 citations recorded by the source corpus.
It is well known that ultrasonic melt treatment (UST) promotes grain refinement in aluminum alloys. Cavitation-aided grain refinement has been studied for many years; however, it is still not being applied commercially. The current article summarizes the results of experimental work performed on various alloying systems at different stages of solidification. The influence of UST parameters and solidification conditions on the final grain structure is analyzed. It was found that small additions of zirconium and titanium can significantly increase the efficiency of UST, under the stipulation that grain refinement is performed in the temperature range of primary solidification of Al3Zr. The possible mechanisms for this effect are discussed.
View Paper: https://www.semanticscholar.org/paper/155a1bf3ef6d1d6a49d443f58aa94354eca45677
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Citations in the corpus
- Ultrafast synchrotron X-ray imaging studies of microstructure fragmentation in solidification under ultrasound (2018, background): “Previous investigations on the ultrasonic treatment (UST) of metallic alloys have shown that refined, equiaxed grain structures can be produced, thereby, improving the mechanical properties such as yield strength and fracture toughness [3,12,17,19].”
- A synchrotron X-radiography study of the fragmentation and refinement of primary intermetallic particles in an Al-35Cu alloy induced by ultrasonic melt processing (2017, unknown): “The other cavitation-enhanced nucleation mechanism [3,5] suggests that the formation, growth and implosive collapse of cavitation bubbles produces a high-energy shockwave or liquid jet flow near impurity particles.”
- Grain refinement of stainless steel in ultrasound-assisted additive manufacturing (2020, background): “conditions, including ultrasonic [17, 35, 36] and AM [37-39] conditions.”