@article { , title = {A high-speed imaging and modeling study of dendrite fragmentation caused by ultrasonic cavitation}, abstract = {The dynamic behavior of ultrasound-induced cavitation bubbles and their effect on the fragmentation of dendritic grains of a solidifying succinonitrile 1 wt pct camphor organic transparent alloy have been studied experimentally using high-speed digital imaging and complementary numerical analysis of sound wave propagation, cavitation dynamics, and the velocity field in the vicinity of an imploding cavitation bubble. Real-time imaging and analysis revealed that the violent implosion of bubbles created local shock waves that could shatter dendrites nearby into small pieces in a few tens of milliseconds. These catastrophic events were effective in breaking up growing dendritic grains and creating abundant fragmented crystals that may act as embryonic grains; therefore, these events play an important role in grain refinement of metallurgical alloys.}, doi = {10.1007/s11661-012-1188-3}, eissn = {1543-1940}, issn = {1073-5623}, issue = {10}, journal = {Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science}, note = {Batch 008. Output ID 43929.}, pages = {3755-3766}, publicationstatus = {Published}, publisher = {Springer Publishing Company}, url = {https://hull-repository.worktribe.com/output/417749}, volume = {43}, keyword = {Advanced Material and Acoustics, Specialist Research - Other, Mechanics of Materials, Condensed Matter Physics, Metals and Alloys}, year = {2012}, author = {Shu, Da and Sun, Baode and Mi, Jiawei and Grant, Patrick S.} }