A novel method for grain refinement and microstructure modification in TiAl alloy by ultrasonic vibration

作者: Chen Ruirun , Zheng Deshuang , Guo Jingjie , Ma Tengfei , Ding Hongsheng

DOI: 10.1016/J.MSEA.2015.12.001

关键词: MetallurgyGrain sizeSupercoolingNucleationMaterials scienceMicrostructureUltrasonic vibrationAlloyDendrite (crystal)Atmospheric temperature range

摘要: … Given the high melt viscosity and narrow liquid–solid temperature range, the predominant refinement mechanism of ultrasonic vibration for TiAl is the cavitation-enhanced nucleation …

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