Ultrasound Induced a More Homogeneous Distribution of TiB_2 Particles in Al Matrix During Solidification
Ultrasound Induced a More Homogeneous Distribution of TiB_2 Particles in Al Matrix During Solidification
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DOI：
10.1007/s11663-023-02798-1
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发表时间：
2023-04
期刊：
影响因子：
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通讯作者：
Zhiwei Liu;Zhifei Hao;Bin Tan;M. Chen
中科院分区：
文献类型：
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作者：
Zhiwei Liu;Zhifei Hao;Bin Tan;M. Chen
利用超声辅助凝固技术改善了TiB2颗粒在Al基体中的分布。结果表明：超声能产生局部过冷、加速传热传质和引发熔体流动等作用，避免TiB2颗粒的沉积，促进α-Al晶粒在TiB2颗粒上的形核，并通过生长界面促进TiB2颗粒的吞噬，从而使更多的TiB2颗粒分布在晶粒内。
An ultrasound-assisted solidification is utilized to improve the distribution of TiB2particles in Al matrix. Results show that ultrasound generates the effects of local undercooling, accelerating heat and mass transfer and initiating the melt flow which are able to avoid the deposition of TiB2particles, and further make more TiB2particles distribute within grains by improving the nucleation of α-Al grains on TiB2particles and promoting the engulfment of TiB2particles by growing interface.