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In the present research, the effects of the addition of Ti powders on the microstructure, especially the morphology and size of α-Al crystals and the mechanical properties of A356 alloy were studied. The experimental process involved that 1.5wt.% and 3.0wt.% of Ti powders were added into the molten A356 alloy at 780°C, respectively. In the meantime, high-intensity ultrasonic vibration was introduced...
A developed approach for fabricating in situ Al3Ti/Al composites via ultrasound assisted direct reaction between solid Ti powers and liquid Al at 780°C was proposed in this research. In situ formed Al3Ti particles were blocky in morphology, and the size of most Al3Ti particles was in the range of 2–7μm. The effects of ultrasonic vibration on the microstructure and fabricating process of in situ Al...
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