Ultrasonic hot powder compaction of Ti-6Al-4V

作者：Abedini Rezvan; Abdullah Amir^*; Alizadeh Yunes

来源：Ultrasonics Sonochemistry, 2017, 37: 640-647.

DOI：10.1016/j.ultsonch.2017.02.012

• Powder densification
• Ultrasonic vibration
• Uniaxial hot pressing
• Ti-6Al-4V

Power ultrasonic has been recently employed in a wide variety of manufacturing processes among which ultrasonic assisted powder compaction is a promising powder materials processing technique with significant industrial applications. The products manufactured by the powder metallurgy commonly consist of residual porosities, material impurities, structural non-homogeneities and residual stress. In this paper, it is aimed to apply power ultrasonic to the hot consolidation process of Ti-6Al-4V titanium alloy powder in order to improve mechanical properties. To do this, the effects of ultrasonic power and process temperature and pressure were considered and then deeply studied through a series of experiments. It was shown that the addition of ultrasonic vibration leads to a significant improvement in the consolidation performance and the mechanical strength of the fabricated specimens.

• 出版日期2017-7