Title: Ultrasonic hot powder compaction of Ti-6Al-4V 文章编号: 20170005 作者:
Author(s): Rezvan Abedini, Amir Abdullah, Yunes Alizadeh
关键词: Keywords: Powder densification; Ultrasonic vibration; Uniaxial hot pressing; Ti-6Al-4V 文献标识码: 中图分类号: EMAIL: 摘要: Abstract: 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. 页码: 640-647
