Exploitation of FAST/SPS to Recycle Surplus Titanium Alloy Particulates for Sustainable Solutions and near Net Shape Components

Abstract:

Field-assisted sintering technology also known as spark plasma sintering is starting to be recognised as a potential route for metals processing and near net shaping for a range of sectors. FAST/SPS is an effective way of rapidly consolidating powder and particulate feedstocks, including waste streams such as machining swarf into shaped billets with as-forged properties. FAST/SPS can also be used as an intermediate step prior to conventional closed die forging or hot rolling (FAST-forge and FAST-roll, respectively). The solid-state technique has also been demonstrated to be an effective way to functionally grade and diffusion bond different alloys in the same FAST billet (FAST-DB). In this paper, we summarize some of the developments at The University of Sheffield around FAST/SPS over the last few years, with examples from different particulate types for a range of different sectors.

• Periodical: Key Engineering Materials (Volume 1009)
• Pages: 41-48
• DOI: https://doi.org/10.4028/p-vIwD68
• Online since: March 2025
• Authors: Samuel Lister, Martin Jackson*
• Keywords: armour Plate, Ballistic Testing, Diffusion Bonding, FAST-Forge, FAST-Roll, Field-Assisted Sintering Technology, Machining Swarf/Chips, Recycling, Spark Plasma Sintering

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