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Title: The preparation of titanium alloys and composites via non melt processing
Author: Tricker, David
Awarding Body: Imperial College London
Current Institution: Imperial College London
Date of Award: 2008
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The consolidation of affordable titanium (Ti) powder is essential for the fabrication of titanium components to reduce production costs. This thesis investigates the consolidation of titanium powder by non-melt processing routes. An in-house canning and degassing procedure has been developed and employed for the encapsulation of Ti hydride-dehydride (HDH) powder for downstream processing. Degassing trials were conducted to determine the optimum degassing temperature of Ti HDH powder and cans of Ti HDH powder were extruded and analysed to prove consolidation. Compacts of Ti HDH powder were manufactured and extruded with different reduction ratios and a finite element (FE) model has been developed to predict the extrusion pressure and exit temperatures. The thermomechanical processing of Ti-6AI-4V + 20 vol.\% TiB composite manufactured via a non-melt processing route has been established, with the formation of the reinforcement phase via an in-situ reaction.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available