B Project B1: Hydrogenated Ti powder pre-forms
Project Leader: Dr. Matthew Barnett - Deakin University
Staff/students
The basic idea at the core of the present work is to introduce into, or leave in, hydrogen during the early stages of processing. Once a compact product is attained a final pre-treatment is employed during which time hydrogen is removed and the final properties are established.  
Lapovok, Rimma
Tomus, Dacian
Bhattacharjee, Pinaki
Ghaderi, Alireza
Barnett, Matthew
Kumar, Sree
Nave, M
Gunasheker, Umashankar
It is proposed to carry out a Proof of Concept project that establishes, for the two most common Ti alloys (CP-Ti and Ti-6Al-4V):
1. The degree to which hydrogen influences the development of the ductility of the green product during thermal pre-treatment.
2. The extent to which hydrogen improves ductility during strain compaction.
3. The degree to which hydrogen improves properties of annealed compacts.
4. The nature of the processing constraints imposed by the need to remove hydrogen and the need to keep times low (to be carried out by CSIRO).
5. The optimal level of hydrogen for productivity and cost taking all of the above into account - minimising compaction temperature and maximising properties.
The methodology to be employed involves the assessment of each of the first four of these issues in isolation. Once this is accomplished an optimum configuration will be identified and this will be studied in order to assess the last of the above objectives.
In parallel with this work, study will be conducted into the mechanisms by which H influences the deformation behaviour of titanium.