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Dimensional stability of Ti--6Al--6V--2Sn

Technical Report ·
DOI:https://doi.org/10.2172/6936337· OSTI ID:6936337

The dimensional stability of Ti-6Al-6V-2Sn has been examined. It is shown that in the duplex annealed condition Ti-6Al-6V-2Sn is dimensionally stable at temperatures up to 448/sup 0/K for 512 hrs. Solution treated Ti-6Al-6V-2Sn undergoes large dimensional changes during both initial aging between 673 and 973/sup 0/K and subsequent exposure to low temperatures (< or = to 448/sup 0/K). These results indicate that if close dimensional tolerances must be maintained, duplex annealed Ti-6Al-6V-2Sn should be selected. Selection of treated and aged Ti-6Al-6V-2Sn should only be considered if accompanied by full scale environmental testing.

Research Organization:
Sandia Labs., Albuquerque, NM (USA)
DOE Contract Number:
EY-76-C-04-0789
OSTI ID:
6936337
Report Number(s):
SAND-78-0453
Country of Publication:
United States
Language:
English