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- Unclassified, Unlimited, Publicly available.
- W-Hf-C/superalloy composites were found to be potentially useful for turbine blade applications on the basis of stress-rupture strength. The 100-and 1000-hour rupture strengths obtained for 70 volume percent fiber composites tested at 1090 C were 420 and 280 MN/sq m (61,000 and 41,000 psi). The investigation indicated that with better quality fibers, composites having 100- and 1000-hour rupture strengths of 570 and 370 MN/sq m (82,000 and 54,000 psi) may be obtained. Metallographic studies indicated sufficient fiber-matrix compatibility for long time applications at 1090 C for 1000 hours or more.
- NASA Technical Reports Server (NTRS) Collection.
- Document ID: 19740012042.
Accession ID: 74N20155.
Composite Reliability Conf.; 15-16 Apr. 1974; Las Vegas.
- No Copyright.
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