Effects of Hydrogen Environments on Columbium and Tantalum Alloys.
Abstract
The effect of water vapor/hydrogen environments on the mechanical properties of tantalum and the tantalum-10 weight percent tungsten alloy (Ta-10W) was determined by conducting tensile tests in these environments at 1-atmosphere pressure and temperatures from 400 to 1500 F. The test conditions were chosen to simulate, except for pressure, those conditions to which materials would be exposed in hydrogen-oxygen-fueled rocket or ramjet thrust chambers. Two H2O/H2 mixture ratios, with nominal values of 3 and 1, corresponding to the two limits currently used in hydrogen/oxygen engine operation, were employed during these tests. These mixture ratios are on a volume basis and correspond, respectively, to oxygen/hydrogen weight ratios of approximately 6 and 4. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1968
- Accession Number
- AD0846068
Entities
People
- G. Bentle
- W. T. Chandler