Mach 1 oxidation of thoriated nickel chromium at 1204 C (2200 F).
- Author:
- Lowell, C. E.
- Published:
- Nov 1, 1971.
- Physical Description:
- 1 electronic document
- Additional Creators:
- Sanders, W. A.
- Access Online:
- hdl.handle.net
- Restrictions on Access:
- Unclassified, Unlimited, Publicly available.
- Summary:
- TD NiCr was exposed to a Mach 1, 1-atmosphere gas stream at 1204 C for times up to 50 hours. Weight change, metal thickness loss, X-ray diffraction, metallographic, and electron microprobe analyses were made. Neither surface preparation nor thermal cycling had an appreciable effect on the results. Initially, Cr2O3 formed and volatilized, allowing a rapid metal loss rate of 40 microns per hour. After about 1 hour the Cr2O3 broke down, resulting in an NiO overgrowth. The metal loss rate then slowed to 2.5 microns per hour and remained constant to 50 hours.
- Collection:
- NASA Technical Reports Server (NTRS) Collection.
- Note:
- Document ID: 19720004816.
Accession ID: 72N12465.
E-6488.
NASA-TN-D-6562. - Terms of Use and Reproduction:
- No Copyright.
- Access Online:
- hdl.handle.net
View MARC record | catkey: 15948049