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A statistical analysis of elevated temperature gravimetric cyclic oxidation data of 36 ni- and co-base superalloys based on an oxidation attack parameter
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Barrett, Charles A. |
| Copyright Year | 1992 |
| Description | A large body of high temperature cyclic oxidation data generated from tests at NASA Lewis Research Center involving gravimetric/time values for 36 Ni- and Co-base superalloys was reduced to a single attack parameter, K(sub a), for each run. This K(sub a) value was used to rank the cyclic oxidation resistance of each alloy at 1000, 1100, and 1150 C. These K(sub a) values were also used to derive an estimating equation using multiple linear regression involving log(sub 10)K(sub a) as a function of alloy chemistry and test temperature. This estimating equation has a high degree of fit and could be used to predict cyclic oxidation behavior for similar alloys and to design an optimum high strength Ni-base superalloy with maximum high temperature cyclic oxidation resistance. The critical alloy elements found to be beneficial were Al, Cr, and Ta. |
| File Size | 1842334 |
| Page Count | 50 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19930008880 |
| Archival Resource Key | ark:/13960/t49p7zn1t |
| Language | English |
| Publisher Date | 1992-12-01 |
| Access Restriction | Open |
| Subject Keyword | Metallic Materials Oxidation Resistance Nickel Alloys Corrosion Heat Resistant Alloys Estimating Oxidation Regression Analysis High Temperature Cobalt Alloys Thermal Degradation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
