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Effects of impurities in coal-derived liquids on accelerated hot corrosion of superalloys
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Deadmore, D. L. Lowell, C. E. |
| Copyright Year | 1980 |
| Description | A Mach 0.3 burner rig was used to determine the effects of potential coal derived liquid fuel impurity combustion of products on hot corrosion in IN-100, IN-792, IN_738, U-700, Mar M-509, and 304 stainless steel. The impurities, added as aqueous solutions to the combustor, were salts of sodium, potassium, vanadium, molybdenum, tungsten, phosphorus, and lead. Extent of attack was determined by metal consumption and compared to the effects of sodium alone. Vanadium, molybdenum, tungsten, phosphorous, and lead in combination with sodium all resulted in increased attack as compared with sodium alone at some temperatures, apparently due in large part to the extension of the formation of liquid deposits. Varying the sodium-potassium ratio had little effect for ratios less than 1:3 for which reduced, but measurable, attack was observed. |
| File Size | 1256127 |
| Page Count | 31 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19800009892 |
| Archival Resource Key | ark:/13960/t24b7wc87 |
| Language | English |
| Publisher Date | 1980-03-01 |
| Access Restriction | Open |
| Subject Keyword | Metallic Materials Alkalies Fuel Contamination Heat Resistant Alloys High Temperature Tests Combustion Products Thermal Cycling Tests Coal Liquefaction Sodium Sulfates Fuel Corrosion 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 |
