- Author
-
Strobridge, T. R.
|
Moulder, J. C.
|
Clark, A. F.
- Title
- Titanium Combustion in Turbine Engines. Final Report.
- Coporate
- National Bureau of Standards, Washington, DC
- Sponsor
- Federal Aviation Administration, Washington, DC
- Report
-
NBSIR 79-1616; FAA-RD-79-51,
July 1979,
130 p.
- Distribution
- Available from National Technical Information Service
- Contract
- DOT-FABWAI-831
- Keywords
-
turbine engines
|
analytical studies
|
combustion
|
ignition
|
jet engines
|
metal combustion
|
oxidation
|
thermodynamics
|
titanium alloys
|
experiments
|
oxygen concentration
- Identifiers
- aircraft turbine engine; analytical models; compressor; dynamic combustion; metal oxidation; static combustion; titamium combustion
- Abstract
- Pure and alloyed titanium components are routinely used in aircraft turbine engines because of their uniquely high strength-to-weight ratios among structural metals, combined with excellent fatigue and corrosion resistance. Like most other metals, titanium is combustible under certain conditions of temperature, pressure and oxygen concentration and in fact there have been several instances of titanium combustion in service engines. Contemporary titanium use in aircraft turbine engines and the limits of that use are explored. Combustion incidents and their causes are discussed as well as the typical extent of damage. Current preventative measures are outlined. For better understanding, the fundamentals of metal combustion and the experimental research related to titanium combustion are thoroughly treated and analytical combustion models are presented. Finally, the relevant experimental combustion data are correlated as a function of static temperature and Reynolds number and compared to the model predictions.