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Designing Gamma Tial Alloys (K5 Based) for Use at 840 C and Above
| AUTHOR | Nasa, National Aeronautics and Space Adm |
| PUBLISHER | Independently Published (09/19/2018) |
| PRODUCT TYPE | Paperback (Paperback) |
Description
The objective of this program was to investigate how carbon additions and Al content variation affects RT tensile properties and creep performance in gamma TiAl alloys. On the basis of the results from the work four alloys were selected within the composition range of Ti-(44.7-47.0) Al-(1.0-1.7)Cr-3.0Nb-0.2W-0.2B-(0.23-0.43)C-(0, 0.2)Si. Through extensive annealing/aging experiments, detailed observations of microstructure evolution, property measurements and analyses, comprehensive understanding was made in the carbide formation process. It was found that creep properties depend on the distribution of carbide particles, which is controlled not only by the aging process but also the amount ratio fo Al and carbon. From the results and analysis, new creep-resistant alloy compositions are suggested for further development.Kim, Young-Won and Kim, Sang-LanGlenn Research CenterCARBON; TENSILE PROPERTIES; CREEP STRENGTH; MICROSTRUCTURE; CREEP PROPERTIES; ANNEALING...
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Product Details
ISBN-13:
9781723825828
ISBN-10:
1723825824
Binding:
Paperback or Softback (Trade Paperback (Us))
Content Language:
English
More Product Details
Page Count:
70
Carton Quantity:
58
Product Dimensions:
8.50 x 0.14 x 11.02 inches
Weight:
0.41 pound(s)
Country of Origin:
US
Subject Information
BISAC Categories
Science | Space Science - General
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The objective of this program was to investigate how carbon additions and Al content variation affects RT tensile properties and creep performance in gamma TiAl alloys. On the basis of the results from the work four alloys were selected within the composition range of Ti-(44.7-47.0) Al-(1.0-1.7)Cr-3.0Nb-0.2W-0.2B-(0.23-0.43)C-(0, 0.2)Si. Through extensive annealing/aging experiments, detailed observations of microstructure evolution, property measurements and analyses, comprehensive understanding was made in the carbide formation process. It was found that creep properties depend on the distribution of carbide particles, which is controlled not only by the aging process but also the amount ratio fo Al and carbon. From the results and analysis, new creep-resistant alloy compositions are suggested for further development.Kim, Young-Won and Kim, Sang-LanGlenn Research CenterCARBON; TENSILE PROPERTIES; CREEP STRENGTH; MICROSTRUCTURE; CREEP PROPERTIES; ANNEALING...
Show More