The following property is most important for material used for gas turbine blade
A. Toughness
B. Fatigue
C. Creep
D. Corrosion resistance
Answer: Option C
Solution(By Examveda Team)
In the context of gas turbine blades, the most important property among the given options isCreep
. Creep is a time-dependent deformation that occurs under constant load and elevated temperatures. Gas turbine blades operate in high-temperature environments and are subjected to significant mechanical and thermal stresses.Explanation for each option:
Toughness
: While toughness is important for impact resistance, it is not as critical as creep in the high-temperature and constant-load conditions experienced by gas turbine blades.Fatigue
: Fatigue is relevant for cyclic loading, but the continuous and high-temperature operation of gas turbine blades makes creep a more crucial consideration.Creep
: Creep resistance is crucial as gas turbine blades are exposed to prolonged high temperatures and constant loads during operation.Corrosion resistance
: While corrosion resistance is important for durability, it is not the primary concern when compared to the high-temperature creep behavior.Therefore, in the context of the question, the most important property for a material used for gas turbine blades is Creep.
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Turbine is made of single crystal & in creep grain is stronger