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Asked: 2021-03-06T01:53:17+05:30 In:

GATE MT 2021 Q5. Singles crystal turbine blades of nickel-based superalloys for aero-engines are manufactured using:

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22.12%(A) Investment casting ( 50 voters )
7.96%(B) Die casting ( 18 voters )
5.75%(C) Squeeze casting ( 13 voters )
64.16%(D) Directional solidification ( 145 voters )
Based On 226 Votes

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GATE MT 2021 Q5. Singles crystal turbine blades of nickel-based superalloys for aero-engines are manufactured using:
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    1. Copper Student

      Answer:- Option D Single crystal turbine blades of nickel-based superalloys for aero engines are generally manufactured using DIRECTIONAL SOLIDIFICATION TECHNIQUE whereby the final component comprises only a single grain. The absence of grain boundaries in single crystal superalloys provides for supRead more

      Answer:- Option D

      Single crystal turbine blades of nickel-based superalloys for aero engines are generally manufactured using DIRECTIONAL SOLIDIFICATION TECHNIQUE whereby the final component comprises only a single grain. The absence of grain boundaries in single crystal superalloys provides for superior creep and thermal fatigue resistance compared to polycrystalline alloys.

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