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Which of the following strengthening mechanisms is/are used to attain high-temperature strength?

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Which of the following strengthening mechanisms is/are used to attain high-temperature strength?

(a) Solid-solution strengthening

(b) Precipitation hardening

(c) Dispersion hardening

(d) Solid-solution strengthening, precipitation hardening or dispersion hardening

The question was asked during an internship interview.

Question is taken from High Temperature Materials topic in division High Temperature Corrosion of Corrosion Engineering

1 Answer

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Right choice is (d) Solid-solution strengthening, precipitation hardening or dispersion hardening

For explanation: Strengthening mechanism that is used to attain high-temperature strength are:

i. Solid-solution strengthening

ii. Precipitation hardening

iii. Dispersion hardening.

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