Question

Which of the following is/are the adequate high-temperature mechanical properties to avoid fracture?

(a) Low creep rate and high stress-rupture strength

(b) High stress-rupture strength, low creep rate, and high fracture toughness

(c) High stress-rupture strength and high fracture toughness

(d) Low creep rate and high fracture toughness

The question was posed to me in an online quiz.

This interesting question is from High Temperature Materials in division High Temperature Corrosion of Corrosion Engineering

Answer 1

Correct answer is (b) High stress-rupture strength, low creep rate, and high fracture toughness

To elaborate: Low creep rate, high stress-rupture strength, and high fracture toughness are the adequate high-temperature mechanical properties to avoid fracture.