Effect of high temperatures on material properties - Material Science

Q.  What is the effect of high temperatures on material properties?
- Published on 06 Aug 15

a. loss of cohesive strength
b. increase in stiffness
c. increase in hardness
d. All of the above

ANSWER: loss of cohesive strength


  • Sravanthi   -Posted on 07 Oct 15
    - Chromium-Molybdenum alloy steels are typical high temperature steels. These have carbon content below 0.2%.

    - If metals are subjected to high temperatures, they lose strength, their cohesive strength decreases, stiffness reduces and hardness decreases.

    - The materials used for high temperature application must possess the property of 'Red Hardness' or should be able to maintain it's hardness and strength at high temperatures.

    - Stainless steels are used for high temperature applications because they contain chromium as an alloying element. Chromium provides improved strength, oxidation and corrosion resistance.

Post your comment / Share knowledge

Enter the code shown above:
(Note: If you cannot read the numbers in the above image, reload the page to generate a new one.)