Question

Tempering is a heat treatment process by which

• A. Hardness is Reduced and Toughness is Improved
• B. Hardness is Improved and Toughness is Reduced
• C. Toughness is Reduced and Hardness is Improved
• D. Toughness is Improved and Hardness is Improved

Hint:

Tempering is essential for reducing the brittleness of hardened steel while improving its toughness typically done after hardening

Answer 1

The Correct Option is A

Tempering is a heat treatment process that involves heating a material usually steel to a temperature below its critical point followed by cooling This process reduces the brittleness of the material increases its toughness and decreases hardness As a result tempering is commonly used to balance toughness and hardness improving the material’s ability to absorb energy without fracturing