Question 1

one of the following cooling rate used for normalizing process

Accepted Answer

The normalizing process typically involves air cooling as the method to cool down the metal after it has been heated to a specific temperature.

Question 2

Which heat treatment process is carried out after hardening process

Accepted Answer

Tempering is performed after hardening to reduce brittleness and relieve internal stresses while maintaining hardness.

Question 3

one of the following is main purpose of Normalizing

Accepted Answer

Normalizing is a heat treatment process that aims to achieve several metallurgical improvements in metals, including improving machinability, modifying and refining the grain structure, and homogenizing the microstructure. Therefore, all of the options listed are main purposes of normalizing.

Question 4

CCR is a minimum cooling rate of steel, by which we get 100% ------phase

Accepted Answer

CCR (Critical Cooling Rate) is the minimum rate at which steel must be cooled to form 100% martensite, a very hard and brittle phase. Cooling slower than the CCR will result in the formation of other microstructures like pearlite or bainite.

Question 5

One of the following is type of tempering heat treatment

Accepted Answer

Tempering heat treatment can be classified based on the temperature range used into low temperature tempering, medium temperature tempering, and high temperature tempering. Each type serves different purposes in altering the properties of the metal, such as improving toughness, reducing brittleness, or achieving a desired hardness.

Quiz 2: Heat Treatment Processes and Transformation Products of Austenite

one of the following cooling rate used for normalizing process

Which heat treatment process is carried out after hardening process

one of the following is main purpose of Normalizing

CCR is a minimum cooling rate of steel, by which we get 100% ------phase

One of the following is type of tempering heat treatment