Mechanical Engineering - Engineering Materials - Discussion

Discussion Forum : Engineering Materials - Section 1 (Q.No. 38)
38.
The heat treatment process used for softening hardened steel is
carburising
normalising
annealing
tempering
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
34 comments Page 2 of 4.

TAI said:   2 years ago
Annealing is the right answer.

Biswajit said:   6 years ago
So annealing is the process to improve ductility, relieve the residual stresses H annealing < H tempering so we can say that annealing process is the softening process by which we can achieve more ductile material than tempering.

Sriraj said:   8 years ago
Answer is correct.

Annealing is used to relieve stress caused by rolling, extruding etc.

Though the final product is ductile and soft, it is not used for hardened steels.

Tempering is used to increase toughness of hardened steel. So the final product from tempering is soft and tough steel.

Abhi said:   7 years ago
Since the question says hardened steel, so the answer is tempering.

Manikanta said:   7 years ago
Tempering is done to reduce the residual stress. Cyniding is the hardening process which increases surface hardness to great extent.

Pradeep Reddy said:   8 years ago
Tempering is the Right answer.

Balu said:   8 years ago
Tempering is usually performed after hardening, to reduce some of the excess hardness, and is done by heating the metal to some temperature below the critical point for a certain period of time, then allowing it to cool in still air.

So it is right answer.

Ganapathi said:   9 years ago
Annealing is a process of softening the steel.

Yuvaraj kumar said:   1 decade ago
Tempering means generally atoms are close together its like tightening hence its increase hardness of steel.

Sagar said:   1 decade ago
Tempering is a process in which hardened steel (Martensite) is transformed into soft steel with increase in toughness.


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