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.

Prasad said:   4 years ago
Well explained, Thanks everyone.

Biswajit said:   7 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.

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

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

Manikanta said:   8 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:   9 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:   10 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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