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
Discussion:
34 comments Page 2 of 4.
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.
SUBASH said:
6 years ago
Answer is anneling.
(1)
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.
So it is right answer.
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.
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.
Sai kiran said:
8 years ago
What is the correct answer? Please explain.
Avinash Kumar said:
9 years ago
Hardened steels here refer to martensitic steels, so tempering is the correct method of softening them i.e. improving the ductility by small amounts while reducing hardness and tensile strength by small amounts.
Saviour ditta said:
9 years ago
The correct answer is annealing.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers