Mechanical Engineering - Engineering Materials - Discussion
Discussion Forum : Engineering Materials - Section 2 (Q.No. 2)
2.
The hardness of steel depends upon the
Discussion:
32 comments Page 2 of 4.
Reuben George said:
7 years ago
According to me, the hardness of steel depends on carbon content.
Shivaprasad said:
7 years ago
Amount of cementite it contains imparts of hardness. I think correct answer is A.
Mech said:
7 years ago
(b) is the correct answer because in question steel is give and for steel it is carbon. But for cast iron cementite is used.
Santosha said:
7 years ago
I think it depends on shape and distribution of carbides in iron.
J gani said:
7 years ago
Carbon up to 0.6% it will increase the hardness, then it depends upon cemented content in the metal, answer is cementite.
Gaurav said:
8 years ago
Amount of carbon can't decide hardness of steel because if it is in free form (graphite) it will impart softness.
Prabhu said:
1 decade ago
I think it is amount of carbon content. How you can say opt: A Please explain?
Sathia said:
8 years ago
If the question were to ask regarding hardness of iron in general, then the presence of carbon induces propotional hardness, but in this case for steel carbon is in dissolved form (cementite) so, for steel amount of cementite affects the hardness.
Amarjeet Kumar mehra said:
8 years ago
I think it is the amount of cementite.
Ankitha said:
8 years ago
I think the amount of cementite defines hardness.
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