Q158
Cyaniding is the process of
A.
Dipping steel in cyanide bath
B.
Reacting steel surface with cyanide salts
C.
Adding carbon and nitrogen by heat treatment of steel to increase its surface hardness
AnswerD.
Obtaining cyanide salts
Answer: Option C
Solution
Answer: Option C
Solution:
A process in which an iron-base alloy is heated in contact with a cyanide salt so that the surface absorbs carbon and nitrogen.Cyaniding is followed by quenching and tempering to produce a case with a desired combination of hardness and toughness.