A reversible change in the atomic structure of the steel with a corresponding change in the properties is known as_________________?
A. allotropic change
B. recrystallisation
C. heat treatment
D. precipitation
E. austempering
A. allotropic change
B. recrystallisation
C. heat treatment
D. precipitation
E. austempering
[B].
Answer: Option A
Explanation:
No answer description available for this question.
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
A. it easily machinable
B. it brittle
C. it hard
D. the casting unsound
E. increases the fluidity
A. providing corrosion resistance
B. improving machining properties
C. providing high strength at elevated temperatures
D. raising the elastic limit
E. improving the resilience and ductility
A. low carbon steel
B. medium carbon steel
C. high carbon steel
D. alloy steel
E. special steel
A. sulphur, lead, phosphorous
B. silicon, aluminium, titanium
C. vanadium, aluminium
D. chromium, nickel
E. lubricants