The most effective inhibitor of grain growth, when added in small quantities is__________________?
A. carbon
B. vanadium
C. manganese
D. cobalt
E. copper
A. carbon
B. vanadium
C. manganese
D. cobalt
E. copper
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
A. below 723°C
B. 770 – 910°C
C. 910-1440°C
D. 1400-1539°C
E. above 1539°C
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
A. refine grain structure
B. reduce segregation in casting
C. improve mechanical properties
D. induce stresses-
E. relieve internal stresses
A. formation of bainite structure
B. carburised structure
C. martenistic structure
D. lamellar layers of carbide distributed throughout the structure
E. relieving of stresses throughout a component