Q.

Which of the following groups of alloying elements stabilize austenite?

A. ni, mn, cu, and co
B. cr, w, mo, v, and si
C. cr, w, ti, mo, nb, v, and mn
D. co, al, and ni
Answer» A. ni, mn, cu, and co
Explanation: the alloying elements such as ni, mn, cu, and co have a tendency to alleviate austenite, whereas cr, w, mo, v, and si tend to stabilize ferrites. alloying elements such as cr, w, ti, mo, nb, v, and mn tend to form carbides. other elements like co, al, and ni help to weaken carbides and thereby form graphite.
2.6k
0
Do you find this helpful?
7

View all MCQs in

Engineering Chemistry

Discussion

No comments yet