

McqMate
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. |
View all MCQs in
Engineering ChemistryNo comments yet