The addition of an interstitial element to a metal ________ the overall hardness and strength while ________ the ductility.
A)decreases, increasing
B)increases, increasing
C)increases, decreasing
D)decreases, decreasing
E)Adding an interstitial element to a metal has no affect on its properties.

Question

Quizplus · Accepted Answer

Adding an interstitial element to a metal increases the overall hardness and strength by interrupting the regular arrangement of metal atoms, but it also decreases the ductility by hindering the movement of dislocations.

The Addition of an Interstitial Element to a Metal ________