Question

A$)$ Deduce the type of failures $($either ductile or brittle$)$ for the metals in each image and justify your deduction. B$)$ Discuss how each failure can be monitored via a NDT method. C$)$ How can both types of failure be controlled in the future?

Question

Fatigue failure was the root cause of this metal gear failure A$)$ Use the image to confirm this root cause. B$)$ How can fatigue failure in this gear be controlled in the future?