List four measures that may be taken to increase the resista

List four measures that may be taken to increase the resistance to fatigue of a metal alloy

Solution

Solution:
Four measures that may be taken to increase the resistance to fatigue of a metal alloy are:
(1) Polish the surface to remove stress amplification sites.
(2) Reduce the number of internal defects (pores, etc.) by means of altering processing and
fabrication techniques.
(3) Modify the design to eliminate notches and sudden contour changes.
(4) Harden the outer surface of the structure by case hardening (carburizing, nitriding) or shot
peening.