SEM micrograph using backscattered electrons showing fatigue slip lines
on the surface of a polished AISI 304 steel after 1000 cycles (with stress
amplitude 320 MPa).
SEM micrograph showing a shot-peened surface of normalized plain carbon
steel SAE 1045.
Light microscopic micrograph showing the crack tip of bimodal Ti-6Al-4V and the plastic zone at the begining of a KIC-test.
Courtesy of Dr. Igor Altenberger
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