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(Color online) Backscattered electron images of the untreated 316L (a) and NiTi (b) alloys. The line scan shown in the upper right inset in (b) confirms that the precipitates are the Ti-rich phase.
(Color online) Secondary electron images [(a) and (e)] and their corresponding backscattered electron images [(b) and (f)] of the 316L [(a) and (b)] and NiTi (e, f) samples treated for five pulses. The line scans show that the black spots are remnants of MnS (in 316L) and (in NiTi). (c) shows a typical laser three dimensional morphology on the five pulse treated 316L sample and a line scan of relative height which crosses three craters. (d) is a scanning electron microscopy (SEM) image showing the typical aspect of a crater viewed on cross section (surface of the 316L sample treated for five pulses).
(Color online) Evolutions of the density of (a) second phase inclusions and (b) craters on the surface of the 316L and NiTi samples as a function of the number of pulses.
(Color online) Potentiodynamic polarization curves of the 20 pulse treated and untreated samples for (a) the 316L steel and (b) the NiTi alloy.
Physical parameters of AISI 316L, MnS, NiTi, and .
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