Deformation-induced microstructure and martensite effects on transgranular carbide precipitation in type 304 stainless steels

Influence of tensile pre-strain and sensitization on passive films in AISI 304 austenitic stainless steel

“…The 304 stainless steel not only accelerated sensitization at low temperature, but also promoted rapid healing (desensitization kinetics) due to strain-induced martensite [6]. Advani et al [13] have shown that both a 0 -martensite and carbide precipitates occur at shear band intersections. This is in agreement with our results.…”

Corrosion Testing of 304L SS 3013 Inner Container and Teardrop Samples

“…Transmission electron microscopy (TEM) work of Advani found that Cr x C y does not precipitate from martensite formed by cold working of 304 SS unless it is sensitized at 670 o C for 6-60 min. 4 De et al observed preferential corrosion of martensite in 302 SS produced by either cathodic charging of a thin foil with hydrogen or plastic deformation at -196 o C. 16 EPR results from the H5107 SRS/Hanford container are shown in Figure 19. The weld on the container lid and wall are more electrochemically active (higher current densities) than the base metal parts.…”

“…Plastic deformation can accelerate the development of grain boundary carbide precipitation and sensitization in 304 SS. 4 When stainless steel is heated above 300 o C in the heat affected zone of welds, heat tint forms around the weld zone. Factors affecting the heat tint include steel composition, time (temper colors, the color of the oxide upon heating of the metal, deepen with time), surface finish (rougher surfaces may oxidize at higher rates), and atmosphere (available oxygen).…”

Effect of thermal aging on IGC of cold worked Cr-Mn austenitic stainless steel

“…During cold working, with deformation bands and twins, intensive dislocations are also observed. Advani et al (1993) found that dislocation density was significant in 2 per cent deformed 304 SS sample by straining process but when straining increases 16 per cent, dislocation density also increases. Srinivas et al (2017) studied the effect of deformation on 316 SS and 304 SS and showed that t s decreases from 0 to 15 per cent CW and remained same or increases from 15 to 25 per cent CW.…”