The effect of the embrittlement on the fatigue limit and crack propagation in a duplex stainless steel during high cycle fatigue

Experimental characterization of short crack nucleation and growth during cycling in lean duplex stainless steels

“…8b). As others authors [9,15] have already found in DSS when pile-ups in the austenite are arrested at a grain boundary a zone of high localized stresses is produced generating a high dislocation density (Fig. 9).…”

Short fatigue crack propagation during low-cycle, high cycle and very-high-cycle fatigue of duplex steel – An unified approach

“…4c and d. To a less extent, microcracks can also nucleate on slip markings in the austenite and at a-a boundaries [21].…”

Analysis of VHCF damage in a duplex stainless steel using hard X-ray diffraction techniques

“…Although it is of common consensus that fatigue in the VHCF regime is dominated by crack initiation rather than crack growth, even for so-called run-out specimens traces of fatigue damage in the form of microcracks and/or slip band formation can be observed [4,5]. For the austenitic-ferritic duplex steel, slip band formation in the VHCF regime can be correlated with shear stress maxima deriving from stress concentrations due to elastic anisotropy and dislocation pile-ups [6].…”