Investigation of crystal growth mechanism during selective laser melting and mechanical property characterization of 316L stainless steel parts

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Microstructure and mechanical properties of 316L austenitic stainless steel processed by different SLM devices (2020, background): “This behavior is attributed to epitaxial growth of the grains [27]: the grains orient themselves during solidification according to the orientation of the solid nucleus surface (surface of the previously applied layer), which is the energetically favored surface for crystallization [28].”
Fatigue and fracture behaviour of laser powder bed fusion stainless steel 316L: Influence of processing parameters (2017, background): “The strength of L-PBF stainless steel 316L was reported to be very sensitive to the sub-grain size [51].”
An overview of powder granulometry on feedstock and part performance in the selective laser melting process (2017, background): “Grain sizes in SLM parts are also controllable through the modification of process settings where faster scan speeds and lower resulting energy densities were shown to produce finer microstructures [28,45].”
High cycle fatigue life prediction of laser additive manufactured stainless steel: A machine learning approach (2019, background): “6 [44, 45], as well as dislocation and second phase particles at the grain and sub-grain boundaries [46].”