Effect of manganese on the structure and properties of nonmagnetic stainless steels

Predictive models for fatigue property of laser powder bed fusion stainless steel 316L

“…Processing conditions associated with over-melting could impact fatigue resistance in ways such as: 1) degraded material strength due to grain coarsening and vaporisation of volatile allying element, e.g. Manganese in stainless steel 316L [31][32][33]; 2) increased crack density due to porosity, e.g. caused by keyhole-mode laser melting [34] and intense spattering [35], and thermal cracks due to residual stress in the bulk material [36].…”

High cycle fatigue life prediction of laser additive manufactured stainless steel: A machine learning approach

“…The longer time for diffusion at slower cooling rate could have led to preferential clustering of second phase particles at the sub-grain boundaries rather than the grain boundaries, leading to the transgranular fracture [41]. Further increase in the energy input resulted in over-heating, where the evaporation of alloying elements caused degradation of the material properties [49,50], as in the case of Sample 2. The lower resistance to cracking was found to trigger crack initiation from small porosities on the order of 10 μm [41].…”

Austenitic Stainless Steel Powders with Increased Nitrogen Content for Laser Additive Manufacturing

“…However, only limited amounts of nitrogen can be added into the steel due to the low solubility of nitrogen [20]. The addition of manganese increases nitrogen solubility, allowing more nitrogen to be added [21]. Therefore, the second method used is to modify the steels by adding manganese and reducing nickel in the steels.…”