Experimental investigation and statistical optimisation of the selective laser melting process of a maraging steel

By G. Casalino, S. Campanelli, N. Contuzzi, A. Ludovico. 2015

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Statistical analysis of dimensional accuracy in additive manufacturing considering STL model properties (2018, background): “Authors identified that scan speed and laser power are significant for all mechanical properties except surface roughness, and proposed a map for the correct combination of these two process parameters [2].”
Microstructural evolution and mechanical properties of maraging steel produced by wire + arc additive manufacture process (2017, background): “9% [19]) as a result of the unmelted particles and oxides inclusions, which adversely affected the mechanical properties of the AM parts [21].”
Plastic anisotropy of additively manufactured maraging steel: Influence of the build orientation and heat treatments (2019, methodology): “Other available test-data is mainly limited to static testing (tensile, and/or hardness) of maraging steel 300 fabricated in one [19, 14, 7, 20, 6, 21, 22, 3, 23, 24], or two [25, 26, 12, 16, 27] of the primary AM build orientations.”
Massive nanoprecipitation in an Fe-19Ni-xAl maraging steel triggered by the intrinsic heat treatment during laser metal deposition (2017, neutral): “This work demonstrates the possibility of exploiting the IHT of the LMD process for the production of samples that are precipitation strengthened during the additive manufacturing process without need for any further heat treatment.”