Title: Framework Validation for Testing Build Uniformity in Additively Manufactured 17% Chromium 4% Nickel Stainless Steel

Authors: Julianna Posey, Michael Duffy, Caroline Vail, Marc Zupan

DOI: 10.33599/nasampe/s.21.0531

Abstract: For additive manufacturing (AM) to meet industrial needs for next-generation marine vessels, the impact of processing parameters, geometry, and material performance must be defined. Specifically, precipitation hardenable stainless steels have been identified for research due to the capability for increased corrosion resistance and strength. Alloyed 17% Chromium - 4% Nickel (17-4 PH) thin fin structures of three thicknesses and four build angles and zig-zag structures of four width reductions were manufactured using a EOS M290 powder bed fusion AM system. This work characterizes and defines relevant processing parameters and manufacturing techniques that cause differences in component and material performance. Surface roughness is measured at upskin and downskin surfaces at different build angles. Vickers hardness testing is explored with respect to build geometry. Recommendations are provided for a comparative analysis.

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Conference: SAMPE NEXUS 2021

Publication Date: 2021/06/29

SKU: TP21-0000000531

Pages: 16

Price: FREE