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


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.

References: [1] J. Zhang and Y. Jung. Additive Manufacturing: Materials, Processes, Quantifications and Applications. Butterworth-Heinemann, 2018. [2] W. Phillips. Additive Manufacturing: Opportunities, Challenges, Implications. Nova Science Publishers Incorporated, 2016. [3] A. Alafaghani, A. Qattawi, and M. Castañón, “Effect of manufacturing parameters on the microstructure and mechanical properties of metal laser sintering parts of precipitate hardenable metals,” The International Journal of Advanced Manufacturing Technology, vol. 99, Dec. 2018, doi: 10.1007/s00170-018-2586-5. [4] S. Cheruvathur, E. Lass, and C. Campbell, “Additive Manufacturing of 17-4 PH Stainless Steel: Post-processing Heat Treatment to Achieve Uniform Reproducible Microstructure,” JOM: The Journal of the Minerals, Metals & Materials Society, vol. 68, Dec. 2015, doi: 10.1007/S11837-015-1754-4. [5] A. Kudzal et al., “Effect of scan pattern on the microstructure and mechanical properties of Powder Bed Fusion additive manufactured 17-4 stainless steel,” Materials & Design, vol. 133, pp. 205–215, Nov. 2017, doi: 10.1016/j.matdes.2017.07.047. [6] S. D. Meredith, J. S. Zuback, J. S. Keist, and T. A. Palmer, “Impact of composition on the heat treatment response of additively manufactured 17–4 PH grade stainless steel,” Materials Science and Engineering: A, vol. 738, pp. 44–56, Dec. 2018, doi: 10.1016/j.msea.2018.09.066. [7] L. E. Murr et al., “Microstructures and Properties of 17-4 PH Stainless Steel Fabricated by Selective Laser Melting,” Journal of Materials Research and Technology, vol. 1, no. 3, pp. 167–177, Oct. 2012, doi: 10.1016/S2238-7854(12)70029-7. [8] J. Posey, “Repeatability of Additively Manufactured Precipitation Hardened 17% Chromium – 4% Nickel Stainless Steel,” M.S. thesis, Dept. Mechanical Engineering, UMBC, Baltimore, MD, USA, 2020. [9] A. Triantaphyllou et al., “Surface texture measurement for additive manufacturing,” Surface Topography: Metrology and Properties, vol. 3, p. 024002, May 2015, doi: 10.1088/2051-672X/3/2/024002.4.2 [10] “Surftest SJ-210- Series 178-Portable Surface Roughness Tester,” Mitutoyo. (accessed Aug. 01, 2020). [11] ISO 4288:1996. Geometrical Product Specifications (GPS) — Surface texture: Profile method — Rules and procedures for the assessment of surface texture. [12] ASTM E92-82(2003), Standard Test Method for Vickers Hardness of Metallic Materials, ASTM International, West Conshohocken, PA, 2003, [13] M. Jafarzadegan, A. Abdollah-zadeh, A. H. Feng, T. Saeid, J. Shen, and H. Assadi, “Microstructure and Mechanical Properties of a Dissimilar Friction Stir Weld between Austenitic Stainless Steel and Low Carbon Steel,” Journal of Materials Science & Technology, vol. 29, no. 4, pp. 367–372, Apr. 2013, doi: 10.1016/j.jmst.2013.02.008. [14] M. Mahmoudi, A. Elwany, A. Yadollahi, S. Thompson, L. Bian, and N. Shamsaei, “Mechanical properties and microstructural characterization of selective laser melted 17-4 PH stainless steel,” Rapid Prototyping Journal, vol. 23, Mar. 2017, doi: 10.1108/RPJ-12-2015-0192. [15] C.-N. Hsiao, C. S. Chiou, and J.-R. Yang, “Aging reactions in a 17-4 PH stainless steel,” Materials Chemistry and Physics, vol. 74, pp. 134–142, Mar. 2002, doi: 10.1016/S0254-0584(01)00460-6.

Conference: SAMPE NEXUS 2021

Publication Date: 2021/06/29

SKU: TP21-0000000531

Pages: 16

Price: FREE

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