Effect of Build Orientation on Anisotropy in Tensile Behavior of Laser Powder Bed Fusion Fabricated SS316L
Source abstract
Abstract
In the present study, Stainless steel 316L (SS316L) cylindrical specimens were fabricated at two different build orientations and two different laser powers using Laser powder bed fusion process (LPBF). Microstructural characterization such as XRD, SEM, EBSD analysis and tensile testing were carried out on fabricated specimens in stress relieved condition to understand the anisotropic behavior of LPBF printed specimens. Horizontally oriented specimens showed higher tensile strength when compared to vertically oriented specimens for both laser powers. XRD and EBSD phase maps did not reveal the presence of any secondary phases. However, build orientation and laser power affected the crystallite size of the samples. Bimodal grain structure comprising coarse columnar grains and fine equiaxed grains were observed from the micrographs. With variation in build orientation, there was a significant change in the average grain size of the specimens. High dislocation density was observed in horizontally oriented samples built at low laser power because of dislocation annihilation that can occur at high temperatures. However, EBSD analysis revealed random weak crystallographic texture which does not vary significantly with laser power or build orientation. Variation in grain size, grain morphology, sub-grain features and dislocation density are the reasons for the anisotropic tensile behavior observed in LPBF printed SS316L coupons in stress relieved condition.
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Research context
OpenAlex topics: Additive Manufacturing Materials and Processes · Additive Manufacturing and 3D Printing Technologies · High Entropy Alloys Studies
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References (37)
Show source-provided references
1. Y. Hosoi, Introduction to Stainless Steel, Keikinzoku/J. Jpn. Inst. Light Met., 1987, 37, p 624–635. https://doi.org/10.2464/jilm.37.62410.2464/jilm.37.624 ↗
2. C. Emmelmann, D. Herzog, and J. Kranz, Design for laser additive manufacturing, Elsevier, Amsterdam, 2017. https://doi.org/10.1016/B978-0-08-100433-3.00010-510.1016/B978-0-08-100433-3.00010-5 ↗
3. W.E. King, A.T. Anderson, R.M. Ferencz, N.E. Hodge, C. Kamath, S.A. Khairallah, and A.M. Rubenchik, Laser Powder Bed Fusion Additive Manufacturing of Metals; Physics, Computational, and Materials Challenges, Appl. Phys. Rev., 2015 https://doi.org/10.1063/1.493780910.1063/1.4937809 ↗
4. N. Ahmed, I. Barsoum, G. Haidemenopoulos, and R.K.A. Al-Rub, Process Parameter Selection and Optimization of Laser Powder Bed Fusion for 316L Stainless Steel: A Review, J. Manuf. Process, 2022, 75, p 415–434. https://doi.org/10.1016/j.jmapro.2021.12.06410.1016/j.jmapro.2021.12.064 ↗
5. J.P. Choi, G.H. Shin, M. Brochu, Y.J. Kim, S.S. Yang, K.T. Kim et al., Densification Behavior of 316L Stainless Steel Parts Fabricated by Selective Laser Melting by Variation in Laser Energy Density, Mater. Trans., 2016, 57, p 1952–1959. https://doi.org/10.2320/matertrans.M201628410.2320/matertrans.M2016284 ↗
6. M. Gor, H. Soni, V. Wankhede, P. Sahlot, and K.A. Grzelak, A Critical Review on Effect of Process Parameters on Mechanical and Microstructural Properties of Powder-Bed Fusion Additive Manufacturing of SS316L, Materials, 2021, 14(21), p 6527. https://doi.org/10.3390/ma1421652710.3390/ma14216527 ↗
7. P.I. Pradeep, V.A. Kumar, A. Sriranganath, S.K. Singh, A. Sahu, T.S. Kumar et al., Characterization and Qualification of LPBF Additively Manufactured AISI-316L Stainless Steel Brackets for Aerospace Application, Trans. Indian Natl. Acad. Eng., 2020, 5, p 603–616. https://doi.org/10.1007/s41403-020-00159-x10.1007/s41403-020-00159-x ↗
8. A.A. Deev, P.A. Kuznetcov, and S.N. Petrov, Anisotropy of Mechanical Properties and its Correlation with the Structure of the Stainless Steel 316L Produced by the SLM Method, Phys. Procedia, 2016, 83, p 789–796. https://doi.org/10.1016/j.phpro.2016.08.08110.1016/j.phpro.2016.08.081 ↗
9. A. Charmi, R. Falkenberg, L. Ávila, G. Mohr, K. Sommer, A. Ulbricht et al., Mechanical Anisotropy of Additively Manufactured Stainless Steel 316L: An Experimental and Numerical Study, Mater. Sci. Eng. A, 2021, 799, p 140154. https://doi.org/10.1016/j.msea.2020.14015410.1016/j.msea.2020.140154 ↗
10. M. Mukherjee, Effect of Build Geometry and Orientation on Microstructure and Properties of Additively Manufactured 316L Stainless Steel by Laser Metal Deposition, Materialia, 2019, 7, p 100359. https://doi.org/10.1016/j.mtla.2019.10035910.1016/j.mtla.2019.100359 ↗
11. Q. Porter, J. Morrow, and C. Ma, Selective Laser Melting of 316L Stainless Steel: Homogeneity of Thermal History, Microstructure, and Mechanical Properties, Int. J. Adv. Manuf. Technol., 2020, 111, p 3343–3350. https://doi.org/10.1007/s00170-020-06308-410.1007/s00170-020-06308-4 ↗
12. S. Piazza, B. Merrigan, D.P. Dowling, and M. Celikin, The Effects of Geometry and Laser Power on the Porosity and Melt Pool Formation in Additively Manufactured 316L Stainless Steel, Int. J. Adv. Manuf. Technol., 2020, 111, p 1457–1470. https://doi.org/10.1007/s00170-020-06196-810.1007/s00170-020-06196-8 ↗
13. X. Wang, J.A. Muñiz-Lerma, O. Sánchez-Mata, M. AttarianShandiz, and M. Brochu, Microstructure and Mechanical Properties of Stainless Steel 316L Vertical Struts Manufactured by Laser Powder Bed Fusion Process, Mater. Sci. Eng. A, 2018, 736, p 27–40. https://doi.org/10.1016/j.msea.2018.08.06910.1016/j.msea.2018.08.069 ↗
14. Z. Sun, X. Tan, S.B. Tor, and C.K. Chua, Simultaneously Enhanced Strength and Ductility for 3D-Printed Stainless Steel 316L by Selective Laser Melting, NPG Asia Mater., 2018, 10, p 127–136. https://doi.org/10.1038/s41427-018-0018-510.1038/s41427-018-0018-5 ↗
15. ASTM E8. ASTM E8/E8M standard test methods for tension testing of metallic materials 1. Annu B ASTM Stand 4 2010:1–27. https://doi.org/10.1520/E0008.10.1520/E0008 ↗
16. L. Cui, S. Jiang, J. Xu, R.L. Peng, R.T. Mousavian, and J. Moverare, Revealing Relationships Between Microstructure and Hardening Nature of Additively Manufactured 316L Stainless Steel, Mater. Des., 2021, 198, p 109385. https://doi.org/10.1016/j.matdes.2020.10938510.1016/j.matdes.2020.109385 ↗
17. F. Weng, S. Gao, J. Jiang, J.J. Wang, and P. Guo, A Novel Strategy to Fabricate Thin 316L Stainless Steel Rods by Continuous Directed Energy Deposition in Z Direction, Addit. Manuf., 2019, 27, p 474–481. https://doi.org/10.1016/j.addma.2019.03.02410.1016/j.addma.2019.03.024 ↗
18. A. Leicht, U. Klement, and E. Hryha, Effect of Build Geometry on the Microstructural Development of 316L Parts Produced by Additive Manufacturing, Mater. Charact., 2018, 143, p 137–143. https://doi.org/10.1016/j.matchar.2018.04.04010.1016/j.matchar.2018.04.040 ↗
19. E. Liverani, S. Toschi, L. Ceschini, and A. Fortunato, Effect of Selective Laser Melting (SLM) Process Parameters on Microstructure and Mechanical Properties of 316L Austenitic Stainless Steel, J. Mater. Process. Technol., 2017, 249, p 255–263. https://doi.org/10.1016/j.jmatprotec.2017.05.04210.1016/j.jmatprotec.2017.05.042 ↗
20. M.R. Jandaghi, H. Pouraliakbar, S.H. Shim, V. Fallah, S.I. Hong, and M. Pavese, In-situ Alloying of Stainless Steel 316L by Co-inoculation of Ti and Mn using LPBF Additive Manufacturing: Microstructural Evolution and Mechanical Properties, Mater. Sci. Eng. A, 2022, 857, p 144114. https://doi.org/10.1016/j.msea.2022.14411410.1016/j.msea.2022.144114 ↗
21. M.R. Jandaghi, A. Saboori, L. Iuliano, and M. Pavese, On the Effect of Rapid Annealing on the Microstructure and Mechanical Behavior of Additively Manufactured Stainless Steel by Laser Powder Bed Fusion, Mater. Sci. Eng. A, 2021, 828, p 142109. https://doi.org/10.1016/j.msea.2021.14210910.1016/j.msea.2021.142109 ↗
22. J.K. Chaurasia, A.N. Jinoop, P. Parthasarathy, C.P. Paul, S. Bindra, and S. Bontha, Optik Study of Melt Pool Geometry and Solidification Microstructure during Laser Surface Melting of Inconel 625 Alloy, Optik (Stuttg), 2021, 246, p 167766. https://doi.org/10.1016/j.ijleo.2021.16776610.1016/j.ijleo.2021.167766 ↗
23. K. Saeidi, X. Gao, Y. Zhong, and Z.J. Shen, A Hardened Austenite Steel with Columnar Sub-Grain Structure Formed by Laser Melting, Mater. Sci. Eng. A, 2015, 625, p 221–229. https://doi.org/10.1016/j.msea.2014.12.01810.1016/j.msea.2014.12.018 ↗
24. D. Wang, C. Song, Y. Yang, and Y. Bai, Investigation of Crystal Growth Mechanism during Selective Laser Melting and Mechanical Property Characterization of 316L Stainless Steel Parts, JMADE, 2016, 100, p 291–299. https://doi.org/10.1016/j.matdes.2016.03.11110.1016/j.matdes.2016.03.111 ↗
25. Y. Hong, C. Zhou, Y. Zheng, L. Zhang, and J. Zheng, The Cellular Boundary with High Density of Dislocations Governed the Strengthening Mechanism in Selective Laser Melted 316L Stainless Steel, Mater. Sci. Eng. A, 2021, 799, p 140279. https://doi.org/10.1016/j.msea.2020.14027910.1016/j.msea.2020.140279 ↗
26. H. Zhang, J. Geng, R.T. Ott, M.F. Besser, and M.J. Kramer, Effect of Temperature on the Nano/Microstructure and Mechanical Behavior of Nanotwinned Ag Films, Metall. Mater. Trans. A, 2015, 46(9), p 4078–4085. https://doi.org/10.1007/s11661-015-3028-810.1007/s11661-015-3028-8 ↗
27. F. Milstein, B. Farber, K. Kim, L. Van den Berg, and W.F. Schnepple, Influence of Temperature upon Dislocation Mobility and Elastic Limit of Single Crystal HgI2, NuclInstrum Methods Phys. Res., 1983, 213(1), p 65–76.10.1016/0167-5087(83)90043-1 ↗
28. X.U. Huabi, H. Ruijiang, and S. Hui, Effects of High Temperature Annealing on the Dislocation Density and Electrical Properties of Upgraded Metallurgical Grade Multicrystalline Silicon, Chin. Sci. Bull., 2011, 56, p 695–699. https://doi.org/10.1007/s11434-010-4090-710.1007/s11434-010-4090-7 ↗
29. T. Niendorf, S. Leuders, A. Riemer, H.A. Richard, T. Tröster, and D. Schwarze, Highly Anisotropic Steel Processed by Selective Laser Melting, Metall. Mater. Trans. B Process. Metall. Mater. Process. Sci., 2013, 44, p 794–796. https://doi.org/10.1007/s11663-013-9875-z10.1007/s11663-013-9875-z ↗
30. X. Wang, J.A. Muñiz-Lerma, M. AttarianShandiz, O. Sanchez-Mata, and M. Brochu, Crystallographic-Orientation-Dependent Tensile Behaviours of Stainless Steel 316L Fabricated by Laser Powder Bed Fusion, Mater. Sci. Eng. A, 2019, 766, p 138395. https://doi.org/10.1016/j.msea.2019.13839510.1016/j.msea.2019.138395 ↗
31. T. Ishimoto, K. Hagihara, K. Hisamoto, and T. Nakano, Stability of Crystallographic Texture in Laser Powder Bed Fusion: Understanding the Competition of Crystal Growth using a Single Crystalline Seed, AdditManuf, 2021, 43, p 102004. https://doi.org/10.1016/j.addma.2021.10200410.1016/j.addma.2021.102004 ↗
32. M. Khorasani, A. Hossein, U. Shafique, S. Singamneni, G. Littlefair, E. Farabi et al., On the Role of Process Parameters on Meltpool Temperature and Tensile Properties of Stainless Steel 316L Produced by Powder Bed Fusion, J. Mater. Res. Technol., 2021, 12, p 2438–2452. https://doi.org/10.1016/j.jmrt.2021.04.04310.1016/j.jmrt.2021.04.043 ↗
33. J. James, D. Karlsson, V. Pacheco, U. Wiklund, U. Jansson, B. Hjörvarsson et al., The effect of Laser Scanning Strategies on Texture, Mechanical Properties, and Site-Specific Grain Orientation in Selective Laser Melted 316L SS, Mater. Des., 2020 https://doi.org/10.1016/j.matdes.2020.10885210.1016/j.matdes.2020.108852 ↗
34. Z. Wang, T.A. Palmer, and A.M. Beese, Effect of Processing Parameters on Microstructure and Tensile Properties of Austenitic Stainless Steel 304L made by Directed Energy Deposition Additive Manufacturing, Acta Mater., 2016, 110, p 226–235. https://doi.org/10.1016/j.actamat.2016.03.01910.1016/j.actamat.2016.03.019 ↗
35. G.E. Dieter, Mechanical metallurgy. 2011. https://doi.org/10.5962/bhl.title.35895.10.5962/bhl.title.35895 ↗
36. J.E. Bailey and P.B. Hirsch, The Dislocation Distribution, Flow Stress, and Stored Energy in Cold-Worked Polycrystalline Silver, Philos. Mag. J. Theor. Exp. Appl. Phys., 1960, 5(53), p 485–497. https://doi.org/10.1080/14786n.d10.1080/14786n.d ↗
37. G. Yang and S.J. Park, Deformation of Single Crystals, Polycrystalline Materials, and Thin Films: A Review, Materials (Basel), 2019 https://doi.org/10.3390/ma1212200310.3390/ma12122003 ↗