
Effect of hydrogen on nanoindentation behavior of heat treated selective laser melted 316L stainless steel
- Author
- Ali Nabizada (UGent) , Lisa Claeys (UGent) , Kim Verbeken (UGent) and Tom Depover (UGent)
- Organization
- Abstract
- Selective Laser Melting (SLM) is an increasingly advantageous Additive Manufacturing (AM) technique for fabricating intricate components with potential applications in hydrogen storage and transport. Austenitic stainless steels (ASS) produced via SLM exhibit enhanced mechanical properties when compared to their conventionally manufactured (CM) counterparts. Nevertheless, the response of ASS to hydrogen exposure remains uncertain and requires further investigation. The interaction of hydrogen with heat-treated SLM 316L ASS was examined through exposing the net-shaped specimens to cathodic electrochemical hydrogen charging and nanoindentation loading tests correlated with Electron BackScatter Diffraction (EBSD) analysis. Thermal Desorption Spectroscopy (TDS) and melt extraction are used to evaluate the diffusivity and solubility of hydrogen, respectively. The low diffusion coefficient of hydrogen arising from the crystallographic and microstructural properties of SLM parts led to a restricted depth of hydrogen penetration. Therefore, nanoindentation, being a surface-based methodology, offers an effective means to assess the impact of hydrogen. The charged samples exhibited an observed enhancement in nanohardness, which can be attributed to the hydrogen-increased lattice friction and pinning effect. An explicit correlation between nanohardness displacement and grain orientation was observed for grain orientations close to <001>, <101>, and <111> parallel to building direction. This correlation was explained by considering the role of the different deformation mechanisms, solidification structure and dislocation density affecting the nanoindentation behavior.
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Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-01HCJ3P003R3JZBWFXVTB1W0BQ
- MLA
- Nabizada, Ali, et al. “Effect of Hydrogen on Nanoindentation Behavior of Heat Treated Selective Laser Melted 316L Stainless Steel.” EUROCORR 2023, European Corrosion Congress, Proceedings, 2023.
- APA
- Nabizada, A., Claeys, L., Verbeken, K., & Depover, T. (2023). Effect of hydrogen on nanoindentation behavior of heat treated selective laser melted 316L stainless steel. EUROCORR 2023, European Corrosion Congress, Proceedings. Presented at the EUROCORR 2023, European Corrosion Congress, Brussels, Belgium.
- Chicago author-date
- Nabizada, Ali, Lisa Claeys, Kim Verbeken, and Tom Depover. 2023. “Effect of Hydrogen on Nanoindentation Behavior of Heat Treated Selective Laser Melted 316L Stainless Steel.” In EUROCORR 2023, European Corrosion Congress, Proceedings.
- Chicago author-date (all authors)
- Nabizada, Ali, Lisa Claeys, Kim Verbeken, and Tom Depover. 2023. “Effect of Hydrogen on Nanoindentation Behavior of Heat Treated Selective Laser Melted 316L Stainless Steel.” In EUROCORR 2023, European Corrosion Congress, Proceedings.
- Vancouver
- 1.Nabizada A, Claeys L, Verbeken K, Depover T. Effect of hydrogen on nanoindentation behavior of heat treated selective laser melted 316L stainless steel. In: EUROCORR 2023, European Corrosion Congress, Proceedings. 2023.
- IEEE
- [1]A. Nabizada, L. Claeys, K. Verbeken, and T. Depover, “Effect of hydrogen on nanoindentation behavior of heat treated selective laser melted 316L stainless steel,” in EUROCORR 2023, European Corrosion Congress, Proceedings, Brussels, Belgium, 2023.
@inproceedings{01HCJ3P003R3JZBWFXVTB1W0BQ, abstract = {{Selective Laser Melting (SLM) is an increasingly advantageous Additive Manufacturing (AM) technique for fabricating intricate components with potential applications in hydrogen storage and transport. Austenitic stainless steels (ASS) produced via SLM exhibit enhanced mechanical properties when compared to their conventionally manufactured (CM) counterparts. Nevertheless, the response of ASS to hydrogen exposure remains uncertain and requires further investigation. The interaction of hydrogen with heat-treated SLM 316L ASS was examined through exposing the net-shaped specimens to cathodic electrochemical hydrogen charging and nanoindentation loading tests correlated with Electron BackScatter Diffraction (EBSD) analysis. Thermal Desorption Spectroscopy (TDS) and melt extraction are used to evaluate the diffusivity and solubility of hydrogen, respectively. The low diffusion coefficient of hydrogen arising from the crystallographic and microstructural properties of SLM parts led to a restricted depth of hydrogen penetration. Therefore, nanoindentation, being a surface-based methodology, offers an effective means to assess the impact of hydrogen. The charged samples exhibited an observed enhancement in nanohardness, which can be attributed to the hydrogen-increased lattice friction and pinning effect. An explicit correlation between nanohardness displacement and grain orientation was observed for grain orientations close to <001>, <101>, and <111> parallel to building direction. This correlation was explained by considering the role of the different deformation mechanisms, solidification structure and dislocation density affecting the nanoindentation behavior.}}, author = {{Nabizada, Ali and Claeys, Lisa and Verbeken, Kim and Depover, Tom}}, booktitle = {{EUROCORR 2023, European Corrosion Congress, Proceedings}}, language = {{eng}}, location = {{Brussels, Belgium}}, pages = {{5}}, title = {{Effect of hydrogen on nanoindentation behavior of heat treated selective laser melted 316L stainless steel}}, url = {{https://www.eurocorr2023.org/}}, year = {{2023}}, }