The effects of heat treatment and surface state on the corrosion resistance of laser powder bed fusion 304L stainless steel in 3.5 wt% NaCl solution
The corrosion resistance of laser powder bed fusion (LPBF) 304L stainless steel (SS) in 3.5 wt% NaCl solution was evaluated at room temperature through potentiodynamic polarization and electrochemical impedance spectroscopy tests. For electropolished samples, annealing at 1200 °C slightly enhanced t...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-03-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424005520 |
| _version_ | 1797247813558468608 |
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| author | Shihao Zhang Mengyao Jia Wei Wang Juan Hou Wenjun Kuang |
| author_facet | Shihao Zhang Mengyao Jia Wei Wang Juan Hou Wenjun Kuang |
| author_sort | Shihao Zhang |
| collection | DOAJ |
| description | The corrosion resistance of laser powder bed fusion (LPBF) 304L stainless steel (SS) in 3.5 wt% NaCl solution was evaluated at room temperature through potentiodynamic polarization and electrochemical impedance spectroscopy tests. For electropolished samples, annealing at 1200 °C slightly enhanced the corrosion resistance due to changes in crystal orientation and inclusion composition, and reduced residual strain. In contrast, annealing at 1050 °C significantly reduced the corrosion resistance mainly due to the disappearance of dislocation cells and the remained residual dislocations. Residual stress/strain and martensitic transformation induced by sandpaper grinding can also deteriorate the corrosion resistance. Only the as-received sample shows stable passivation regardless of the surface conditions. |
| first_indexed | 2024-04-24T20:04:39Z |
| format | Article |
| id | doaj.art-8551346359e940129bcc2eaa36b99268 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-24T20:04:39Z |
| publishDate | 2024-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-8551346359e940129bcc2eaa36b992682024-03-24T06:58:59ZengElsevierJournal of Materials Research and Technology2238-78542024-03-012956205632The effects of heat treatment and surface state on the corrosion resistance of laser powder bed fusion 304L stainless steel in 3.5 wt% NaCl solutionShihao Zhang0Mengyao Jia1Wei Wang2Juan Hou3Wenjun Kuang4Center for Advancing Materials Performance from the Nanoscale (CAMP-Nano), State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, PR ChinaCenter for Advancing Materials Performance from the Nanoscale (CAMP-Nano), State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, PR ChinaState Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, PR ChinaSchool of Materials Science and Chemistry, University of Shanghai for Science and Technology, Shanghai, 200093, PR ChinaCenter for Advancing Materials Performance from the Nanoscale (CAMP-Nano), State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, PR China; Corresponding author.The corrosion resistance of laser powder bed fusion (LPBF) 304L stainless steel (SS) in 3.5 wt% NaCl solution was evaluated at room temperature through potentiodynamic polarization and electrochemical impedance spectroscopy tests. For electropolished samples, annealing at 1200 °C slightly enhanced the corrosion resistance due to changes in crystal orientation and inclusion composition, and reduced residual strain. In contrast, annealing at 1050 °C significantly reduced the corrosion resistance mainly due to the disappearance of dislocation cells and the remained residual dislocations. Residual stress/strain and martensitic transformation induced by sandpaper grinding can also deteriorate the corrosion resistance. Only the as-received sample shows stable passivation regardless of the surface conditions.http://www.sciencedirect.com/science/article/pii/S2238785424005520Laser powder bed fusion304L stainless steelCorrosion resistanceHeat treatmentSurface state |
| spellingShingle | Shihao Zhang Mengyao Jia Wei Wang Juan Hou Wenjun Kuang The effects of heat treatment and surface state on the corrosion resistance of laser powder bed fusion 304L stainless steel in 3.5 wt% NaCl solution Journal of Materials Research and Technology Laser powder bed fusion 304L stainless steel Corrosion resistance Heat treatment Surface state |
| title | The effects of heat treatment and surface state on the corrosion resistance of laser powder bed fusion 304L stainless steel in 3.5 wt% NaCl solution |
| title_full | The effects of heat treatment and surface state on the corrosion resistance of laser powder bed fusion 304L stainless steel in 3.5 wt% NaCl solution |
| title_fullStr | The effects of heat treatment and surface state on the corrosion resistance of laser powder bed fusion 304L stainless steel in 3.5 wt% NaCl solution |
| title_full_unstemmed | The effects of heat treatment and surface state on the corrosion resistance of laser powder bed fusion 304L stainless steel in 3.5 wt% NaCl solution |
| title_short | The effects of heat treatment and surface state on the corrosion resistance of laser powder bed fusion 304L stainless steel in 3.5 wt% NaCl solution |
| title_sort | effects of heat treatment and surface state on the corrosion resistance of laser powder bed fusion 304l stainless steel in 3 5 wt nacl solution |
| topic | Laser powder bed fusion 304L stainless steel Corrosion resistance Heat treatment Surface state |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424005520 |
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