Abstract
AbstractThe effect of the post-manufacturing heat treatment (PMHT) on the pitting resistance of the directed energy deposition (DED) 316L stainless steel was evaluated. In an as-manufactured DED 316L, a fully austenitic microstructure with typical cellular structure and large columnar grains was observed. The cellular structure was retained after the PMHT of 850 °C/2 h but fully removed by the PMHT of 1150 °C/1 h, while large columnar grains survived in both cases. Both PHMTs significantly improved the pitting resistance of the DED 316L. Especially, the pitting potential of the DED 316L after the PMHT of 1150 °C/1 h was comparable to that of 2205 duplex stainless steel. The excellent pitting resistance of DED 316L after the PMHT of 1150 °C/1 h was caused by the reduction of residual stress, elimination of cellular structure, and presence of large columnar grains.
Funder
National Research Foundation of Korea
Ministry of Trade, Industry and Energy
Publisher
Springer Science and Business Media LLC
Subject
Materials Chemistry,Materials Science (miscellaneous),Chemistry (miscellaneous),Ceramics and Composites
Reference39 articles.
1. Liu, Z. et al. Additive manufacturing of metals: microstructure evolution and multistage control. J. Mater. Sci. Technol. 200, 224–236 (2021).
2. Liu, G. et al. Additive manufacturing of structural materials. Mater. Sci. Eng., R. 145, 100596 (2021).
3. Sander, G. et al. Corrosion of additively manufactured alloys: a review. Corrosion 74, 1318–1350 (2018).
4. Hemmasian Ettefagh, A., Guo, S. & Raush, J. Corrosion performance of additively manufactured stainless steel parts: A review. Addit. Manuf. 37, 101689 (2021).
5. Hamza, H. M., Deen, K. M., Khaliq, A., Asselin, E. & Haider, W. Microstructural, corrosion and mechanical properties of additively manufactured alloys: a review. Crit. Rev. Solid State Mater. Sci. 47, 46–98 (2021).
Cited by
13 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献