Powder Bed Fusion 공정으로 제조한 STS 316L의 미세조직과 후속 열처리 특성
Microstructural Analysis of STS316L Samples Manufactured by Powder Bed Fusion and Post-heat Treatments
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초록
In the powder bed fusion (PBF) process, a 3D shape is formed by the continuous stacking of very fine powder layers using computer-aided design (CAD) modeling data, following which laser irradiation can be used to fuse the layers forming the desired product. In this method, the main process parameters for manufacturing the desired 3D products are laser power, laser speed, powder form, powder size, laminated thickness, and laser diameter. Stainless steel (STS) 316L exhibits excellent strength at high temperatures, and is also corrosion resistant. Due to this, it is widely used in various additive manufacturing processes, and in the production of corrosion-resistant components with complicated shapes. In this study, rectangular specimens have been manufactured using STS 316L powder via the PBF process. Further, the effect of heat treatment at 800 °C on the microstructure and hardness has been investigated.
Abstract
In the powder bed fusion (PBF) process, a 3D shape is formed by the continuous stacking of very fine powder layers using computer-aided design (CAD) modeling data, following which laser irradiation can be used to fuse the layers forming the desired product. In this method, the main process parameters for manufacturing the desired 3D products are laser power, laser speed, powder form, powder size, laminated thickness, and laser diameter. Stainless steel (STS) 316L exhibits excellent strength at high temperatures, and is also corrosion resistant. Due to this, it is widely used in various additive manufacturing processes, and in the production of corrosion-resistant components with complicated shapes. In this study, rectangular specimens have been manufactured using STS 316L powder via the PBF process. Further, the effect of heat treatment at 800 °C on the microstructure and hardness has been investigated.
참고문헌 (19)
- "Wohlers Report: 3D Printing and Additive Manufacturing Global State of the Industry" (2020), Wohlers Associates
- I. Gibson, "Additive Manufacturing Technologies 3D Printing, Rapid Prototyping, and Direct Digital Manufacturing" (2015), Springer
- S. H. Joo, "4th Industrial Revolution 3D Printing", Cheong Media, ~ (2017)
- "ASTM International Technical Committee F42 on Additive Manufacturing Technologies", ASTM International, ~ (2009)
- I. Tolosa, , Int. J. Adv. Manuf. Technol, 51, pp.639~ (2010)
- 이정희, "시효열처리 및 UNSM 처리에 따른 316L 스테인리스강의 입계부식거동", CORROSION SCIENCE AND TECHNOLOGY, 14(6), pp.313~324 (2015), 한국부식방식학회[DOI]
- J.-H. Kim, , IFOST (2018)
- 노정우, "선택적 레이저 소결", 대한용접접합학회지, 26(4), pp.34~37 (2008), 대한용접접합학회
- R. Casati, , J. Mater. Sci. Technol, 32, pp.738~ (2016)
- E.-S. Lee, , Int. J. Adv. Manuf. Technol, 16, pp.591~ (2000)
- R. Saluja, , Int. J. Eng. Sci. Technol, 4, pp.2206~ (2012)
- Q. Chao, , Mater. Sci. Eng. A, 821, pp.141611~ (2021)
- T. Voisin, , Acta Mater, 203, pp.116476~ (2021)
- H. Yin, , Addit. Manuf, 41, pp.101981~ (2021)
- P. Krakhmalev, , Metals, 8, pp.643~ (2018)
- 박정민, "선택적 레이저 용융법으로 제조한 316L 스테인리스강의 기계적이방성에 미치는 기공의 영향", 한국분말재료학회지, 25(6), pp.475~481 (2018), 한국분말재료학회[DOI]
- T. Niendorf, , Metall. Mater. Trans. B, 44, pp.794~ (2013)
- T. Kurzynowski, , Mater. Sci. Eng. A, 718, pp.64~ (2018)
- J. J. Marattukalama, , Mater. Des, 193, pp.108852~ (2020)