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Additive manufacturingAdditive manufacturing (AM) is a rapidly growing field; however, the material has not been adequately characterized and compared to that of conventional wrought or cast materials. Stainless steelStainless steel 316L has a wide range of applications in the aerospace and biomedical fields. This work aimed to generate a dataset of different material characteristics for SS316L alloy produced using laser powder bed fusionLaser Powder Bed Fusion (LPBF) (L-PBF) and laser directed energy depositionDirected energy deposition (L-DED) processesProcess. Two powder blends from 316L were received from two different powder suppliers. The chemical composition has no significant effect on the as-built microstructureMicrostructure. The microstructureMicrostructure in the case of L-PBF is much finer than that in the case of L-DED. However, the microstructureMicrostructure after heat treatmentHeat treatment revealed different microstructural characteristics. The obtained mechanical propertiesMechanical properties and stress corrosionCorrosion cracking resistance of the additively manufactured material are above those of the wrought alloy.

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Characterization of Stainless Steel 316L Alloy Manufactured by Different Additive Manufacturing Processes

  • 会议论文

  • 发表日期：

    2026年

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  • Alber Sadek

摘要

Additive manufacturingAdditive manufacturing (AM) is a rapidly growing field; however, the material has not been adequately characterized and compared to that of conventional wrought or cast materials. Stainless steelStainless steel 316L has a wide range of applications in the aerospace and biomedical fields. This work aimed to generate a dataset of different material characteristics for SS316L alloy produced using laser powder bed fusionLaser Powder Bed Fusion (LPBF) (L-PBF) and laser directed energy depositionDirected energy deposition (L-DED) processesProcess. Two powder blends from 316L were received from two different powder suppliers. The chemical composition has no significant effect on the as-built microstructureMicrostructure. The microstructureMicrostructure in the case of L-PBF is much finer than that in the case of L-DED. However, the microstructureMicrostructure after heat treatmentHeat treatment revealed different microstructural characteristics. The obtained mechanical propertiesMechanical properties and stress corrosionCorrosion cracking resistance of the additively manufactured material are above those of the wrought alloy.