Transactions of the Korean Society of Pressure Vessels and Piping (한국압력기기공학회 논문집)

Korean Society of Pressure Vessels and Piping (한국압력기기공학회)
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Tensile Test Results for Metal 3D Printed Specimens of Stainless Steel 316L Manufactured by PBF and DED

스테인리스강 316L 재질의 PBF 및 DED 방식 금속 3D프린팅 시편 인장 시험 결과

  • 장경남 (한국수력원자력(주) 중앙연구원) ;
  • 양승한 (한국수력원자력(주) 중앙연구원)
  • Received : 2023.05.15
  • Accepted : 2023.06.02
  • Published : 2023.06.30
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Abstract

Additive manufacturing technology, called as 3D printing, is one of fourth industrial revolution technologies that can drive innovation in the manufacturing process, and thus should be applied to nuclear industry for various purposes according to the manufacturing trend change in the future. In this paper, we performed tensile tests of 3D printed stainless steel 316L as-built specimens manufactured by two types of technology; DED (Directed Energy Deposition) and PBF (Powder Bed Fusion). Their mechanical properties (tensile strength, yield strength, elongation and reduction of area) were compared. As a result of comparison, the mechanical properties of the PBF specimens were slightly better than those of DED specimens. In the same additive type of specimens, the tensile and yield strength of specimens in the X and Y direction were higher than those in the Z direction, but the elongation and ROA were lower.

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References

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