Materials (Feb 2023)

Correlation between Cellular Structure Morphology and Anisotropic Yield in Additively Manufactured Stainless Steel 316L

  • Dae Woong Kim,
  • Soo Bin Han,
  • Yoon Sun Lee,
  • Dong Yong Park,
  • Ho-Jin Lee,
  • Sung Hyuk Park,
  • Hyejin Song

DOI
https://doi.org/10.3390/ma16041666
Journal volume & issue
Vol. 16, no. 4
p. 1666

Abstract

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Additively manufactured austenitic stainless steel 316L is composed of a cellular structure, which has a directionality, and is observed with a different morphology depending on the observation direction. The cellular structure morphology that appears with a high probability in grains with a specific grain orientation is determined. Taylor factor, which is calculated by considering grain orientation, is related to cellular structure morphology due to the directional cellular structure in additively manufactured austenitic stainless steel 316L. The Taylor factor affects the mechanical properties. The yield strength of additively manufactured SUS316L can be explained by the correlation between cellular structure morphology, grain orientation, and Taylor factor.

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