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September 5, 2025MaterialsOpen Access

Microstructure Evolution and Mechanical Properties of Wire Arc Additively Manufactured DSS2209 Duplex Stainless Steel

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Authors

JSJian SunLLLiang LiuLZL.J. Zhang

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Overview

This research demonstrates microstructure variations impacting mechanical properties in duplex stainless steel, highlighting the effects of thermal gradients.

Key Points

  • Mechanical testing revealed that horizontal specimens demonstrated significantly higher strength, achieving a tensile strength of 610 MPa.
  • Contrastingly, vertical specimens exhibited greater ductility, showcasing improved elongation due to aligned columnar grains.
  • The study identified microstructural heterogeneity linked to process-induced thermal gradients and their effects on overall material performance.
  • Findings suggest that optimizing thermal cycling in wire arc additive manufacturing could enhance the microstructure and subsequent mechanical properties.

Cite This Study

Sun et al. (2025) studied this question.

synapsesocial.com/papers/68bb5f076d6d5674bcd02cb2https://doi.org/10.3390/ma18174066
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