Radial bimetallic structures via wire arc directed energy deposition-based additive manufacturing.

ABSTRACT: Bimetallic wire arc additive manufacturing (AM) has traditionally been limited to depositions characterized by single planar interfaces. This study demonstrates a more complex radial interface concept, with in situ mechanical interlocking and as-built properties suggesting a prestressed compressive effect. A 308 L stainless core is surrounded by a mild steel casing, incrementally maintaining the interface throughout the Z-direction. A small difference in the thermal expansion coefficient between these steels creates residual stresses at their interface. X-ray diffraction analysis confirms phase purity and microstructural characterization reveals columnar grain growth independent of layer transitions. Hardness values are consistent with thermal dissipation characteristics, and the compressi

SUBMITTER: Squires L 

PROVIDER: S-EPMC10287757 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature