Publications by authors named "Haeju Jo"

Article Synopsis
  • Additive manufacturing has evolved to not only strengthen lightweight materials but also to create complex multi-material combinations that enhance functionality.
  • This study introduces a new lamination method for laser-directed energy deposition (LDED) aimed at producing dense multi-material components using AISI 316L stainless steel and Inconel 625.
  • The research involves tensile tests and detailed surface analyses of the fabricated specimens, revealing that mechanical properties vary based on lamination direction and order, impacting crack and pore formation.
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This study investigated the mechanical properties of steel in flanges, with the goal of obtaining high strength and high toughness. Quenching was applied alone or in combination with tempering at one of nine combinations of three temperatures and durations . Cooling rates at various flange locations during quenching were first estimated using finite element method simulation, and the three locations were selected for mechanical testing in terms of cooling rate.

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