Tensile Properties and Dislocation Structures of Yttria-Strengthened Inconel 718 Fabricated via Laser Powder Bed Fusion

Thesis entitled "Tensile Properties and Dislocation Structures of Yttria-Strengthened Inconel 718 fabricated via Laser Powder Bed Fusion" explores the integration of yttria nanoparticles into Inconel 718 to enhance its mechanical properties at various temperatures. Utilizing advanced laser powder bed fusion techniques, this study analyses the material's response under tensile stress at room temperature, 650 °C, and 800 °C. The research highlights significant improvements in strength and durability, attributed to yttria nanoparticle-retarded dislocation cellular patterns. These findings not only advance the field of aerospace materials but also offer insights into optimizing metal additive manufacturing processes.