Multiscale microstructural heterogeneity and mechanical property scatter in Inconel 718 produced by directed energy deposition

• Main Authors: Yeoh, Yong Chen, Macchi. Guido, Jain, Ekta, Gaskey, Bernard, Raman, Sudharshan, Tay, Grace, Verdi, Davide, Patran, Alin, Grande, Antonio Mattia, Seita, Matteo
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2021
• Subjects: Engineering::Mechanical engineering; Directed Energy Deposition; Microstructure
• Online Access: https://hdl.handle.net/10356/154117
• Institution: Nanyang Technological University

Directed energy deposition (DED) is an additive manufacturing technique that enables rapid production and repair of metallic parts with flexible geometry. The complex nature of thermal and material transport during DED can yield unwanted microstructure heterogeneity, which causes scatter in parts pe...