Fine grains within narrow temperature range by tuning strain-induced boundary migration dominated recrystallization for selective laser melted Inconel 718

• Main Authors: Chen, Kewei, Li, Hua, Lim, Chong Heng, Jia, Ning, Yan, Weili
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2022
• Subjects: Engineering::Materials; Selective Laser Melting; Abnormal Grain Growth
• Online Access: https://hdl.handle.net/10356/163460
• Institution: Nanyang Technological University

In this study, fine grains are achieved with weak texture of selective laser melted Inconel 718 (SLM IN718) if annealed within a narrow temperature range (1,070 ∼ 1,090 °C), while abnormal grain growth (AGG) is induced if annealed at temperature higher than that range, resulting in large matrix grai...