|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Additive Manufacturing for Energy Applications III
||Process-induced History Effects on the Creep Behavior of Additively Manufactured IN718 Alloys
||Saurabh Sharma, Kiran Solanki
|On-Site Speaker (Planned)
Nickel based superalloy IN718 is widely used in transportation industries at elevated temperatures; however, the complexity in design limits its operational efficiency and conventional manufacturing ability. Additive manufacturing (AM) can overcome it by producing near net shape components; however, a thorough understanding of mechanical behavior at elevated temperature is required before its actual use. In this work, process-induced history effects on the creep behavior in an additively manufactured IN718 alloy was investigated. In particular, three different heat treatment routes were chosen to tailor the microstructure by having the specific dissolution of precipitated phases. Microstructural observations were performed to verify the dissolution of phases after heat treatment. Compression and tensile creep experiments were performed on the specimens build in different orientations. Results showed that the creep properties were dependent on the nature of phases present and are comparable to wrought behavior with a proper heat treatment condition.
||Additive Manufacturing, High-Temperature Materials,