|About this Abstract
||Materials Science & Technology 2019
||Additive Manufacturing of Metals: Microstructure and Material Properties of Nickel-based Alloys
||Stress Corrosion Cracking Resistance of Additively Manufactured Nickel Alloy UNS N07718 and UNS N09946 in Chloride-containing Environments
||Madison Burns, Matthias Gieseke, Christoph Wangenheim
|On-Site Speaker (Planned)
While the feasibility of additive manufacturing (AM) to produce components for the oil and gas (O&G) industry has been demonstrated, current research efforts focus on proving the reliability of AM material for operation in demanding service conditions. The beneficial combination of high strength, excellent thermal stability, and purpose-built corrosion resistance makes Ni-based superalloys a heavily-utilized alloy family within the O&G industry. Ni-based alloys like UNS N07718 and N09946 can be successfully utilized in demanding downhole applications under extreme mechanical loads in corrosive environments. These conventionally-manufactured alloys have been tested and have demonstrated excellent corrosion resistance in a variety of drilling environments. In contrast, limited data regarding the corrosion behavior of AM nickel-based alloys in similar environments has been collected to date. Here, the stress corrosion cracking resistance of UNS N07718 and N09946 produced using AM is investigated using slow strain rate testing in a high chloride-containing solution at elevated temperature.
||Planned: At-meeting proceedings