|About this Abstract
||2023 TMS Annual Meeting & Exhibition
||Environmental Degradation of Additively Manufactured Alloys
||Stress Corrosion Cracking Growth in Additively Manufactured 316L Stainless Steel
||Ainsley Pinkowitz, Tressa White
|On-Site Speaker (Planned)
Additively manufactured (AM) metals have opened exciting pathways for versatility and agility. For components which require stress corrosion cracking (SCC) resistance, AM replacements will need to display equal or slower SCC growth rates to the traditional wrought equivalent. Testing was performed in this work to observe the susceptibility of AM 316L stainless steel (SS) to SCC in both deaerated pure water and aerated, ion faulted conditions at temperatures of 177 – 360°C. Effects of orientation, temperature, environment, and different processing conditions will be discussed. Results indicate superior SCC resistance in the AM 316L compared with its wrought counterpart. A clear orientation dependence was observed, with X-Z (i.e. Crack growth in the direction of dendritic grain growth) having the highest growth rates. Overall AM 316L SS makes a very promising material for use where typical 304/304L or 316/316L wrought is already employed with regards to its impressive SCC growth resistance.
||Nuclear Materials, Additive Manufacturing, Environmental Effects