About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
Environmental Degradation of Additively Manufactured Alloys
|
Presentation Title |
C-9: Contrasting Corrosion and Cracking Behavior of Additively Manufactured and Wrought 17-4PH Stainless Steel |
Author(s) |
Trevor Shoemaker, James Burns |
On-Site Speaker (Planned) |
Trevor Shoemaker |
Abstract Scope |
Prior to use in demanding marine structural environments, additively manufactured (AM) alloys must be evaluated for corrosion and cracking performance. The current study compares and contrasts corrosion and cracking behavior of wrought 17-4PH stainless steel and its additively manufactured equivalent. Crack growth behavior as a function of stress intensity are investigated in a number of environments including humid air and NaCl solution mimicking seawater at number of electrochemical potentials. Fractography and microstructural analysis is used to aid in the characterization of underlying damage mechanisms. Results of this study will serve as a corrosion/cracking performance benchmark for the latest additive manufacturing processes versus existing wrought alloy capabilities applied to the 17-4PH material system. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |