About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Environmentally Assisted Cracking: Theory and Practice
|
| Presentation Title |
Evaluation of Stress Corrosion Susceptibility in a Copper Alloy Using SSRT in an Experimental
Electrochemical Cell |
| Author(s) |
Karla Fernanda Villaseñor Pérez |
| On-Site Speaker (Planned) |
Karla Fernanda Villaseñor Pérez |
| Abstract Scope |
Stress corrosion cracking (SCC) in brass alloys is a critical phenomenon where mechanical stress and corrosive environments coexist. This study evaluates SCC susceptibility of a Cu-Zn (70/30) brass using Proof Ring testing under controlled laboratory conditions. Samples were exposed to 3.5% NaCl and ammoniacal solutions (pH 9) at room temperature for up to 96 hours. Intergranular cracks with average lengths of 250–300 µm were observed in the ammoniacal medium, while the chloride solution induced shallower, transgranular cracks. SEM analysis revealed mixed fracture modes and signs of dezincification, consistent with SCC in duplex brass. The ammoniacal solution proved more aggressive due to its destabilization of the passive film. Results confirm the Proof Ring setup as an effective tool for SCC detection under static load and support future work using dynamic methods such as Slow Strain Rate Testing (SSRT). |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Copper / Nickel / Cobalt, Nanotechnology |