| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Coatings and Surface Engineering for Environmental Protection II
|
| Presentation Title |
Corrosion Study on CFRP-AZ31B Spot Joined by Friction Self-pierce Rivet |
| Author(s) |
Yong Chae Lim, Jiheon Jun, Jian Chen, Michael Brady, Donovan Leonard, Charles David Warren, Zhili Feng |
| On-Site Speaker (Planned) |
Yong Chae Lim |
| Abstract Scope |
Higher specific strength materials, such as magnesium alloys and carbon fiber reinforced composite (CFRP) can be applied for lightweight vehicle applications to improve fuel efficiency. However, joining and corrosion (particularly galvanic corrosion) of these materials are critical technical challenges for this application. In the present work, we attempted a novel friction self-piercing rivet process to spot join a carbon fiber composite to AZ31B with a laboratory coupon scale. Then, we studied the corrosion behavior of this dissimilar joint by 0.1 M NaCl immersion test with different exposure times. Corrosion depth was measured after immersion testing. Lap shear tensile testing was performed to access mechanical joint strength of post-corrosion specimens. Optical and electron microscopy techniques were employed to characterize corroded samples to understand corrosion behavior of CFRP-AZ31B joint. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |