| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanical Behavior Related to Interface Physics IV
|
| Presentation Title |
In Situ Micro-Cantilever Beam Bending Tests to Assess the Adhesion Strength of Cr Coatings on Zry-4 |
| Author(s) |
Nan Li, Dongyue Xie, Hyosim Kim, Tyler Dabney, Ben Eftink, Kumar Sridharan, Tim Graening, Andrew Nelson, Saryu Fensin, Stuart Maloy |
| On-Site Speaker (Planned) |
Nan Li |
| Abstract Scope |
Due to their low thermal neutron absorption, excellent high-temperature corrosion resistance, and robust mechanical properties, zirconium alloys are preferred as fuel cladding in light water reactors. Post-Fukushima concerns about Zr alloys' oxidation and hydrogen production under severe conditions have prompted the development of Cr coatings to enhance corrosion resistance. These coatings benefit from their high corrosion resistance, melting point, strength, hardness, and wear resistance. Two coating techniques were employed: High Power Impulse Magnetron Sputtering (HiPIMS) at Oak Ridge National Laboratory produced a 6-micron Cr coating, and cold spray at the University of Wisconsin-Madison produced a 50-micron Cr coating. Micro-scale cantilever beams were crafted within the Cr coating, and in situ bending tests in a SEM using a PI-89 Pico-indent system revealed brittle failure at the interface with Zry-4, providing insights into the adhesion strength of Cr coatings. |
| Proceedings Inclusion? |
Planned: |