About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
High-Temperature Corrosion and Degradation of Materials
|
| Presentation Title |
Steam Oxidation and Environmental Effects on Zr-Nb alloys |
| Author(s) |
Sean Li, Chaitanya S. Deo, Remi Dingreville, Scott Monismith, Preet M. Singh |
| On-Site Speaker (Planned) |
Sean Li |
| Abstract Scope |
Zr-based alloys are currently used for various applications in the nuclear industry due to their irradiation stability and mechanical properties. Newly developed Zr-based alloys typically have Nb as a major alloying element. In the present study, we systematically examine the effect of Nb addition on the oxidation behavior of Zr alloys. Binary Zr-Nb alloys with various hypoeutectoid, eutectoid, and hypereutectoid compositions were produced using an electric arc furnace. These samples were tested to determine their oxidation kinetics in air at temperatures between 200 °C and 500 °C using a Cahn thermobalance. It is important to study the oxidation behavior of these alloys under steam-rich environments, especially in nuclear reactor systems where high-temperature steam exposure is inevitable. A series of tests were systematically conducted in steam containing environments at temperatures ranging between 200 °C and 500 °C. Oxidation kinetics, oxide composition and morphology was compared with equivalent samples tested in air. |