SYMPOSIA PAPER Published: 28 July 2021
STP162220190005

Analysis of the Corrosion Behavior of Vapor-Deposited CrN-Coated Zirconium under Normal Operation and Accident Scenarios

Source

Chromium nitride (CrN) coatings are considered as possible protective barrier materials for Zircaloys. CrN-coated zirconium alloys were exposed to primary water (300°C) and steam environments to evaluate their resistance to corrosion under normal reactor operating conditions and under accident conditions. A number of surface analytical techniques, including scanning electron microscopy coupled with energy dispersive X-ray spectroscopy, secondary ion mass spectrometry, and transmission electron microscopy were used to evaluate the effectiveness of the coatings. To examine the effects of irradiation, coated samples were exposed in-flux and out-of-flux at the Halden reactor at temperatures of 280°C and 325°C. The CrN coatings have been shown to be a barrier to corrosion and deuterium ingress under aqueous corrosion conditions and to act as a temporary barrier to corrosion under steam conditions.

Author Information

Dever, Caitlin
Materials and Mechanics, Canadian Nuclear Laboratories, Chalk River, ON, CA
Daub, Kevin
Queen's University, Kingston, ON, CA
Nordin, Heidi, M.
Materials and Mechanics, Canadian Nuclear Laboratories, Chalk River, ON, CA
Price: $25.00
Contact Sales
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Pages: 855–877
DOI: 10.1520/STP162220190005
ISBN-EB: 978-0-8031-7691-1
ISBN-13: 978-0-8031-7690-4