Open Access. Powered by Scholars. Published by Universities.®

Nuclear Engineering Commons

Open Access. Powered by Scholars. Published by Universities.®

Review of Progress in Quantitative Nondestructive Evaluation

1991

Articles 1 - 1 of 1

Full-Text Articles in Nuclear Engineering

Measurement Of The Hydride Content In Zr-Nb Pressure Tubes By The Third Order Elastic Constants, George A. Alers, Michael Moles Jan 1991

Measurement Of The Hydride Content In Zr-Nb Pressure Tubes By The Third Order Elastic Constants, George A. Alers, Michael Moles

Review of Progress in Quantitative Nondestructive Evaluation

The CANDU nuclear reactors that supply a major portion of the electrical power to eastern Canada house the uranium fuel elements in long tubes made of a zirconium-niobium alloy. After lengthy exposure to the radiation inside the reactor, these tubes become filled with hydride precipitates that can ultimately nucleate small cracks. To avoid failure from these cracks, the tubes are now being replaced after a conservative length of time. If a quantitative method of determining the actual hydride content of particular tubes were available, it would be possible to extend this time on many tubes and thus avoid retubing costs ...