CANDU-PHW Pressure Tubes: Their Manufacture, Inspection, and Properties
- 1 June 1982
- journal article
- research article
- Published by Taylor & Francis in Nuclear Technology
- Vol. 57 (3) , 413-425
- https://doi.org/10.13182/nt82-a26307
Abstract
Cold-worked Zr—2.5 wt% Nb pressure tubes for Canada Deuterium Uranium pressurized heavy water reactors are made by hot extruding hollow billets into tubes that are cold-worked to size and to develop their tensile strength. All manufacturing steps are closely controlled, and the tubes meet very stringent specifications. To ensure that the tubes are free of unacceptable defects, the ingots, billets, and finished tubes are ultrasonically inspected.The strength and flaw tolerance of the tubes have been measured. Tubes removed from both research and operating power reactors have been examined to measure changes in each of these properties due to the effects of reactor operation. All tests show that cold-worked Zr—2.5 wt% Nb pressure tubes have excellent tensile strength and resistance to failure.Keywords
This publication has 6 references indexed in Scilit:
- Creep ductility of cold-worked Zr-2.5 wt% Nb and Zircaloy-2 tubes in-reactorJournal of Nuclear Materials, 1981
- Fracture behaviour of zirconium alloy pressure tubes for Canadian nuclear power reactorsInternational Journal of Pressure Vessels and Piping, 1978
- Recovery of cold-work in extruded Zr-2.5 wt% NbJournal of Nuclear Materials, 1976
- A note on the occurrence of exaggerated grain growth in sintered bodiesJournal of Nuclear Materials, 1968
- The development of texture in zirconium alloy tubesJournal of Nuclear Materials, 1967
- Terminal solubility and partitioning of hydrogen in the alpha phase of zirconium, Zircaloy-2 and Zircaloy-4Journal of Nuclear Materials, 1967