Publication number: 20100128834
Abstract: Articles, such as tubing or strips, which have excellent corrosion resistance to water or steam at elevated temperatures, are produced from alloys having 0.2 to 1.5 weight percent niobium, 0.01 to 0.45 weight percent iron, at least one additional alloy element selected from 0.02 to 0.8 weight percent tin, 0.05 to 0.5 weight percent chromium, 0.02 to 0.3 weight percent copper, 0.1 to 0.3 weight percent vanadium, 0.01 to 0.1 weight percent nickel, the balance at least 97 weight percent zirconium, including impurities, wherein the alloy may be fabricated from a process of forging the zirconium alloy into a material, beta quenching the material, forming the material by extruding or hot rolling the material, cold working the material with one or a multiplicity of cold working steps, wherein the cold working step includes cold reducing the material and annealing the material at an intermediate anneal temperature of 960°-1105° F., and final working and annealing of the material.
Type:
Application
Filed:
February 1, 2010
Publication date:
May 27, 2010
Applicant:
Westinghouse Electric Company LLC
Inventors:
David Colburn, Robert Comstock, Terrence Cook, Mats Dahlback, John P. Foster, Anand Garde, Pascal Jourdain, Ronald Kesterson, Micheal McClarren, Lynn Nuhfer, Jonna Partezana, Kenneth Yueh, James A. Boshers, Penney File