Method for manufacturing zirconium alloys and alloys manufactured according to the method
Abstract
Abstract IN MAKING A ZIRONIUM ALLOY OF THE KNOWN TYPE, WHICH, BESIDES ZIRCONIUM AND AN INSIGNIFICANT AMOUNT OF IMPURITIES, ESSENTIALLY CONTAINS ONYL 0.2-2.5 WT. PERCENT TIN AND IN TOTAL 0.1-3.0 WT. PERCENT OF ONE OR MORE OF THE ELEMENTS IRON, CHROMIUM,NICKEL AND NIOBIUM AND WHICH AT HIGHER TEMPERATURES HAVE B-PHASE STRUCTURE AND AT LOWER TEMPERATURES HAVE X-PHASE STRUCTURE, THE INVENTIVE OBJECT IS TO GIVE THE ALLOY SUCH AN X-PHASE STRUCTURE THAT WHEN THE B-PHASE IS TRANSFORMED TO X-PHASE, A RAISED DUCTILITY AND IMPROVED SURFACE PROPERTIES ARE OBTAINED. THE OBJECT IS MET BY INCLUDING, AMONGST THE COMPONENTS WHEN THE ALLOY IS MANUFACTURED BY MELTING, ONE OR MORE METALLIC CARBIDES THE METALLIC CARBIDE SO ADDED BEING IN SUCH AN AMOUNT THAT THE FINAL CARBON CONTENT OF THE ALLOY IS 140-300 PARTS OF WEIGHT PER MILLION PARTS OF WEIGHT OF THE ALLOY.
Inventors
- 👤 Mats Soren Bergqvist
- 👤 Olof Krister Kallstrom
- 👤 Nils Axel Gunnar Okvist
Bibliographic Details
Claims Analysis
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