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THE RELATIVE CORROSION RESISTANCE OF ZIRCALOY 2 MADE FROM ELECTROLYTIC ZIRCONIUM POWDER AND THAT OF THE CORRESPONDING ALLOY MADE FROM KROLL PROCESS SPONGE

Technical Report ·
OSTI ID:4310410
To determine the corrosion resistance of specimens of Zircaloy-2 made from electrolytic zirconium powder relative to that for the corresponding alloy made from Kroll Process sponge, corrosion specimens made from each of five lots of powder were tested both in hightemperature water and in steam. Corrosion data were compared to those for specimens from production lots, made from sponge, tested concurrently. Samples of the sheet from each of the lots of powder were subjected to chemical analysis and the results were compared to the specification limits of the specification governing the production of Zircaloy-2. The amounts of the impurities aluminum, nitrogen, and titanium, elements known to adversely affect corrosion resistance of Zircaloy-2, were found to be high. Corrosion resistance of Zircaloy-2 made from the powder was found to be much lower than that of the corresponding alloy made from sponge. (auth)
Research Organization:
Bureau of Mines. Northwest Electrodevelopment Experiment Station, Albany, Oreg.
NSA Number:
NSA-12-016359
OSTI ID:
4310410
Report Number(s):
USBM-U-43
Country of Publication:
Country unknown/Code not available
Language:
English