HOT WATER CORROSION RESISTANCE OF ZIRCONIUM AND ZIRCALOY 2 MADE USING A HIGH-MANGANESE MAGNESIUM REDUCTANT IN THE KROLL PROCESS
This investigation was undertaken to determine the corrosion resistance of zirconium and Zircaloy-2 made using the regular grade of primary magnesium of the Dow Chemical Company as the reductant in the Kroll process for producing primary zirconium. A change to this reductant from that presently used which is ''Nelco'' magnesium, a product of the ferrosilicon process, would be economically advantageous wcre the properties of the resulting products comparable. Zirconium and Zircaloy2 ingots were cast by double arc-melting sponge. Specimens from the ingots were subjected to hot water corrosion tests. Ingot quality was found to be satisfactory. Manganese content was significantly higher in the alloys from ''Dow Regular'' magnesium than values ordinarily found for the same alloys from ''Nelco'' magnesium. Other impurity differences were slight, most values being within limits of Westinghouse specification. 11537E. The results indicated that the hot water corrosion resistance of Zircaloy-2 from the ''Dow Regular'' magnesium was comparable to that of this alloy from ''Nelco'' magnesium. The corrosion data for zirconium, however, were inconclusive. (auth)
- Research Organization:
- Bureau of Mines. Northwest Electrodevelopment Experiment Station , Albany, Oreg.
- NSA Number:
- NSA-12-016362
- OSTI ID:
- 4298358
- Report Number(s):
- USBM-U-64
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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