CLEANING AND PASSIVATION OF CORROSION RESISTING STEELS
Technical Report
·
OSTI ID:4273674
Cleaning methods for removing surface contaminants such as scale, flux, slag, metallic lubricant, and iron from the surface of corrosion-resisting steels, and the functions of passivating treatments in nitric acid solutions as a final cleaning operation are examined. The rate of attack of nitric - hydrofluoric acid pickling solutions employed to remove scale or as a whitening solution following other methods of scale removal and that of nitric acid passivating solutions was evaluated with typical steels of the AISI Type 200, 300, and 400 series. The effect of chloride contamination of passivating solution on the rats of attack was also evaluated, as well as the effects of carbide precipitation. (auth)
- Research Organization:
- Naval Gun Factory, Washington, D.C.
- NSA Number:
- NSA-13-011839
- OSTI ID:
- 4273674
- Report Number(s):
- NAVORD-5518; NGF-T-28-57; PB-1
- Country of Publication:
- United States
- Language:
- English
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