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SODIUM SILICATE AS A STRESS CORROSION INHIBITOR. Technical Report 67

Technical Report ·
OSTI ID:4227335
Sodium silicate was used in combination with insulating materials to investigate its usefulness as an inhibitor to chloride stress corrosion. The corrosion specimens were type 304 stainless steel pipes which were stressed, insulated and thermally cycled at 200 to 650 deg F by periodic heating and immersion into sea water. It was observed that some of the sodium silicate treated, insulated specimens exhibited no stress corrosion after about 100 hr of thermal cycling whereas untreated specimens corroded in approximately 48 hr. The experimentation indicates that a water soluble inhibiting agent such as sodium silicate incorporated with insulation materials offers promise as a preventative technique to chloride stress corrosion. The time of protection is indefinite since the silicate appears to become spent with prolonged cycling. (auth)
Research Organization:
MSA Research Corp., Callery, Penna.
NSA Number:
NSA-14-001803
OSTI ID:
4227335
Report Number(s):
MSAR-59-113
Country of Publication:
United States
Language:
English