Corrosion of nickel and Monel welds of steel in chlorine trifluoride

Technical Report · Mon Jul 25 04:00:00 EDT 1988

OSTI ID:6911202

Fout, S L

Failures in the weld areas of nickel-plated steel pipe carrying chlorine trifluoride, ClF/sub 3/, prompted this investigation to determine the effect of weld composition on corrosion by ClF/sub 3/. Monel/steel and nickel/steel alloys of composition to simulate weld overlays were tested to determine their corrosion rates in ClF/sub 3/ at 200/degree/F and 300/degree/F. For both nickel/steel and Monel/steel, the corrosion rate was higher at the higher temperature. For nickel/steel alloys at compositions up to 50% iron, which would cover a range considered normal for welding, the corrosion rate would be within acceptable limits. For Monel/steel alloys, compositions up to 35% iron have an acceptable corrosion rate. Above this, the corrosion would be greater than a tolerable amount. It should pose no problem to keep the heat input to the weld low enough to produce a Monel weld with an iron content below 35%. 2 refs., 5 figs., 2 tabs.

• Research Organization: Portsmouth Gaseous Diffusion Plant, OH (USA)
• DOE Contract Number: AC05-76OR00001
• OSTI ID: 6911202
• Report Number(s): POEF-T-3487; ON: DE88014122
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
ALLOYS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CHLORINE COMPOUNDS
COPPER ALLOYS
CORROSION
CORROSIVE EFFECTS
DATA
DEPOSITION
ELEMENTS
EXPERIMENTAL DATA
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HIGH TEMPERATURE
INFORMATION
IRON ALLOYS
IRON BASE ALLOYS
JOINTS
METALS
MONEL
NICKEL
NICKEL ALLOYS
NICKEL BASE ALLOYS
NUMERICAL DATA
PIPES
PLATING
SIMULATION
STEELS
SURFACE COATING
TEMPERATURE EFFECTS
TRANSITION ELEMENTS
WELDED JOINTS