Electrochemical techniques for the analysis of corrosion in stainless steel components. 303 stainless steel in contact with TATB

Technical Report · Wed Aug 21 00:00:00 EDT 1985

DOI:https://doi.org/10.2172/5334364· OSTI ID:5334364

Firsich, D. W.

Electrochemical techniques can be used to predict the corrosion characteristics of a metal in a specific environment. The basic electrochemical principles, experimental techniques, and a detailed study of their use in characterizing the corrosion behavior of a particular 303 stainless steel are presented. This metal is the material of construction in a weapons component that comes in contact with 416 SS and the explosive TATB. The results of the electrochemical corrosion investigation indicated that at room temperature, in a nitrogen atmosphere, using chloride-free TATB, the introduction of moisture into the system will not promote significant corrosion, and the corrosive influences of materials which contact the 303 SS are negligible. The good corrosion characteristics of 303 SS are lost only when it is exposed to mobile chloride ion, which causes serious pitting/crevice corrosion. The effects of various 303 SS surface finishes upon chloride corrosion resistance were examined; it was shown that a passivation treatment provided only limited protection from chloride attack, and that pitting tended to begin in regions of rougher surface finish. Suggestions for improving the corrosion properties of the system are advanced. 3 refs., 10 figs.

• Research Organization: Mound Plant (MOUND), Miamisburg, OH (United States)
• DOE Contract Number: AC04-76DP00053
• OSTI ID: 5334364
• Report Number(s): MLM-3286; ON: DE85016982
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
36 MATERIALS SCIENCE
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
ELECTROCHEMISTRY
STAINLESS STEEL-303
ELECTROCHEMICAL CORROSION
PITTING CORROSION
CHLORIDES
CREVICE CORROSION
EXPERIMENTAL DATA
POLARIZATION
TATB
ALLOYS
CHEMICAL EXPLOSIVES
CHEMICAL REACTIONS
CHEMISTRY
CHLORINE COMPOUNDS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CORROSION
CORROSION RESISTANT ALLOYS
DATA
EXPLOSIVES
HALIDES
HALOGEN COMPOUNDS
INFORMATION
IRON ALLOYS
IRON BASE ALLOYS
NICKEL ALLOYS
NUMERICAL DATA
STAINLESS STEELS
STEELS
400400* - Electrochemistry
360105 - Metals & Alloys- Corrosion & Erosion
450100 - Military Technology
Weaponry
& National Defense- Chemical Explosions & Explosives