Corrosion in methylphosphonic difluoride

Journal Article · Thu Dec 01 04:00:00 EST 1994 · Materials Performance; (United States)

OSTI ID:6704050

Zabielski, C V; Levy, M ^[1]

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1. Army Research Lab., Watertown, MA (United States)

Electrochemical potentiodynamic polarization studies were conducted for a variety of ferrous and nonferrous metals in methylphosphonic difluoride. Studies were also made of the effects of organic inhibitors on the corrosion rates of 1,020 steel, type 316L, and type 304 stainless steel, and magnesium in methylphosphonic difluoride. Chemical weapons in the US include binary munitions in which two components are kept in separate compartments until activation. These munitions must be stockpiled for long periods of time (up to 30 years) and then must operate reliably when the need arises. The principal cause of failure will be corrosion of the storage container by the highly corrosive methylphosphonic difluoride (DF). The objectives of this study were to: investigate the kinetics and mechanisms of corrosion of Al 6061-T6 and candidate metal alloys in DF; establish effective corrosion inhibitors; and ultimately incorporate or immobilize inhibitors into coatings that provide protection above the liquid line.

• OSTI ID: 6704050
• Journal Information: Materials Performance; (United States), Journal Name: Materials Performance; (United States) Vol. 33:12; ISSN MTPFBI; ISSN 0094-1492
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450600* -- Military Technology
Weaponry
& National Defense-- Chemical & Biological-- (1990)
ALKALINE EARTH METALS
ALLOYS
ALUMINIUM ALLOYS
ALUMINIUM BASE ALLOYS
AUSTENITIC STEELS
CHEMICAL WARFARE AGENTS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-MOLYBDENUM STEELS
CHROMIUM-NICKEL STEELS
CHROMIUM-NICKEL-MOLYBDENUM STEELS
CORROSION INHIBITORS
CORROSION PROTECTION
CORROSION RESISTANT ALLOYS
CORROSIVE EFFECTS
ELEMENTS
ENGINEERING
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HIGH ALLOY STEELS
IRON ALLOYS
IRON BASE ALLOYS
MAGNESIUM
MATERIALS
METALS
MOLYBDENUM ALLOYS
NICKEL
NICKEL ALLOYS
PERFORMANCE TESTING
PHOSPHORUS COMPOUNDS
PHOSPHORUS FLUORIDES
SAFETY ENGINEERING
STAINLESS STEEL-304
STAINLESS STEEL-316L
STAINLESS STEELS
STEEL-CR17NI12MO3-L
STEEL-CR19NI10
STEELS
STORAGE
TESTING
WEAPONS