Potential dependence of specific adsorption of anions at the tip of a crack in steel

Journal Article · Tue Jul 01 04:00:00 EDT 1986 · Prot. Met. (Engl. Transl.); (United States)

OSTI ID:5192913

Marichev, V A

This paper considers a method of investigation of the potential dependence of the specific adsorption of anions, consisting in experimental determination of the liability of steel to hydrogen embrittlement in relation to the anion composition of the electrolyte and the potential at which a passivating film is formed at the tip of a crack and calculation of the ratio of the adsorption coefficients of the competing anions. Data are presented on the specific adsorption of some anions on martensitically aging N18K95MT at potentials from -1 to +0.8 V n.h.e. embrittlement increase in the order fluorine-iodine-bromine-chlorine, the same as in pitting on iron.

• Research Organization: Institute of Physical Chemistry, Academy of Sciences
• OSTI ID: 5192913
• Journal Information: Prot. Met. (Engl. Transl.); (United States), Journal Name: Prot. Met. (Engl. Transl.); (United States) Vol. 21:6; ISSN PTNMA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103 -- Metals & Alloys-- Mechanical Properties
360105* -- Metals & Alloys-- Corrosion & Erosion
ADSORPTION
ALKALI METAL COMPOUNDS
ALLOYS
BORATES
BORON COMPOUNDS
BROMIDES
BROMINE COMPOUNDS
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
CHROMIUM ALLOYS
CORROSION
CORROSIVE EFFECTS
CRACK PROPAGATION
ELECTROCHEMICAL CORROSION
EMBRITTLEMENT
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HYDROGEN EMBRITTLEMENT
IODIDES
IODINE COMPOUNDS
IRON ALLOYS
IRON BASE ALLOYS
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NICKEL STEELS
NICKEL-CHROMIUM STEELS
NITRATES
NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PASSIVATION
PITTING CORROSION
SODIUM COMPOUNDS
SODIUM NITRATES
SORPTION
STEELS
STRESS CORROSION
STRESS INTENSITY FACTORS