Corrosion-electrochemical characteristics of rapidly hardened alloys of the Ti-B system

Journal Article · Fri Jul 01 04:00:00 EDT 1988 · Prot. Met. (Engl. Transl.); (United States)

OSTI ID:6095035

Gozalishvili, E I; Zedginidze, L N; Okrostsvaridze, O S; Tavadze, G F

The corrosion-electrochemical characteristics of fine-crystalline Ti + x atom % B (x = 2, 6, 9, 14, 16, and 18) were investigated. Thin foils of the alloys were produced by hardening from the liquid state in an electron-beam heater. Electrochemical investigations were conducted in solutions of sulfuric acid. Potentiodynamic curves were recorded from a stationary corrosion potential. The solutions were analyzed photocolorimetrically to calculate the rate of titanium dissolution. The standard potentials of all alloys shifted toward more positive values as the acidity of the solution increased. The dependences on alloy composition of such properties as phase behavior, corrosion potential, hydrogen overvoltage, partial rate of titanium dissolution, eutectic character, microstructure, oxidation, and passivation were evaluated.

• OSTI ID: 6095035
• Journal Information: Prot. Met. (Engl. Transl.); (United States), Journal Name: Prot. Met. (Engl. Transl.); (United States) Vol. 23:6; ISSN PTNMA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
360205 -- Ceramics
Cermets
& Refractories-- Corrosion & Erosion
ABSORPTION SPECTROSCOPY
ALLOYS
BORIDES
BORON ALLOYS
BORON COMPOUNDS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CORROSION
CORROSION PRODUCTS
CORROSIVE EFFECTS
CRYSTAL STRUCTURE
ELECTROCHEMICAL CORROSION
ELECTRON MICROSCOPY
EUTECTICS
HARDENING
HYDROGEN COMPOUNDS
INORGANIC ACIDS
KINETICS
MICROSCOPY
MICROSTRUCTURE
OXIDATION
PASSIVATION
PHASE STUDIES
POTENTIOMETRY
QUANTITY RATIO
REACTION KINETICS
SCANNING ELECTRON MICROSCOPY
SPECTROSCOPY
SULFURIC ACID
TITANIUM ALLOYS
TITANIUM BASE ALLOYS
TITANIUM BORIDES
TITANIUM COMPOUNDS
TITRATION
TRANSITION ELEMENT COMPOUNDS