Stress corrosion cracking of austenitic type 304 stainless steel in solutions of hydrochloric acid + sodium chloride at ambient temperature

Journal Article · Tue Nov 01 04:00:00 EST 1994 · Corrosion (Houston); (United States)

DOI:https://doi.org/10.5006/1.3293477· OSTI ID:6977397

Fang, Z; Wu, Y; Zhu, R; Cao, B; Xiao, F ^[1]

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1. Univ. of Science and Technology, Beijing (China). Dept. of Surface Science and Corrosion Engineering

Austenitic type 304 stainless steel is susceptible to stress corrosion cracking (SCC) in acidic chloride (Cl) solutions at ambient temperature. In this study, a layer of adsorbed product film enriched in chromium and nickel was found to form on the metal surface in the solutions. This product film had a protective role over the base metal. The nucleation of stress corrosion cracks was connected with the formation of the film and the buildup of a high local concentration of Cl. Observation by scanning electron microscopy and transmission electron microscopy showed the propagation of stress corrosion cracks was associated with selective corrosion of deformation-induced martensite. The probable mechanism of transgranular SCC in this system was slip dissolution.

• OSTI ID: 6977397
• Journal Information: Corrosion (Houston); (United States), Journal Name: Corrosion (Houston); (United States) Vol. 50:11; ISSN 0010-9312; ISSN CORRAK
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103 -- Metals & Alloys-- Mechanical Properties
360105* -- Metals & Alloys-- Corrosion & Erosion
ALKALI METAL COMPOUNDS
ALLOYS
AUSTENITIC STEELS
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
CHROMIUM ALLOYS
CHROMIUM-NICKEL STEELS
COATINGS
CORROSION
CORROSION RESISTANT ALLOYS
CORROSIVE EFFECTS
CRACK PROPAGATION
HALIDES
HALOGEN COMPOUNDS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HIGH ALLOY STEELS
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
IRON ALLOYS
IRON BASE ALLOYS
KINETICS
MATERIALS
NICKEL ALLOYS
PROTECTIVE COATINGS
SODIUM CHLORIDES
SODIUM COMPOUNDS
STAINLESS STEEL-304
STAINLESS STEELS
STEEL-CR19NI10
STEELS
STRESS CORROSION