Behavior of type 304 and type 316 austenitic stainless in 55% lithium bromide heavy brine environments

Journal Article · Mon Jan 31 23:00:00 EST 1994 · Corrosion (Houston); (United States)

DOI:https://doi.org/10.5006/1.3293501· OSTI ID:5092943

Itzhak, D; Elias, O ^[1]

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1. Ben-Gurion Univ., Beer-Sheva (Israel). Dept. of Materials Engineering

Cylindrical tensile specimens of AISI type 304 (UNS S30400) and type 316 (UNS S31600) stainless steels (SS) were tested under constant-load conditions in 55% lithium bromide (LiBr) heavy brines at temperatures of 120 C and 140 C. Elongation and open-circuit potential (OCP) were recorded during the tensile test. Potentiodynamic polarization measurements were conducted, and the failed surface fractures were examined by scanning electron microscopy. The tested SS were subjected to stress corrosion under the test environments. Sensitivity was affected strongly by pH values. In LiBr brine of pH = 11.6, the passivation processes were more effective than in brine of pH = 6 [approximately] 8. Because of effective passivation behavior in brine of pH = 11.6, lower values of [delta]l[sub 0] were measured, indicating lower dislocation relaxation processes and high resistance to stress corrosion cracking.

• OSTI ID: 5092943
• Journal Information: Corrosion (Houston); (United States), Journal Name: Corrosion (Houston); (United States) Vol. 50:2; ISSN 0010-9312; ISSN CORRAK
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320106 -- Energy Conservation
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& Utilization-- Building Equipment-- (1987-)
36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
ALKALI METAL COMPOUNDS
ALLOYS
AUSTENITIC STEELS
BROMIDES
BROMINE COMPOUNDS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CHROMIUM-NICKEL STEELS
CHROMIUM-NICKEL-MOLYBDENUM STEELS
CORROSION
CORROSION RESISTANT ALLOYS
CORROSIVE EFFECTS
EQUIPMENT
HALIDES
HALOGEN COMPOUNDS
HEAT RESIS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HIGH ALLOY STEELS
INTERGRANULAR CORROSION
IRON ALLOYS
IRON BASE ALLOYS
LITHIUM BROMIDES
LITHIUM COMPOUNDS
LITHIUM HALIDES
MACHINERY
MATERIALS
MOLYBDENUM ALLOYS
NICKEL ALLOYS
PASSIVATION
PH VALUE
REFRIGERATING MACHINERY
STAINLESS STEEL-304
STAINLESS STEEL-316
STAINLESS STEELS
STEEL-CR17NI12MO3
STEEL-CR19NI10
STEELS
STRESS CORROSION