Published July 2021 | Version v1
Journal article Metadata-only

Effect of zinc injection on the electrochemical behavior and crack growth rate of a 316 L stainless steel in simulated primary coolant of pressurized water reactors

Creators

  • 1. Key Laboratory for Pressure Systems and Safety, School of Mechanical and Power Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237 (China)
  • 2. School of Nuclear Science and Engineering, School of Mechanical Engineering, Shanghai Jiao Tong University, No. 800 Dongchuan Road, Shanghai 200240 (China)

Description

Highlights: • Effect of Zn on the electrochemical and SCC behavior of 316 L stainless steel was studied in high-temperature water. • Zn improved the electrochemical corrosion parameters of steel and reduced its crack growth rate by >13 times. • The thickest oxide layer formed when steel was in contact with high-temperature pure water. • Changing the water chemistry significantly affected on the chemical composition of the formed oxide layers. Zinc was added to high-temperature borated and lithiated water and its effect on the oxide film formation, electrochemical behavior and crack growth rate of 316 L stainless steel was investigated. The actual concentrations of zinc in the coolant solution at 300 °C and 350 °C were determined by ICP-Mass spectrometry. Zinc improved the electrochemical corrosion parameters of steel and reduced the crack growth rate of the sample by more than 13 times. Zinc also reduced the thickness of the formed oxide layers on steel and modified the chemical composition of the oxides to a mainly zinc and iron rich spinel.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.matchar.2021.111177

Additional details

Identifiers

DOI
10.1016/j.matchar.2021.111177;
PII
S1044580321003077;

Publishing Information

Journal Title
Materials Characterization
Journal Volume
177
Journal Page Range
vp.
ISSN
1044-5803
CODEN
MACHEX

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
54034147
Subject category
S36: MATERIALS SCIENCE; S22: GENERAL STUDIES OF NUCLEAR REACTORS;
Descriptors DEI
BORATES; CHEMICAL COMPOSITION; COMPUTERIZED SIMULATION; COOLANTS; CRACK PROPAGATION; ELECTROCHEMICAL CORROSION; ELECTROCHEMISTRY; IRON; MASS SPECTROSCOPY; OXIDES; PRIMARY COOLANT CIRCUITS; PWR TYPE REACTORS; STAINLESS STEEL-316L; THICKNESS; THIN FILMS; WATER CHEMISTRY; ZINC
Descriptors DEC
ALLOYS; AUSTENITIC STEELS; BORON COMPOUNDS; CARBON ADDITIONS; CHALCOGENIDES; CHEMICAL REACTIONS; CHEMISTRY; CHROMIUM ALLOYS; CHROMIUM STEELS; CHROMIUM-MOLYBDENUM STEELS; CHROMIUM-NICKEL STEELS; CHROMIUM-NICKEL-MOLYBDENUM STEELS; COOLING SYSTEMS; CORROSION; CORROSION RESISTANT ALLOYS; DIMENSIONS; ELEMENTS; ENERGY SYSTEMS; ENRICHED URANIUM REACTORS; FILMS; HEAT RESISTANT MATERIALS; HEAT RESISTING ALLOYS; HIGH ALLOY STEELS; IRON ALLOYS; IRON BASE ALLOYS; LOW CARBON-HIGH ALLOY STEELS; MATERIALS; METALS; MOLYBDENUM ALLOYS; NICKEL ALLOYS; OXYGEN COMPOUNDS; POWER REACTORS; REACTOR COMPONENTS; REACTOR COOLING SYSTEMS; REACTORS; SIMULATION; SPECTROSCOPY; STAINLESS STEELS; STEEL-CR17NI12MO3-L; STEELS; THERMAL REACTORS; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENTS; WATER COOLED REACTORS; WATER MODERATED REACTORS

Optional Information

Copyright
Copyright (c) 2021 Elsevier Inc. All rights reserved.