Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Localized Corrosion of Chromium-Containing Conventional and Multiprincipal Element Alloys in Methanol and Aqueous Chloride Environments

Journal Article · · Corrosion
DOI:https://doi.org/10.5006/4075· OSTI ID:1983341

The localized corrosion behavior of Type 304L stainless steel (UNS S30400), Alloy 625 (UNS N06625), and three experimental NiCoCrMo multiprincipal element alloys (MPEA), exposed to methanol/lithium chloride solutions with different water contents, is examined in this paper. Cyclic potentiodynamic polarization tests indicated that water increased the pitting and repassivation potentials and the critical temperature at which localized corrosion occurred in chloride solutions. The effect of water on repassivation potential in methanol-chloride solution depended on the chloride concentration and alloy content. At lower chloride concentration and higher alloy content, water had a greater inhibiting effect on repassivation potential, suggesting a competitive reaction between chloride and water on the metal surface in the pit. The localized corrosion resistance of the MPEAs followed the same trend as that of commercial stainless steels and Ni-base alloys in terms of the effect of alloying elements. The implications of these results on the mechanisms of localized corrosion are discussed.

Research Organization:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, Albany, OR (United States)
Sponsoring Organization:
USDOE
OSTI ID:
1983341
Journal Information:
Corrosion, Vol. 78, Issue 9; ISSN 0010-9312
Publisher:
NACE International
Country of Publication:
United States
Language:
English

References (45)

Methanol-Induced Axial Stress Corrosion Cracking in a Northern Canadian Liquids Pipeline conference September 2014
Stress Corrosion Cracking off Ti and Zr in HCl-Methanol Solutions journal February 1966
Effect of “Pure” Methanol on the Cracking of Titanium journal February 1969
Stress Corrosion Cracking of Ti-8Al-lMo-1V Alloy: Aqueous and Methanol Environments journal February 1971
Mechanisms of Stress Corrosion Cracking of Titanium-Aluminum Alloys in Methanol-HCl Solutions journal February 1973
Environmental Factors in Stress Corrosion Cracking and Anodic Polarization of Zirconium in Methanol-HCl Solutions journal July 1976
Electrochemical behaviour of iron in methanol and dimethylformamide solutions journal January 1978
Effect of Metallurgical Factors of Low Carbon Steel Sheets on Stress Corrosion Cracking in Methanol Solution journal September 1978
Corrosion Behavior of Metallic Materials in Organic Media Containing Hydrogen Chloride journal March 1981
Untersuchungen zum Aktiv/Passiv Übergang von nichtrostenden Chromnickelstählen in organisch wäßrigen Median Teil 2: Einfluß des Wassergehalts auf die aktive Auflösung und Passivierung journal April 1982
Pitting Behavior of Duplex 308L Stainless Steel in Methanol/Water/HCl Solutions journal February 1982
Pitting corrosion of stainless steel in water-organic solvent mixtures journal November 1983
The effects of water and chloride ions on the electrochemical behaviour of iron and 304l stainless steel in alcohols journal January 1985
Corrosion Behavior of Nickel in Methanol journal March 1986
The behaviour of iron and low alloy steels in anhydrous organic solvents—methanolic solutions journal January 1988
Stress-corrosion cracking of CMn steels in methanol-ammonia environments—I. Effects of environmental and mechanical variables journal July 1992
The stress corrosion cracking and hydrogen embrittlement of titanium in methanol-hydrochloric acid solutions journal May 1993
The effects of complexing agents on the corrosion of iron in an anhydrous methanol solution journal December 1993
The electrochemistry of iron in methanolic solutions and its relation to corrosion journal September 1995
Corrosion of iron in electrolytic anhydrous methanol solutions containing ferric chloride journal May 1995
Role of Methanol on Pitting of Type 316 Stainless Steel journal December 2005
The corrosion and electrochemical behaviour of pure aluminium in alkaline methanol solutions journal March 2007
Electrochemical Behavior of Various Kinds of Stainless Steels in a High-Temperature and High-Pressure Methanol Solution journal July 2008
Corrosion and passivity of metals in methanol solutions of electrolytes journal September 2008
Progress in corrosion science at atomic and nanometric scales journal June 2018
Perspective—Localized Corrosion: Passive Film Breakdown vs Pit Growth Stability journal January 2017
A general model for the repassivation potential as a function of multiple aqueous solution species journal July 2004
Computational materials design of a corrosion resistant high entropy alloy for harsh environments journal August 2018
Corrosion characteristics of high entropy alloys journal March 2015
Corrosion-Resistant High-Entropy Alloys: A Review journal February 2017
The effect of molybdenum on the corrosion behaviour of the high-entropy alloys Co1.5CrFeNi1.5Ti0.5Mox in aqueous environments journal August 2010
Effect of molybdenum content on the microstructure and corrosion behavior of FeCoCrNiMox high-entropy alloys journal June 2020
The corrosion behaviour of CoCrFeNi-x (x = Cu, Al, Sn) high entropy alloy systems in chloride solution journal August 2020
Clarifying the Applicability of PREN Equations: A Short Focused Review journal December 2020
Electrical Conductivity of Lithium Chloride, Lithium Bromide, and Lithium Iodide Electrolytes in Methanol, Water, and Their Binary Mixtures journal September 2019
Electrochemical methods for the determination of Pedeferri's diagram of stainless steel in chloride containing environment journal August 2018
Cobalt/Chromium Nanoparticles-Incorporated Carbon Nanofibers as Effective Nonprecious Catalyst for Methanol Electrooxidation in Alkaline Medium journal April 2016
Localized Corrosion: Passive Film Breakdown vs Pit Growth Stability: Part II. A Model for Critical Pitting Temperature journal January 2018
Localized Corrosion: Passive Film Breakdown vs. Pit Growth Stability: Part III. A Unifying Set of Principal Parameters and Criteria for Pit Stabilization and Salt Film Formation journal January 2018
Localized Corrosion: Passive Film Breakdown vs. Pit Growth Stability: Part IV. The Role of Salt Film in Pit Growth: A Mathematical Framework journal January 2019
Activation energy of metal dissolution in local pit environments journal December 2021
A general model for the repassivation potential as a function of multiple aqueous species. 2. Effect of oxyanions on localized corrosion of Fe–Ni–Cr–Mo–W–N alloys journal December 2008
Temperature as a Pitting Criterion journal January 1973
Temperature as a Crevice Corrosion Criterion journal November 1974
Effect of Alloying Additions on the Pitting Resistance of 18% Cr Austenitic Stainless Steel journal May 1974