The effect of cooling rate-induced microstructural changes on CO2 corrosion of low alloy steel

Kapil K. Gupta; Saber Haratian; Shivangi Gupta; Oleg V. Mishin; Rajan Ambat

doi:10.1016/j.corsci.2022.110769

The effect of cooling rate-induced microstructural changes on CO₂ corrosion of low alloy steel

Kapil K. Gupta^*, Saber Haratian, Shivangi Gupta, Oleg V. Mishin, Rajan Ambat

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › Research › peer-review

117 Downloads (Pure)

Abstract

The effect of cooling rate-induced microstructural changes on corrosion resistance in a CO₂-saturated 3.5 wt% NaCl solution have been explored for the API L80–1Cr steel. The corroded layer majorly contains siderite, akagenite, and undissolved cementite. The amount of FeCO₃ in this layer is larger for the water-cooled sample with a martensitic structure, whereas the furnace-cooled sample with a ferritic-pearlitic structure contains a larger amount of akagenite. The retained cementite and the microrough surface of the furnace-cooled sample provide greater anchoring to the scale. Comparing samples cooled at different rates, the furnace-cooled condition appears to provide better CO₂ corrosion resistance.

Original language	English
Article number	110769
Journal	Corrosion Science
Volume	209
Number of pages	16
ISSN	0010-938X
DOIs	https://doi.org/10.1016/j.corsci.2022.110769
Publication status	Published - 2022

Keywords

CO2 corrosion
Electrochemical impedance spectroscopy
Electron microscopy
Low alloy steel
Microstructure

Access to Document

10.1016/j.corsci.2022.110769Licence: CC BY

FulltextFinal published version, 1.99 MBLicence: CC BY

OpenUrl availability

Full text

Cite this

@article{2d64bb70b96d408999978cf1d5b752ae,

title = "The effect of cooling rate-induced microstructural changes on CO2 corrosion of low alloy steel",

abstract = "The effect of cooling rate-induced microstructural changes on corrosion resistance in a CO2-saturated 3.5 wt% NaCl solution have been explored for the API L80–1Cr steel. The corroded layer majorly contains siderite, akagenite, and undissolved cementite. The amount of FeCO3 in this layer is larger for the water-cooled sample with a martensitic structure, whereas the furnace-cooled sample with a ferritic-pearlitic structure contains a larger amount of akagenite. The retained cementite and the microrough surface of the furnace-cooled sample provide greater anchoring to the scale. Comparing samples cooled at different rates, the furnace-cooled condition appears to provide better CO2 corrosion resistance.",

keywords = "CO2 corrosion, Electrochemical impedance spectroscopy, Electron microscopy, Low alloy steel, Microstructure",

author = "Gupta, {Kapil K.} and Saber Haratian and Shivangi Gupta and Mishin, {Oleg V.} and Rajan Ambat",

year = "2022",

doi = "10.1016/j.corsci.2022.110769",

language = "English",

volume = "209",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Pergamon Press",

}

TY - JOUR

T1 - The effect of cooling rate-induced microstructural changes on CO2 corrosion of low alloy steel

AU - Gupta, Kapil K.

AU - Haratian, Saber

AU - Gupta, Shivangi

AU - Mishin, Oleg V.

AU - Ambat, Rajan

PY - 2022

Y1 - 2022

N2 - The effect of cooling rate-induced microstructural changes on corrosion resistance in a CO2-saturated 3.5 wt% NaCl solution have been explored for the API L80–1Cr steel. The corroded layer majorly contains siderite, akagenite, and undissolved cementite. The amount of FeCO3 in this layer is larger for the water-cooled sample with a martensitic structure, whereas the furnace-cooled sample with a ferritic-pearlitic structure contains a larger amount of akagenite. The retained cementite and the microrough surface of the furnace-cooled sample provide greater anchoring to the scale. Comparing samples cooled at different rates, the furnace-cooled condition appears to provide better CO2 corrosion resistance.

AB - The effect of cooling rate-induced microstructural changes on corrosion resistance in a CO2-saturated 3.5 wt% NaCl solution have been explored for the API L80–1Cr steel. The corroded layer majorly contains siderite, akagenite, and undissolved cementite. The amount of FeCO3 in this layer is larger for the water-cooled sample with a martensitic structure, whereas the furnace-cooled sample with a ferritic-pearlitic structure contains a larger amount of akagenite. The retained cementite and the microrough surface of the furnace-cooled sample provide greater anchoring to the scale. Comparing samples cooled at different rates, the furnace-cooled condition appears to provide better CO2 corrosion resistance.

KW - CO2 corrosion

KW - Electrochemical impedance spectroscopy

KW - Electron microscopy

KW - Low alloy steel

KW - Microstructure

U2 - 10.1016/j.corsci.2022.110769

DO - 10.1016/j.corsci.2022.110769

M3 - Journal article

SN - 0010-938X

VL - 209

JO - Corrosion Science

JF - Corrosion Science

M1 - 110769

ER -