H2so4 corrosion of API5L-X52 pipeline steel: Thermal diffusivity and microstructure

G. Peña-Rodríguez; C. Angeles-Chávez; O. Flores-Macías; E. Marín; R. A.Muñoz Hernández; A. Calderón

doi:10.1051/jp4:2005125051

H₂so₄ corrosion of API5L-X52 pipeline steel: Thermal diffusivity and microstructure

G. Peña-Rodríguez, C. Angeles-Chávez, O. Flores-Macías, E. Marín, R. A.Muñoz Hernández, A. Calderón

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

1 Scopus citations

Abstract

The effect of corrosion by H₂SO₄ on the values of room temperature thermal diffusivity (α) and the microstructure of API5L-X52 pipeline steel are studied. The samples were exposed for 3, 6, 9, 12 and 15 days in a corrosive solution in an atmosphere with relative humidity of 57.16% in average and at temperature of 23.6°C. The α values were measured by the photoacoustic technique in a heat transmission configuration. Our results show a α decrease with the corrosion time (t), with a behavior described by an exponentially decreasing curve. Microestructural study on the samples revealed the appearance of irregular surfaces with corroded grain frontiers, porosity and fractures of micrometer size as a consequence of corrosion, as well as a presence of phases mainly composed by tetra hydrated iron and manganese sulphates. The decreasing evolution of α vs t show the activity-passivity behavior in the corrosion process.

Original language	English
Pages (from-to)	217-219
Number of pages	3
Journal	Journal De Physique. IV : JP
Volume	125
DOIs	https://doi.org/10.1051/jp4:2005125051
State	Published - 2005
Externally published	Yes
Event	13th ICPPP International Conference on Photoacoustic and PhotothermalPhenomena - Rio de Janeiro, Brazil Duration: 5 Jul 2004 → 8 Jul 2004

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title = "H2so4 corrosion of API5L-X52 pipeline steel: Thermal diffusivity and microstructure",

abstract = "The effect of corrosion by H2SO4 on the values of room temperature thermal diffusivity (α) and the microstructure of API5L-X52 pipeline steel are studied. The samples were exposed for 3, 6, 9, 12 and 15 days in a corrosive solution in an atmosphere with relative humidity of 57.16% in average and at temperature of 23.6°C. The α values were measured by the photoacoustic technique in a heat transmission configuration. Our results show a α decrease with the corrosion time (t), with a behavior described by an exponentially decreasing curve. Microestructural study on the samples revealed the appearance of irregular surfaces with corroded grain frontiers, porosity and fractures of micrometer size as a consequence of corrosion, as well as a presence of phases mainly composed by tetra hydrated iron and manganese sulphates. The decreasing evolution of α vs t show the activity-passivity behavior in the corrosion process.",

author = "G. Pe{\~n}a-Rodr{\'i}guez and C. Angeles-Ch{\'a}vez and O. Flores-Mac{\'i}as and E. Mar{\'i}n and Hern{\'a}ndez, {R. A.Mu{\~n}oz} and A. Calder{\'o}n",

year = "2005",

doi = "10.1051/jp4:2005125051",

language = "Ingl{\'e}s",

volume = "125",

pages = "217--219",

journal = "Journal De Physique. IV : JP",

issn = "1155-4339",

publisher = "EDP Sciences",

note = "13th ICPPP International Conference on Photoacoustic and PhotothermalPhenomena ; Conference date: 05-07-2004 Through 08-07-2004",

}

TY - JOUR

T1 - H2so4 corrosion of API5L-X52 pipeline steel

T2 - 13th ICPPP International Conference on Photoacoustic and PhotothermalPhenomena

AU - Peña-Rodríguez, G.

AU - Angeles-Chávez, C.

AU - Flores-Macías, O.

AU - Marín, E.

AU - Hernández, R. A.Muñoz

AU - Calderón, A.

PY - 2005

Y1 - 2005

N2 - The effect of corrosion by H2SO4 on the values of room temperature thermal diffusivity (α) and the microstructure of API5L-X52 pipeline steel are studied. The samples were exposed for 3, 6, 9, 12 and 15 days in a corrosive solution in an atmosphere with relative humidity of 57.16% in average and at temperature of 23.6°C. The α values were measured by the photoacoustic technique in a heat transmission configuration. Our results show a α decrease with the corrosion time (t), with a behavior described by an exponentially decreasing curve. Microestructural study on the samples revealed the appearance of irregular surfaces with corroded grain frontiers, porosity and fractures of micrometer size as a consequence of corrosion, as well as a presence of phases mainly composed by tetra hydrated iron and manganese sulphates. The decreasing evolution of α vs t show the activity-passivity behavior in the corrosion process.

AB - The effect of corrosion by H2SO4 on the values of room temperature thermal diffusivity (α) and the microstructure of API5L-X52 pipeline steel are studied. The samples were exposed for 3, 6, 9, 12 and 15 days in a corrosive solution in an atmosphere with relative humidity of 57.16% in average and at temperature of 23.6°C. The α values were measured by the photoacoustic technique in a heat transmission configuration. Our results show a α decrease with the corrosion time (t), with a behavior described by an exponentially decreasing curve. Microestructural study on the samples revealed the appearance of irregular surfaces with corroded grain frontiers, porosity and fractures of micrometer size as a consequence of corrosion, as well as a presence of phases mainly composed by tetra hydrated iron and manganese sulphates. The decreasing evolution of α vs t show the activity-passivity behavior in the corrosion process.

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U2 - 10.1051/jp4:2005125051

DO - 10.1051/jp4:2005125051

M3 - Artículo de la conferencia

AN - SCOPUS:33645051758

SN - 1155-4339

VL - 125

SP - 217

EP - 219

JO - Journal De Physique. IV : JP

JF - Journal De Physique. IV : JP

Y2 - 5 July 2004 through 8 July 2004

ER -

H₂so₄ corrosion of API5L-X52 pipeline steel: Thermal diffusivity and microstructure

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