Intergranular corrosion behavior of low-chromium ferritic stainless steel without Cr-carbide precipitation after aging

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Intergranular corrosion behavior of low-chromium ferritic stainless steel without Cr-carbide precipitation after aging. / Hu, Shuai; Mao, Yaozong; Liu, Xianbin; Han, En-Hou; Hänninen, Hannu.

In: Corrosion Science, Vol. 166, 108420, 15.04.2020.

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@article{832490dcb82741dd895bc1931cb3a7e6,
title = "Intergranular corrosion behavior of low-chromium ferritic stainless steel without Cr-carbide precipitation after aging",
abstract = "The intergranular corrosion behavior of the low-chromium ferritic stainless steel without Cr-carbide precipitation was investigated by the methods of qualitative and quantitative corrosion testing and microstructural analysis. The intergranular corrosion susceptibility of the aged stainless steels can be attributed to the Cr-depleted zone formation induced by Cr-C co-segregation to grain boundaries before Cr-carbide nucleation. The change of intergranular corrosion morphology after aging at 450 °C from discontinuous (aged for 2 h) to semi-continuous (aged for 20 h) and to continuous (aged for 200 h) is discussed in detail.",
keywords = "Ferritic stainless steel, Intergranular corrosion, Segregation, Cr-Carbide, Aging",
author = "Shuai Hu and Yaozong Mao and Xianbin Liu and En-Hou Han and Hannu H{\"a}nninen",
year = "2020",
month = "4",
day = "15",
doi = "10.1016/j.corsci.2019.108420",
language = "English",
volume = "166",
journal = "Corrosion Science",
issn = "0010-938X",
publisher = "Elsevier Limited",

}

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TY - JOUR

T1 - Intergranular corrosion behavior of low-chromium ferritic stainless steel without Cr-carbide precipitation after aging

AU - Hu, Shuai

AU - Mao, Yaozong

AU - Liu, Xianbin

AU - Han, En-Hou

AU - Hänninen, Hannu

PY - 2020/4/15

Y1 - 2020/4/15

N2 - The intergranular corrosion behavior of the low-chromium ferritic stainless steel without Cr-carbide precipitation was investigated by the methods of qualitative and quantitative corrosion testing and microstructural analysis. The intergranular corrosion susceptibility of the aged stainless steels can be attributed to the Cr-depleted zone formation induced by Cr-C co-segregation to grain boundaries before Cr-carbide nucleation. The change of intergranular corrosion morphology after aging at 450 °C from discontinuous (aged for 2 h) to semi-continuous (aged for 20 h) and to continuous (aged for 200 h) is discussed in detail.

AB - The intergranular corrosion behavior of the low-chromium ferritic stainless steel without Cr-carbide precipitation was investigated by the methods of qualitative and quantitative corrosion testing and microstructural analysis. The intergranular corrosion susceptibility of the aged stainless steels can be attributed to the Cr-depleted zone formation induced by Cr-C co-segregation to grain boundaries before Cr-carbide nucleation. The change of intergranular corrosion morphology after aging at 450 °C from discontinuous (aged for 2 h) to semi-continuous (aged for 20 h) and to continuous (aged for 200 h) is discussed in detail.

KW - Ferritic stainless steel

KW - Intergranular corrosion

KW - Segregation

KW - Cr-Carbide

KW - Aging

UR - http://www.scopus.com/inward/record.url?scp=85077758416&partnerID=8YFLogxK

U2 - 10.1016/j.corsci.2019.108420

DO - 10.1016/j.corsci.2019.108420

M3 - Article

VL - 166

JO - Corrosion Science

JF - Corrosion Science

SN - 0010-938X

M1 - 108420

ER -

ID: 40180191