Corrosion resistance of self-growing TiC coating on SIMP steel in LBE at 600 °C

Q. -Q. Shi; W. Yan; W. Sha; W. Wang; Y. -Y. Shan; K. Yang

doi:10.1002/maco.201508727

Corrosion resistance of self-growing TiC coating on SIMP steel in LBE at 600 °C

Q. -Q. Shi, W. Yan, W. Sha, W. Wang, Y. -Y. Shan, K. Yang

School of Natural and Built Environment

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Abstract

SIMP steel was newly developed as a candidate structural material for the accelerator driven subcritical system. The serious decarburization of SIMP steel because of the high Si content was used to successfully form a self-growing TiC coating on the surface, after the Ti deposition as a first step. This TiC layer can effectively protect the surface from the static liquid lead-bismuth eutectic (LBE) corrosion at 600 °C up to 2000 h in the low oxygen LBE. However, in the oxygen saturated LBE, the TiC coating is oxidized into porous TiO2 after only 500 h and fails to protect. Therefore, the self-growing TiC coating is desired only when the oxygen content of LBE is strictly controlled on a low level.

Original language	English
Pages (from-to)	1204-1212
Number of pages	9
Journal	Materials and Corrosion
Volume	67
Issue number	11
Early online date	06 Jul 2016
DOIs	https://doi.org/10.1002/maco.201508727
Publication status	Published - 02 Nov 2016

Keywords

LBE
self-growing
SIMP steel
TiC coating

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Corrosion resistance of self-growing TiC coating on SIMP steel in LBE at 600 °C
© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is the peer reviewed version of this article, which has been published in final form at DOI: 10.1002/maco.201508727. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
Accepted author manuscript, 1.92 MBLicence: Unspecified

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title = "Corrosion resistance of self-growing TiC coating on SIMP steel in LBE at 600 °C",

abstract = "SIMP steel was newly developed as a candidate structural material for the accelerator driven subcritical system. The serious decarburization of SIMP steel because of the high Si content was used to successfully form a self-growing TiC coating on the surface, after the Ti deposition as a first step. This TiC layer can effectively protect the surface from the static liquid lead-bismuth eutectic (LBE) corrosion at 600 °C up to 2000 h in the low oxygen LBE. However, in the oxygen saturated LBE, the TiC coating is oxidized into porous TiO2 after only 500 h and fails to protect. Therefore, the self-growing TiC coating is desired only when the oxygen content of LBE is strictly controlled on a low level.",

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AU - Shi, Q. -Q.

AU - Yan, W.

AU - Sha, W.

AU - Wang, W.

AU - Shan, Y. -Y.

AU - Yang, K.

PY - 2016/11/2

Y1 - 2016/11/2

N2 - SIMP steel was newly developed as a candidate structural material for the accelerator driven subcritical system. The serious decarburization of SIMP steel because of the high Si content was used to successfully form a self-growing TiC coating on the surface, after the Ti deposition as a first step. This TiC layer can effectively protect the surface from the static liquid lead-bismuth eutectic (LBE) corrosion at 600 °C up to 2000 h in the low oxygen LBE. However, in the oxygen saturated LBE, the TiC coating is oxidized into porous TiO2 after only 500 h and fails to protect. Therefore, the self-growing TiC coating is desired only when the oxygen content of LBE is strictly controlled on a low level.

AB - SIMP steel was newly developed as a candidate structural material for the accelerator driven subcritical system. The serious decarburization of SIMP steel because of the high Si content was used to successfully form a self-growing TiC coating on the surface, after the Ti deposition as a first step. This TiC layer can effectively protect the surface from the static liquid lead-bismuth eutectic (LBE) corrosion at 600 °C up to 2000 h in the low oxygen LBE. However, in the oxygen saturated LBE, the TiC coating is oxidized into porous TiO2 after only 500 h and fails to protect. Therefore, the self-growing TiC coating is desired only when the oxygen content of LBE is strictly controlled on a low level.

KW - LBE

KW - self-growing

KW - SIMP steel

KW - TiC coating

U2 - 10.1002/maco.201508727

DO - 10.1002/maco.201508727

M3 - Article

SN - 1521-4176

VL - 67

SP - 1204

EP - 1212

JO - Materials and Corrosion

JF - Materials and Corrosion

IS - 11

ER -

Corrosion resistance of self-growing TiC coating on SIMP steel in LBE at 600 °C

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