Effect of cathodic polarisation on stress corrosion cracking behaviour of a Ni(Fe, Al)-maraging steel in artificial seawater

Tianliang Zhao; Shiqi Wang; Zhiyong Liu; Cuiwei Du; Xiaogang Li

doi:10.1016/j.corsci.2020.109176

Effect of cathodic polarisation on stress corrosion cracking behaviour of a Ni(Fe, Al)-maraging steel in artificial seawater

Tianliang Zhao
, Shiqi Wang
, Zhiyong Liu^*
, Cuiwei Du
, Xiaogang Li

^*Corresponding author for this work

University of Science and Technology Beijing
Shanghai University

Research output: Contribution to journal › Article › peer-review

55 Scopus citations

Abstract

The effect of cathodic polarisation on stress corrosion cracking (SCC) behaviour of peak-aged Ni(Fe, Al)-maraging steel in artificial seawater was investigated. The steel shows better compatibility of strength and hydrogen embrittlement (HE) resistance than reported 18Ni-type maraging steels when potential is above −850 mV. This advantage stems from the abundant and evenly dispersed Ni(Fe, Al) nanoprecipitates. SCC occurs above −850 mV in a transgranular/intergranular-mixed manner involving a mechanics-dominant-anodic-dissolution-promoted mechanism and below −850 mV in an intergranular manner along parent austenite grain boundaries involving HE. For interpreting the HE mechanism, a novel model is proposed based on hydrogen-weakening interatomic bonds.

Original language	English
Article number	109176
Journal	Corrosion Science
Volume	179
DOIs	https://doi.org/10.1016/j.corsci.2020.109176
State	Published - Feb 2021
Externally published	Yes

Keywords

Cathodic potential
Cracking
Hydrogen embrittlement
Intergranular
Maraging steel
Stress corrosion

Access to Document

10.1016/j.corsci.2020.109176

Cite this

@article{96556bcd84e344c88b788048c420f73e,

title = "Effect of cathodic polarisation on stress corrosion cracking behaviour of a Ni(Fe, Al)-maraging steel in artificial seawater",

abstract = "The effect of cathodic polarisation on stress corrosion cracking (SCC) behaviour of peak-aged Ni(Fe, Al)-maraging steel in artificial seawater was investigated. The steel shows better compatibility of strength and hydrogen embrittlement (HE) resistance than reported 18Ni-type maraging steels when potential is above −850 mV. This advantage stems from the abundant and evenly dispersed Ni(Fe, Al) nanoprecipitates. SCC occurs above −850 mV in a transgranular/intergranular-mixed manner involving a mechanics-dominant-anodic-dissolution-promoted mechanism and below −850 mV in an intergranular manner along parent austenite grain boundaries involving HE. For interpreting the HE mechanism, a novel model is proposed based on hydrogen-weakening interatomic bonds.",

keywords = "Cathodic potential, Cracking, Hydrogen embrittlement, Intergranular, Maraging steel, Stress corrosion",

author = "Tianliang Zhao and Shiqi Wang and Zhiyong Liu and Cuiwei Du and Xiaogang Li",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

year = "2021",

month = feb,

doi = "10.1016/j.corsci.2020.109176",

language = "英语",

volume = "179",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Effect of cathodic polarisation on stress corrosion cracking behaviour of a Ni(Fe, Al)-maraging steel in artificial seawater

AU - Zhao, Tianliang

AU - Wang, Shiqi

AU - Liu, Zhiyong

AU - Du, Cuiwei

AU - Li, Xiaogang

PY - 2021/2

Y1 - 2021/2

N2 - The effect of cathodic polarisation on stress corrosion cracking (SCC) behaviour of peak-aged Ni(Fe, Al)-maraging steel in artificial seawater was investigated. The steel shows better compatibility of strength and hydrogen embrittlement (HE) resistance than reported 18Ni-type maraging steels when potential is above −850 mV. This advantage stems from the abundant and evenly dispersed Ni(Fe, Al) nanoprecipitates. SCC occurs above −850 mV in a transgranular/intergranular-mixed manner involving a mechanics-dominant-anodic-dissolution-promoted mechanism and below −850 mV in an intergranular manner along parent austenite grain boundaries involving HE. For interpreting the HE mechanism, a novel model is proposed based on hydrogen-weakening interatomic bonds.

AB - The effect of cathodic polarisation on stress corrosion cracking (SCC) behaviour of peak-aged Ni(Fe, Al)-maraging steel in artificial seawater was investigated. The steel shows better compatibility of strength and hydrogen embrittlement (HE) resistance than reported 18Ni-type maraging steels when potential is above −850 mV. This advantage stems from the abundant and evenly dispersed Ni(Fe, Al) nanoprecipitates. SCC occurs above −850 mV in a transgranular/intergranular-mixed manner involving a mechanics-dominant-anodic-dissolution-promoted mechanism and below −850 mV in an intergranular manner along parent austenite grain boundaries involving HE. For interpreting the HE mechanism, a novel model is proposed based on hydrogen-weakening interatomic bonds.

KW - Cathodic potential

KW - Cracking

KW - Hydrogen embrittlement

KW - Intergranular

KW - Maraging steel

KW - Stress corrosion

UR - https://www.scopus.com/pages/publications/85097461154

U2 - 10.1016/j.corsci.2020.109176

DO - 10.1016/j.corsci.2020.109176

M3 - 文章

AN - SCOPUS:85097461154

SN - 0010-938X

VL - 179

JO - Corrosion Science

JF - Corrosion Science

M1 - 109176

ER -

Effect of cathodic polarisation on stress corrosion cracking behaviour of a Ni(Fe, Al)-maraging steel in artificial seawater

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this