Effect of Nb on the hydrogen-induced cracking of high-strength low-alloy steel

Shiqi Zhang; Endian Fan; Jifang Wan; Jing Liu; Yunhua Huang; Xiaogang Li

doi:10.1016/j.corsci.2018.04.041

Effect of Nb on the hydrogen-induced cracking of high-strength low-alloy steel

Shiqi Zhang
, Endian Fan
, Jifang Wan
, Jing Liu
, Yunhua Huang^*
, Xiaogang Li

^*Corresponding author for this work

University of Science and Technology Beijing
Tsinghua University
Research Institute of Petroleum Exploration and Development
Wuhan University of Science and Technology

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

186 Scopus citations

Abstract

Hydrogen-induced cracking (HIC) susceptibility tests, hydrogen permeation tests and the electron backscatter diffraction (EBSD) measurements were used to study the effect of Nb on the HIC resistance of the high-strength low-alloy (HSLA) steel. The Nb microalloying significantly improved the HIC resistance and decreased the proportion of intergranular cracks through the hydrogen trapping effect and microstructure optimization. Dispersed nanometer-sized NbC precipitates effectively increased the number of irreversible traps, hindered hydrogen aggregation, and enhanced the resistance to crack initiation and propagation. Moreover, Nb optimized the microstructure by increasing the proportion of the low-angle grain boundaries (LAGBs), refining the prior austenite grain size, decreasing the dislocation density, and changing the distribution of Σ3 boundaries.

Original language	English
Pages (from-to)	83-96
Number of pages	14
Journal	Corrosion Science
Volume	139
DOIs	https://doi.org/10.1016/j.corsci.2018.04.041
State	Published - 15 Jul 2018
Externally published	Yes

Keywords

A. hydrogen-Induced cracking
B. hydrogen diffusion
C. Nb
D. high-strength low-alloy steel

Access to Document

10.1016/j.corsci.2018.04.041

Cite this

@article{2915213e93204ebbbc540bf63e7ff2ba,

title = "Effect of Nb on the hydrogen-induced cracking of high-strength low-alloy steel",

abstract = "Hydrogen-induced cracking (HIC) susceptibility tests, hydrogen permeation tests and the electron backscatter diffraction (EBSD) measurements were used to study the effect of Nb on the HIC resistance of the high-strength low-alloy (HSLA) steel. The Nb microalloying significantly improved the HIC resistance and decreased the proportion of intergranular cracks through the hydrogen trapping effect and microstructure optimization. Dispersed nanometer-sized NbC precipitates effectively increased the number of irreversible traps, hindered hydrogen aggregation, and enhanced the resistance to crack initiation and propagation. Moreover, Nb optimized the microstructure by increasing the proportion of the low-angle grain boundaries (LAGBs), refining the prior austenite grain size, decreasing the dislocation density, and changing the distribution of Σ3 boundaries.",

keywords = "A. hydrogen-Induced cracking, B. hydrogen diffusion, C. Nb, D. high-strength low-alloy steel",

author = "Shiqi Zhang and Endian Fan and Jifang Wan and Jing Liu and Yunhua Huang and Xiaogang Li",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

year = "2018",

month = jul,

day = "15",

doi = "10.1016/j.corsci.2018.04.041",

language = "英语",

volume = "139",

pages = "83--96",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Effect of Nb on the hydrogen-induced cracking of high-strength low-alloy steel

AU - Zhang, Shiqi

AU - Fan, Endian

AU - Wan, Jifang

AU - Liu, Jing

AU - Huang, Yunhua

AU - Li, Xiaogang

PY - 2018/7/15

Y1 - 2018/7/15

N2 - Hydrogen-induced cracking (HIC) susceptibility tests, hydrogen permeation tests and the electron backscatter diffraction (EBSD) measurements were used to study the effect of Nb on the HIC resistance of the high-strength low-alloy (HSLA) steel. The Nb microalloying significantly improved the HIC resistance and decreased the proportion of intergranular cracks through the hydrogen trapping effect and microstructure optimization. Dispersed nanometer-sized NbC precipitates effectively increased the number of irreversible traps, hindered hydrogen aggregation, and enhanced the resistance to crack initiation and propagation. Moreover, Nb optimized the microstructure by increasing the proportion of the low-angle grain boundaries (LAGBs), refining the prior austenite grain size, decreasing the dislocation density, and changing the distribution of Σ3 boundaries.

AB - Hydrogen-induced cracking (HIC) susceptibility tests, hydrogen permeation tests and the electron backscatter diffraction (EBSD) measurements were used to study the effect of Nb on the HIC resistance of the high-strength low-alloy (HSLA) steel. The Nb microalloying significantly improved the HIC resistance and decreased the proportion of intergranular cracks through the hydrogen trapping effect and microstructure optimization. Dispersed nanometer-sized NbC precipitates effectively increased the number of irreversible traps, hindered hydrogen aggregation, and enhanced the resistance to crack initiation and propagation. Moreover, Nb optimized the microstructure by increasing the proportion of the low-angle grain boundaries (LAGBs), refining the prior austenite grain size, decreasing the dislocation density, and changing the distribution of Σ3 boundaries.

KW - A. hydrogen-Induced cracking

KW - B. hydrogen diffusion

KW - C. Nb

KW - D. high-strength low-alloy steel

UR - https://www.scopus.com/pages/publications/85046707030

U2 - 10.1016/j.corsci.2018.04.041

DO - 10.1016/j.corsci.2018.04.041

M3 - 文章

AN - SCOPUS:85046707030

SN - 0010-938X

VL - 139

SP - 83

EP - 96

JO - Corrosion Science

JF - Corrosion Science

ER -

Effect of Nb on the hydrogen-induced cracking of high-strength low-alloy steel

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this