Effect of dissolved precursors on corrosion characteristics of Ni-based alloy Inconel 625, stainless steel 316L and titanium alloy TA2 in acidic and neutral supercritical water: A comparative study

Guanyu Jiang; Lu Liu; Donghai Xu; Huanteng Liu; Mingjun Wang; Jianqiao Yang

doi:10.1016/j.supflu.2024.106249

Effect of dissolved precursors on corrosion characteristics of Ni-based alloy Inconel 625, stainless steel 316L and titanium alloy TA2 in acidic and neutral supercritical water: A comparative study

Guanyu Jiang
, Lu Liu
, Donghai Xu
, Huanteng Liu
, Mingjun Wang
, Jianqiao Yang

School of Energy and Power Engineering

Xi'an Jiaotong University

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

9 Scopus citations

Abstract

This work investigated the corrosion characteristics of nickel-based alloy Inconel 625, stainless steel 316L (SS 316L), and commercial grade 2 titanium alloy (TA2) in ZrO(NO₃)₂-containing and ZrO(NO₃)₂/KOH-containing supercritical water (SCW) at 400 °C and 25 MPa. During ZrO(NO₃)₂-containing SCW exposure, Inconel 625 undergoes pitting and intergranular corrosion, while SS 316L and TA2 suffer uniform corrosion. Based on corrosion rate and metal oxide stability, the corrosion resistance follows an order of TA2 > Inconel 625 > SS 316L. The addition of KOH reduces the intergranular corrosion sensitivity of Inconel 625, and leads to different oxide distribution of SS 316L. The thick TiO₂ oxide layer mixed with ZrO₂ formed in ZrO(NO₃)₂/KOH-containing SCW enables TA2 to exhibit superior corrosion resistance than Inconel 625 and SS 316L.

Original language	English
Article number	106249
Journal	Journal of Supercritical Fluids
Volume	209
DOIs	https://doi.org/10.1016/j.supflu.2024.106249
State	Published - Jul 2024

Keywords

Corrosion resistance
Intergranular corrosion
Metal oxides
Supercritical water

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10.1016/j.supflu.2024.106249

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@article{901ee82fefdf4189ab56251b085547d1,

title = "Effect of dissolved precursors on corrosion characteristics of Ni-based alloy Inconel 625, stainless steel 316L and titanium alloy TA2 in acidic and neutral supercritical water: A comparative study",

abstract = "This work investigated the corrosion characteristics of nickel-based alloy Inconel 625, stainless steel 316L (SS 316L), and commercial grade 2 titanium alloy (TA2) in ZrO(NO3)2-containing and ZrO(NO3)2/KOH-containing supercritical water (SCW) at 400 °C and 25 MPa. During ZrO(NO3)2-containing SCW exposure, Inconel 625 undergoes pitting and intergranular corrosion, while SS 316L and TA2 suffer uniform corrosion. Based on corrosion rate and metal oxide stability, the corrosion resistance follows an order of TA2 > Inconel 625 > SS 316L. The addition of KOH reduces the intergranular corrosion sensitivity of Inconel 625, and leads to different oxide distribution of SS 316L. The thick TiO2 oxide layer mixed with ZrO2 formed in ZrO(NO3)2/KOH-containing SCW enables TA2 to exhibit superior corrosion resistance than Inconel 625 and SS 316L.",

keywords = "Corrosion resistance, Intergranular corrosion, Metal oxides, Supercritical water",

author = "Guanyu Jiang and Lu Liu and Donghai Xu and Huanteng Liu and Mingjun Wang and Jianqiao Yang",

note = "Publisher Copyright: {\textcopyright} 2024 Elsevier B.V.",

year = "2024",

month = jul,

doi = "10.1016/j.supflu.2024.106249",

language = "英语",

volume = "209",

journal = "Journal of Supercritical Fluids",

issn = "0896-8446",

publisher = "Elsevier B.V.",

}

Effect of dissolved precursors on corrosion characteristics of Ni-based alloy Inconel 625, stainless steel 316L and titanium alloy TA2 in acidic and neutral supercritical water: A comparative study. / Jiang, Guanyu; Liu, Lu; Xu, Donghai et al.
In: Journal of Supercritical Fluids, Vol. 209, 106249, 07.2024.

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

TY - JOUR

T1 - Effect of dissolved precursors on corrosion characteristics of Ni-based alloy Inconel 625, stainless steel 316L and titanium alloy TA2 in acidic and neutral supercritical water

T2 - A comparative study

AU - Jiang, Guanyu

AU - Liu, Lu

AU - Xu, Donghai

AU - Liu, Huanteng

AU - Wang, Mingjun

AU - Yang, Jianqiao

PY - 2024/7

Y1 - 2024/7

N2 - This work investigated the corrosion characteristics of nickel-based alloy Inconel 625, stainless steel 316L (SS 316L), and commercial grade 2 titanium alloy (TA2) in ZrO(NO3)2-containing and ZrO(NO3)2/KOH-containing supercritical water (SCW) at 400 °C and 25 MPa. During ZrO(NO3)2-containing SCW exposure, Inconel 625 undergoes pitting and intergranular corrosion, while SS 316L and TA2 suffer uniform corrosion. Based on corrosion rate and metal oxide stability, the corrosion resistance follows an order of TA2 > Inconel 625 > SS 316L. The addition of KOH reduces the intergranular corrosion sensitivity of Inconel 625, and leads to different oxide distribution of SS 316L. The thick TiO2 oxide layer mixed with ZrO2 formed in ZrO(NO3)2/KOH-containing SCW enables TA2 to exhibit superior corrosion resistance than Inconel 625 and SS 316L.

AB - This work investigated the corrosion characteristics of nickel-based alloy Inconel 625, stainless steel 316L (SS 316L), and commercial grade 2 titanium alloy (TA2) in ZrO(NO3)2-containing and ZrO(NO3)2/KOH-containing supercritical water (SCW) at 400 °C and 25 MPa. During ZrO(NO3)2-containing SCW exposure, Inconel 625 undergoes pitting and intergranular corrosion, while SS 316L and TA2 suffer uniform corrosion. Based on corrosion rate and metal oxide stability, the corrosion resistance follows an order of TA2 > Inconel 625 > SS 316L. The addition of KOH reduces the intergranular corrosion sensitivity of Inconel 625, and leads to different oxide distribution of SS 316L. The thick TiO2 oxide layer mixed with ZrO2 formed in ZrO(NO3)2/KOH-containing SCW enables TA2 to exhibit superior corrosion resistance than Inconel 625 and SS 316L.

KW - Corrosion resistance

KW - Intergranular corrosion

KW - Metal oxides

KW - Supercritical water

UR - https://www.scopus.com/pages/publications/85188441517

U2 - 10.1016/j.supflu.2024.106249

DO - 10.1016/j.supflu.2024.106249

M3 - 文章

AN - SCOPUS:85188441517

SN - 0896-8446

VL - 209

JO - Journal of Supercritical Fluids

JF - Journal of Supercritical Fluids

M1 - 106249

ER -

Effect of dissolved precursors on corrosion characteristics of Ni-based alloy Inconel 625, stainless steel 316L and titanium alloy TA2 in acidic and neutral supercritical water: A comparative study

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Keywords

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