Unexpected pitting inhibition of additively-manufactured austenitic stainless steel by electrochemical hydrogen-charging

被引：0

作者：

Wang, Mingyang ^{[1
]}

Tian, Xingda ^{[1
]}

Liu, Yong ^{[2
]}

Ding, Zhiyi ^{[1
]}

Hou, Juan ^{[1
]}

Chen, Aiying ^{[1
]}

机构：

[1] Univ Shanghai Sci & Technol, Sch Mat & Chem, Shanghai 200093, Peoples R China

[2] Nanchang Univ, Key Lab Light Weight & High Strength Struct Mat Ji, Nanchang 330031, Peoples R China

来源：

CORROSION SCIENCE | 2025年 / 243卷

基金：

中国国家自然科学基金;

关键词：

Austenitic stainless steel; Selective laser melting; Hydrogen-charging; Microstructure; Pitting; CORROSION-RESISTANCE; BEHAVIOR; CHLORIDE; MICROSTRUCTURE; DEFORMATION; PROPAGATION; MARTENSITE;

D O I：

10.1016/j.corsci.2024.112598

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Pitting of austenitic stainless steel (SS) is intensified under hydrogen environment, resulting in great uncertainty of safety. However, austenitic SS printed by selective laser melting (SLM) after electrochemical hydrogencharging manifests an unanticipatedly anti-pitting behavior. Pitting resistance is found in all the SLM samples after H-charging, while the original SLM and all the commercial SS samples are composed of corrosive pits on the surfaces. XRD, EBSD and TEM observations of SLM sample after H-charging reveal that nanotwins and epsilon-phase are newly formed interior of the cellular cells, which inhibit martensite transformation and enhance the formation of Cr oxides in passivation film.

引用

页数：11

共 50 条

[1] Unexpected Interface Corrosion and Sensitization Susceptibility in Additively Manufactured Austenitic Stainless Steel
Macatangay, D. A.
Thomas, S.
Birbilis, N.
Kelly, R. G.
CORROSION, 2018, 74 (02) : 153 - 157
[2] Influence of solidification structures on radiation-induced swelling in an additively-manufactured austenitic stainless steel
de Bellefon, G. Meric
Bertsch, K. M.
Chancey, M. R.
Wang, Y. Q.
Thoma, D. J.
JOURNAL OF NUCLEAR MATERIALS, 2019, 523 : 291 - 298
[3] Hydrogen embrittlement of additively manufactured austenitic stainless steel 316 L
Bertsch, K. M.
Nagao, A.
Rankouhi, B.
Kuehl, B.
Thoma, D. J.
CORROSION SCIENCE, 2021, 192
[4] Microstructures and mechanical behavior of the bimetallic additively-manufactured structure (BAMS) of austenitic stainless steel and Inconel 625
Ahsan, Md R. U.
Fan, Xuesong
Seo, Gi-Jeong
Ji, Changwook
Noakes, Mark
Nycz, Andrzej
Liaw, Peter K.
Kim, Duck Bong
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2021, 74 : 176 - 188
[5] Microstructures and mechanical behavior of the bimetallic additively-manufactured structure(BAMS) of austenitic stainless steel and Inconel 625
Md.R.U.Ahsan
Xuesong Fan
Gi-Jeong Seo
Changwook Ji
Mark Noakes
rzej Nycz
Peter K.Liaw
Duck Bong Kim
JournalofMaterialsScience&Technology, 2021, 74 (15) : 176 - 188
[6] ELECTROCHEMICAL STUDIES OF THE PITTING OF AUSTENITIC STAINLESS-STEEL
DAWSON, JL
FERREIRA, MGS
CORROSION SCIENCE, 1986, 26 (12) : 1009 - 1026
[7] Role of Hydrogen-Charging on Nucleation and Growth of Ductile Damage in Austenitic Stainless Steels
Maire, Eric
Grabon, Stanislas
Adrien, Jerome
Lorenzino, Pablo
Asanuma, Yuki
Takakuwa, Osamu
Matsunaga, Hisao
MATERIALS, 2019, 12 (09):
[8] Heat-treatment effects on a bimetallic additively-manufactured structure (BAMS) of the low-carbon steel and austenitic-stainless steel
Ahsan, Md. R. U.
Tanvir, A. N. M.
Seo, Gi-Jeong
Bates, Brian
Hawkins, Wayne
Lee, Chanho
Liaw, P. K.
Noakes, Mark
Nycz, Andrzej
Kim, Duck Bong
ADDITIVE MANUFACTURING, 2020, 32
[9] Non-oxide precipitates in additively manufactured austenitic stainless steel
Manas Vijay Upadhyay
Meriem Ben Haj Slama
Steve Gaudez
Nikhil Mohanan
Lluis Yedra
Simon Hallais
Eva Héripré
Alexandre Tanguy
Scientific Reports, 11
[10] Thermochemical post-processing of additively manufactured austenitic stainless steel
Funch, Cecilie, V
Somlo, Kinga
Christiansen, Thomas L.
Somers, Marcel A. J.
SURFACE & COATINGS TECHNOLOGY, 2022, 441

← 1 2 3 4 5 →