Hydrogen embrittlement of additively manufactured AlCoCrFeNi2.1 eutectic high-entropy alloy

被引：39

作者：

Wan, Di ^{[1
]}

Guan, Shuai ^{[2
]}

Wang, Dong ^{[1
]}

Lu, Xu ^{[1
]}

Ma, Jun ^{[1
]}

机构：

[1] Norwegian Univ Sci & Technol, Dept Mech & Ind Engn, Richard Birkelandsvei 2B, N-7491 Trondheim, Norway

[2] Hong Kong Polytech Univ, Adv Mfg Technol Res Ctr, Dept Ind & Syst Engn, Hung Hom,Kowloon, Hong Kong, Peoples R China

来源：

CORROSION SCIENCE | 2022年 / 195卷

关键词：

High-entropy alloy (HEA); Tensile test; Hydrogen embrittlement; Additive manufacturing; Electron backscattered diffraction (EBSD); Electron channeling contrast imaging (ECCI); AUSTENITIC STAINLESS-STEEL; MECHANICAL-PROPERTIES; HIGH-STRENGTH; ASSISTED CRACKING; MICROSTRUCTURE; DISLOCATION; PLASTICITY; DUCTILITY; FRACTURE; DEFORMATION;

D O I：

10.1016/j.corsci.2021.110007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

AlCoCrFeNi2.1 eutectic high-entropy alloy (HEA) was fabricated in as-cast and additively manufactured (AM) states. The hydrogen embrittlement susceptibility of both materials was investigated through in-situ uniaxial tensile test. Combining several advanced high-resolution scanning electron microscopy (SEM)-based techniques, the deformation and hydrogen embrittlement behavior have been intensively discussed. Interfacial cracking along both phase boundaries and grain boundaries are found to be responsible for the hydrogen-assisted fracture of this material. The cracking susceptibility has a dependence on the manufactured phase morphology. The orientation relationship between the phases and the misorientation between grains also have a significant impact on the hydrogen-induced cracks.

引用

页数：14

共 80 条

[1]

Barnoush A., 2009, MAT WERKST, P256

[2] Simultaneous Strength-Ductility Enhancement of a Nano-Lamellar AlCoCrFeNi2.1 Eutectic High Entropy Alloy by Cryo-Rolling and Annealing [J].

Bhattacharjee, T. ;

Wani, I. S. ;

Sheikh, S. ;

Clark, I. T. ;

Okawa, T. ;

Guo, S. ;

Bhattacharjee, P. P. ;

Tsuji, N. .

SCIENTIFIC REPORTS, 2018, 8

[3] HYDROGEN-ENHANCED LOCALIZED PLASTICITY - A MECHANISM FOR HYDROGEN-RELATED FRACTURE [J].

BIRNBAUM, HK ;

SOFRONIS, P .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1994, 176 (1-2) :191-202

[4] A combinatorial assessment of AlxCrCuFeNi2(0 < x < 1.5) complex concentrated alloys: Microstructure, microhardness, and magnetic properties [J].

Borkar, T. ;

Gwalani, B. ;

Choudhuri, D. ;

Mikler, C. V. ;

Yannetta, C. J. ;

Chen, X. ;

Ramanujan, R. V. ;

Styles, M. J. ;

Gibson, M. A. ;

Banerjee, R. .

ACTA MATERIALIA, 2016, 116 :63-76

[5] The use of high-entropy alloys in additive manufacturing [J].

Brif, Yevgeni ;

Thomas, Meurig ;

Todd, Iain .

SCRIPTA MATERIALIA, 2015, 99 :93-96

[6] Cavitation During Superplastic Forming [J].

Campbell, John .

MATERIALS, 2011, 4 (07) :1271-1286

[7] Additive Manufacturing of High-Entropy Alloys: A Review [J].

Chen, Shuying ;

Tong, Yang ;

Liaw, Peter K. .

ENTROPY, 2018, 20 (12)

[8] THE KINETICS AND MICROMECHANICS OF HYDROGEN-ASSISTED CRACKING IN FE-3 PCT SI SINGLE-CRYSTALS [J].

CHEN, X ;

GERBERICH, WW .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1991, 22 (01) :59-69

[9] The effect of TiC on the hydrogen induced ductility loss and trapping behavior of Fe-C-Ti alloys [J].

Depover, T. ;

Verbeken, K. .

CORROSION SCIENCE, 2016, 112 :308-326

[10] The synergistic action and interplay of hydrogen embrittlement mechanisms in steels and iron: Localized plasticity and decohesion [J].

Djukic, Milos B. ;

Bakic, Gordana M. ;

Zeravcic, Vera Sijacki ;

Sedmak, Aleksandar ;

Rajicic, Bratislav .

ENGINEERING FRACTURE MECHANICS, 2019, 216

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