Tritium barrier development for austenitic stainless steel by its aluminizing in a lithium melt

Kalin, B. A.; Yakushin, V. L.; Fomina, E.P.

doi:10.1016/s0920-3796(98)00221-x

Cited by 15 publications

(4 citation statements)

References 7 publications

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“…Oftentimes, the aluminized layer will be made up of mixed FeAl, FeAl 2 , Fe 2 Al 3 , Fe 2 Al 5, FeAl 3 , and even Fe 4 Al 13 intermetallics [170]. Nickel, Cr, and mixed-aluminides are also formed [171,172]. The Al-rich intermetallics segregate to the surface and aluminized material will often have a mixed oxide scale that is rich in Al 2 O 3 [173,174].…”

Section: Aluminidesmentioning

confidence: 99%

Tritium Barriers and Tritium Diffusion in Fusion Reactors

Causey

Karnesky

Marchi

2012

Comprehensive Nuclear Materials

129

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Tritium and deuterium induce radiation in reactor materials and some radioactive tritium gas may be released. Most of the materials used in fusion reactors are metals that have relatively high permeabilities for tritium. The fusion community has been working on barriers to minimize tritium release. Unfortunately, most barrier materials work very well during laboratory experiments, but fail to meet requirements when placed in radiation environments.This chapter presents tritium permeation characteristics of various materials used in fusion reactors, including plasma-facing, structural, and barrier materials. The necessary parameters for tritium release calculations for various regions of a fusion reactor are given.

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Section: Aluminidesmentioning

confidence: 99%

Tritium Barriers and Tritium Diffusion in Fusion Reactors

Causey

Karnesky

Marchi

2012

Comprehensive Nuclear Materials

129

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“…Four kinds of steels are used in this study as substrates: austenitic SS316 (Fe-18Cr-12Ni-2.5Mo), ferritic SS430 (Fe-18Cr), reduced activation ferritic/martensitic 4 (RAFM) steels JLF-1 (Fe-9Cr-2W) and F82H (Fe-8Cr-2W, Heat No. 9753 42W-4).…”

Section: Deposition Of Er 2 O 3 Coatingmentioning

confidence: 99%

Deuterium permeation behavior of erbium oxide coating on austenitic, ferritic, and ferritic/martensitic steels

Chikada

Suzuki

Yang

et al. 2009

Fusion Engineering and Design

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Tritium permeation barrier is required in fusion blanket for reduction of loss of fuel and health hazard. In this study, deuterium permeation experiments have been 2 performed on four kinds of steels and erbium oxide coatings fabricated by a filtered arc deposition method. The permeation flux of uncoated samples shows diffusion-limited regime in the temperature range 573−723 K and the permeability is corresponding to literature data. The coated samples deposited at room temperature have been tested at 773 K. It is found that the coatings suppress the deuterium permeation to a close level in spite of different types of steel substrates. In addition, the exponent of the driving pressure slightly changes compared to the uncoated sample. However, the permeation regime is still near diffusion limited.

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“…Although different types of hydrogen barrier coatings such as oxide [ 4 , 5 , 6 ], silicon carbide [ 7 ], and iron aluminum alloys [ 8 ] have been reported, the application of conventional hydrogen barrier coatings is plagued by delamination and cracking, poor thermal stability, and strict production conditions [ 3 ]. Two-dimensional (2D) materials have been shown to offer good hydrogen resistance and corrosion protection [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

MXene Coatings: Novel Hydrogen Permeation Barriers for Pipe Steels

et al. 2021

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MXenes are a new class of two-dimensional (2D) materials with promising applications in many fields because of their layered structure and unique performance. In particular, the physical barrier properties of two-dimensional nanosheets make them suitable as barriers against hydrogen. Herein, MXene coatings were prepared on pipe steel by a simple spin-coating process with a colloidal suspension. The hydrogen resistance was evaluated by electrochemical hydrogen permeation tests and slow strain rate tests, and the corrosion resistance was assessed by potentiodynamic polarization. The results reveal that MXene coatings offer excellent hydrogen resistance and corrosion protection by forming a barrier against diffusion. Experimentally, the hydrogen permeability of the MXene coating is one third of the substrate, and the diffusion coefficient decreases as well. The mechanistic study indicates that the hydrogen resistance of the MXene coatings is affected by the number of spin-coated layers, while the concentration of the d-MXene colloidal suspension determines the thickness of a single coating. However, damage to the sample surface caused by the colloidal suspension that contains H+ and F− may limit the improvement of the hydrogen resistance. This paper reveals a new application of 2D MXene materials as a novel efficient barrier against hydrogen permeation and the subsequent alleviation of hydrogen embrittlement in the steel substrate.

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Tritium barrier development for austenitic stainless steel by its aluminizing in a lithium melt

Cited by 15 publications

References 7 publications

Tritium Barriers and Tritium Diffusion in Fusion Reactors

Tritium Barriers and Tritium Diffusion in Fusion Reactors

Deuterium permeation behavior of erbium oxide coating on austenitic, ferritic, and ferritic/martensitic steels

MXene Coatings: Novel Hydrogen Permeation Barriers for Pipe Steels

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