Compositional variation of hydrogen permeability in ferritic alloys and steels

Jung, P.

doi:10.1016/s0022-3115(96)00448-5

Cited by 23 publications

(9 citation statements)

References 19 publications

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“…The MANET alloys tend to have lower diffusivity of hydrogen and its isotopes than F82H-mod. Differences in permeability between these two alloys has been attributed to Cr content [29,30], however, a clear correlation of transport properties with Cr content cannot be established based on existing data [109]. At temperatures less than about 573 K the apparent diffusivity is significantly less than the exponential relationship extrapolated from higher temperature.…”

Section: < Figure 12 Here>mentioning

confidence: 99%

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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: < Figure 12 Here>mentioning

confidence: 99%

“…will occur [29,105,109,114,115]. With the 10,000 m 2 surface area, the daily permeation rate is 0.23 moles or 1.4 grams of tritium per day.…”

Section: Why Barriers Are Needed For Fusion Reactorsmentioning

confidence: 99%

Tritium Barriers and Tritium Diffusion in Fusion Reactors

Causey

Karnesky

Marchi

2012

Comprehensive Nuclear Materials

129

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“…The gas flux j through a metallic material depends on diffusion (Fick's law) and solubility of the gas (according to Sieverts law) and can be stated according to following correlation (Richardson law) [33]:…”

Section: Long-term Operation and Hydrogen Diffusionmentioning

confidence: 99%

“…Permeability data for some typical austenitic and ferritic steels can be found elsewhere [33,[35][36][37]. However, no permeability data for CROFER have been found that could reflect permeability of hydrogen in SOFC typical atmospheres thus data for CROFER is take for comparable ferritic chromium steel (P 0 = 2.44 × 10 -7 mol (m s Pa…”

Section: Long-term Operation and Hydrogen Diffusionmentioning

confidence: 99%

Planar High Temperature Heat Pipes for SOFC/SOEC Stack Applications

2014

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Targeting transient operation of high temperature solid oxide cell (SOC) systems this paper proposes an enhanced heat management mechanism using planar high temperature heat pipes that can be integrated into the SOC‐stack structure. Flat heat pipes with thicknesses down to 4 mm filled with liquid alkali metals for almost isothermal 2D heat spreading, even for intense heat transfer rates, are demonstrated. A new pathway towards a temperature gradient shrinking in SOC‐stacks without using large amounts of additional air‐cooling is shown. The paper will present latest development results on design concepts, size reduced fabrication and filling procedure. An experimental study demonstrates the heat spreading capabilities and power limitations of planar heat spreaders for high temperature applications as in SOEC/SOFC stacks.

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“…The growth of crack during SCC can be either intergranular (IG) [23][24] or trans-granular (TG) [25][26][27], depending on the alloy, its microstructure, and the environment. However, the crack follows a general macroscopic path that is always normal to the tensile component of stress.…”

Section: Stress Corrosion Crackingmentioning

confidence: 99%

Influence of dissolved hydrogen on the fatigue crack growth behaviour of AISI 4140 steel

Nagarajan

2014

International Journal of Fatigue

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Compositional variation of hydrogen permeability in ferritic alloys and steels

Cited by 23 publications

References 19 publications

Tritium Barriers and Tritium Diffusion in Fusion Reactors

Tritium Barriers and Tritium Diffusion in Fusion Reactors

Planar High Temperature Heat Pipes for SOFC/SOEC Stack Applications

Influence of dissolved hydrogen on the fatigue crack growth behaviour of AISI 4140 steel

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