2007
DOI: 10.1016/j.intermet.2006.02.002
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Effect of composition on hydrogen permeation in Fe–Al alloys

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Cited by 21 publications
(7 citation statements)
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“…Hydrogen diffusivity in iron-aluminides is lower than in pure Fe (Table 5) [144,146,147]. Electrochemical permeation tests [148][149][150] found that hydrogen diffusivity in Fe-Al alloys decreases with increasing Al content [146][147][148][149]151]. However, new experimental diffusivity data for Fe-Al alloys reported by [149] vary significantly from the older data, presumably due to experimental uncertainties, varying Al concentration, impurities and microstructural differences [142].…”
Section: Mechanism Of Hydrogen Ingressmentioning
confidence: 97%
“…Hydrogen diffusivity in iron-aluminides is lower than in pure Fe (Table 5) [144,146,147]. Electrochemical permeation tests [148][149][150] found that hydrogen diffusivity in Fe-Al alloys decreases with increasing Al content [146][147][148][149]151]. However, new experimental diffusivity data for Fe-Al alloys reported by [149] vary significantly from the older data, presumably due to experimental uncertainties, varying Al concentration, impurities and microstructural differences [142].…”
Section: Mechanism Of Hydrogen Ingressmentioning
confidence: 97%
“…The method of doping alloying elements adjust and control the structures and performance of TPB coatings. Prakash showed that increasing carbon and aluminum contents leads to decreased hydrogen diffusivity (increased PRF) [ 29 ]. At present, studies on beneficial alloying elements of aluminide coatings are mainly focused on rare earth elements such as Y, Ce and Hf, which can improve the wear, high temperature oxidation and corrosion resistance of aluminide coatings [ 26 ].…”
Section: Recent Advances In Hydrogen Permeation Barriersmentioning
confidence: 99%
“…The different phases of nickel hydroxide were initially proposed by Chen [12]. The β structure exhibits a space of 4.8 Å between layers, whereas the layer spacing in the α structure is 8.0 Å [13][14][15][16]. Region (B) of the voltammogram anodic sweep in Figure 1 is associated with the passivation layer formed by α-Ni(OH) 2 .…”
Section: Voltammetry Studymentioning
confidence: 99%