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Showing 1 to 7 of 7 for “"oxygen potential"”.
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Effect of oxygen potential on high temperature crack growth in alloy 617
The effect of oxygen partial pressure on crack growth rates in Alloy 617 has been studied using both static and fatigue loading at 650°C. Tests were conducted at a constant stress intensity factor, K, for static loading conditions or constant AK for fatigue loading using a direct current potential …
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Water splitting for hydrogen and syngas production over a novel bi-layer perovskite membrane
… technologies for CO2 mitigation due to its potential to enhance the efficiency and performance in various industrial applications. The perovskite MIEC membranes have high oxygen permeability and 100% oxygen selectivity. The goal of this study is to develop a bi-layer MIEC membrane …
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Behavior of alloy 617 at 650°C in low oxygen pressure environments
The behavior of alloy 617 at 650°C in low oxygen partial pressure environments has been studied under static loading. Of particular interest was the crack growth rate in these conditions. For that, tests were conducted at a constant stress intensity factor of 49.45 MPa'm (45 ksidinch) using a …
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Experimental simulation of crevice corrosion of a functionally graded composite system of F91 and Fe-12Cr-2Si exposed to high-temperature lead-bismuth eutectic coolant
… within the crevice due to a drastically reduced oxygen potential and low pH. Furthermore, in a liquid metal environment, the reducing conditions combined with typically high solubilities of alloy components in the liquid metal can result in severe, localized crevice corrosion that surpasses that …
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Structural and thermodynamic properties of sodium actinide ternary oxides
In the potential event of a clad breach in a Sodium-cooled Fast Reactor (SFR), the sodium metallic coolant could come into contact with the (U,Pu,Np)$O_2$ nuclear fuel. The reaction products are numerous, but there is little knowledge of their structural and thermodynamic properties. Under the …
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Stoffaustausch und Stoffanreicherung bei zweiphasigen Gegenstromverfahren
… be expressed by the difference of the chemical potentials µ or by the difference of the activities a. For electro-chemical processes the difference of the electro-chemical potentials epsilon was used, which have in addition to µ an additive term with the load number z, the Faraday – constant F …
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Where three oceans meet : the Algulhas retroflection region
… relative to 2400 dbar, which lies below the deep oxygen minimum emanating from the South Indian Ocean, and above the North Atlantic Deep Water salinity maximum. The current retroflected in two distinct branches in 1985, with a cold ring and a partially isolated warm recirculation cell found …