A procedure for rapid studies of the metal oxidation kinetics at high temperatures

Chekhovskoi, V. Ya.; Tarasov, V. D.

doi:10.1134/s0020441208030287

Cited by 2 publications

(2 citation statements)

References 8 publications

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“…This process involves interdiffusion of Al 3+ and Mg 2+ ions into MgO and Al 2 O 3 . It is reported that MgAl 2 O 4 is hard and porous [23,24]. MgAl 2 O 4 may also nucleate and grow on the alloy-oxide interface via a direct reaction of Al and Mg with O 2 as shown by the following [25]:…”

Section: Thermodynamics Of Oxidationmentioning

confidence: 99%

“…On the other hand, contradicting results were observed when it involved a welded structure that previously experienced solidification process during welding. Moreover, the oxide layer that formed on Al below 400 ∘ C is amorphous and it is clearly investigated that the growth of the amorphous oxide follows an inverse logarithmic rate law [18,20,23]. In Cabrera and Mott theory, thin films grow at low temperatures predominantly by cation migration and influenced by potential accumulation across the growing film.…”

Section: Thermodynamics Of Oxidationmentioning

confidence: 99%

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Characterization of Oxide Growth on Surface of Al-Mg-Si Welded Joint

Jalar

Lah

Othman

et al. 2014

Advances in Materials Science and Engineering

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Al-Mg-Si (AA6061) Al alloy plates were joined by the method of gas metal arc welding using Al-5Mg (ER5356) filler metal and were subjected to the oxidation test in flowing air environment at600∘Cfrom 8 to 40 hours and the weight gain was measured. The characteristic of oxide grown on welded zone surface was examined by SEM/EDS, XRD, and XPS. Oxide was observed to grow on the fused metal surface suggesting the possibility of modifying the oxide chemistry under high temperature environment. It was found that the oxidation behavior of fused metal affected by the nature of their oxide growth and morphology, was influenced by their welding process and the difference in the chemical composition.

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Section: Thermodynamics Of Oxidationmentioning

confidence: 99%

Section: Thermodynamics Of Oxidationmentioning

confidence: 99%

Characterization of Oxide Growth on Surface of Al-Mg-Si Welded Joint

Jalar

Lah

Othman

et al. 2014

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

show abstract

A Review on Analysis of LWR Severe Accident

Zhang

Niu

Zhang

et al. 2015

Journal of Nuclear Engineering and Radiation Science

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A severe accident (SA) is defined as an incident involving melting of the nuclear reactor core and the release of fission products (FP) from the fuel and their associated risks. In the SA, the containment may fail, causing the public hazard of fission products released to the environment. This review elaborates the resolved issues of SAs under the condition of a hypothetical SA. SA research that has been performed over the years is briefly described, including various SA scenarios. The SA scenarios involve core melt scenarios from the beginning of core degradation to melt formation and relocation into the lower head and to the containment, the interactions of the molten corium with water and concrete, the behavior of fission products in- and ex-vessel, hydrogen-related phenomena, and all associated risks. The mitigation strategies that have been adopted in existing reactors and advanced light water reactors (ALWR) are also discussed. These mitigation measures can keep the reactor vessel or containment intact and terminate the SA progression. SA analysis codes are then summarized and divided into three categories, namely, systematic analysis codes, mechanism analysis codes, and single-function analysis codes. Next, the unresolved issues of SAs are proposed, including narrow gap cooling, melt chemical interactions, steam explosion loads, molten debris coolability, and iodine chemistry. Further experimental and theoretical research activities should be conducted to resolve these issues; consequently, some recommendations for further research work are also given in the last part of this review. This review aims to add to the knowledge and understanding of SA research in the past few decades and to benefit further research of SAs.

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A procedure for rapid studies of the metal oxidation kinetics at high temperatures

Cited by 2 publications

References 8 publications

Characterization of Oxide Growth on Surface of Al-Mg-Si Welded Joint

Characterization of Oxide Growth on Surface of Al-Mg-Si Welded Joint

A Review on Analysis of LWR Severe Accident

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