Effect of Chromium Content on the Oxidation Behavior of Ni-Cr Model Alloys in Superheated Steam
| Autor: | Benoît Ter-Ovanessian, Fethi Hamdani, Hiroshi Abe, Bernard Normand, Yutaka Watanabe |
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| Přispěvatelé: | Biological Laboratory, Nihon University, Matériaux, ingénierie et science [Villeurbanne] (MATEIS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), KEK (High energy accelerator research organization) |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Chromium
Materials science 020209 energy Oxide chemistry.chemical_element Polishing Parabolic rates Synergetic effect 02 engineering and technology Hardened layers [SPI.MAT]Engineering Sciences [physics]/Materials chemistry.chemical_compound Nickel Scales (weighing instruments) Oxidation 0202 electrical engineering electronic engineering information engineering Weight gain measurements Oxidation resistance Superheated steam Structural material Metallurgy Scale (deposits) Metals and Alloys 021001 nanoscience & nanotechnology Condensed Matter Physics Chromium contents chemistry Mechanics of Materials Oxidation behaviors Degradation (geology) Mirror polishing 0210 nano-technology Layer (electronics) |
| Zdroj: | Metallurgical and Materials Transactions A Metallurgical and Materials Transactions A, Springer Verlag/ASM International, 2015, 46 (5), pp.2285-2293. ⟨10.1007/s11661-015-2786-7⟩ |
| ISSN: | 1073-5623 |
| DOI: | 10.1007/s11661-015-2786-7⟩ |
| Popis: | cited By 3; International audience; The present study investigated the oxidation behavior of Ni-xCr model alloys (14 ≤ x ≤ 30 wt pct) in steam at 973 K (700 °C), with particular emphasis on the influence of chromium content. Mirror polishing was employed to reduce the hardened layer, thereby avoiding the synergetic effect with dislocations in the subsurface. To elucidate the oxidation behavior, weight gain measurements and the meticulous characterization of the oxide scale were performed. The optimal Cr content (24 wt pct) corresponded to an oxidation rate slower than the parabolic rate due to the growth of a protective Cr oxide layer. Increasing the Cr content above the optimal amount led to the degradation of oxidation resistance. © 2015, The Minerals, Metals & Materials Society and ASM International. |
| Databáze: | OpenAIRE |
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