Metallurgical and materials transactions. A, Physical metallurgy and materials science, 2015-05, Vol.46 (5), p.2285-2293
2015
Volltextzugriff (PDF)
Details
- Autor(en) / Beteiligte
- Titel
- Effect of Chromium Content on the Oxidation Behavior of Ni-Cr Model Alloys in Superheated Steam
- Ist Teil von
- Metallurgical and materials transactions. A, Physical metallurgy and materials science, 2015-05, Vol.46 (5), p.2285-2293
- Ort / Verlag
- Boston: Springer US
- Erscheinungsjahr
- 2015
- Quelle
- SpringerLink Journals
- Beschreibungen/Notizen
- The present study investigated the oxidation behavior of Ni- x Cr 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.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 1073-5623eISSN: 1543-1940DOI: 10.1007/s11661-015-2786-7Titel-ID: cdi_hal_primary_oai_HAL_hal_01804708v1
- Format
- –
- Schlagworte
- Alloys, Characterization and Evaluation of Materials, Chemistry and Materials Science, Chromium, Dislocations, Engineering Sciences, Materials, Materials Science, Metallic Materials, Nanotechnology, Nickel base alloys, Optimization, Oxidation, Oxidation resistance, Oxides, Physical metallurgy, Structural Materials, Studies, Surfaces and Interfaces, Thin Films