High-temperature oxidising environments are frequently encountered but the limited number of in situ techniques that can be implemented has hindered the monitoring possibilities and a better comprehension of the oxidation phenomenon. In this paper, the high-temperature oxidation behaviours of three alloys (AISI 316L, AISI 310 and HAYNES® HR-120®) were studied by using crystal microbalances. Two types of crystal were tested: quartz or gallium orthophosphate crystals. First the behaviour of thin sputtered deposited alloys on quartz slides was studied at 400 and 700°C under air oxidising conditions and compared to bulk samples. Kinetics measurements were performed on the three alloy films deposited on the resonators at 400 or 700°C: it was possible to measure very small mass variations associated with thin oxide formation between 5 and 180 nm of thickness. The crystal microbalance technique gives promising perspectives in understanding the high-temperature corrosion and scaling mechanisms and also for in situ monitoring.

High-temperature oxidation evaluation usingcrystal microbalance / M. Nicoli, F. Grosjean, R. Mingant, J. Kittel, M. Trueba, S.P.M. Trasatti, H. Perrot &, F. Ropital. - In: CORROSION ENGINEERING, SCIENCE AND TECHNOLOGY. - ISSN 1478-422X. - (2020 Feb 24). [Epub ahead of print] [10.1080/1478422X.2020.1732122]

High-temperature oxidation evaluation usingcrystal microbalance

M. Trueba;S.P.M. Trasatti;
2020

Abstract

High-temperature oxidising environments are frequently encountered but the limited number of in situ techniques that can be implemented has hindered the monitoring possibilities and a better comprehension of the oxidation phenomenon. In this paper, the high-temperature oxidation behaviours of three alloys (AISI 316L, AISI 310 and HAYNES® HR-120®) were studied by using crystal microbalances. Two types of crystal were tested: quartz or gallium orthophosphate crystals. First the behaviour of thin sputtered deposited alloys on quartz slides was studied at 400 and 700°C under air oxidising conditions and compared to bulk samples. Kinetics measurements were performed on the three alloy films deposited on the resonators at 400 or 700°C: it was possible to measure very small mass variations associated with thin oxide formation between 5 and 180 nm of thickness. The crystal microbalance technique gives promising perspectives in understanding the high-temperature corrosion and scaling mechanisms and also for in situ monitoring.
high-temperature corrosion; deposits; crystal; microbalance; alloys;; corrosion monitoring;
Settore ING-IND/22 - Scienza e Tecnologia dei Materiali
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/747230
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