Mechanical properties and adhesion of oxide films examined by a solid particle impact method at high temperature corrosive environments

Oka, Y.; Mukai, Yasuhiro; Tsumura, Toshinori

doi:10.1016/j.wear.2004.04.012

Cited by 9 publications

(6 citation statements)

References 12 publications

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“…So the relation sometimes mentioned in the literature ( [8,10,11,12] for example) must be considered with caution because they strongly depend on the test conditions, especially in steam environments.…”

Section: Resultsmentioning

confidence: 99%

Comparison between Current Methods for Measurement of High Temperature Corrosion of Boiler Steels in Steam Environments

Lépingle

Louis

Allué³

2008

MSF

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Thirteen boiler steels were exposed in pure water vapour at 650°C for 32 weeks (5,376h). To assess their oxidation kinetics, four current discontinuous measurement methods were used. The results show that, for the T91 steel, the different investigated methods give similar results; for the other steels, the evaluation of corrosion rates depends on the method used. Thus their lifetime prediction is often over- or undervalued. This is mainly the case for steels with scales that spall off and/or steels with a non-uniform scale growth (localised oxide nodules for a rather long exposure time). This is particularly true in the steam environments which lead to oxidation processes with oxide scales different from those in dry air or oxygen. So the use of steam oxidation data and/or relations among them has to be done with caution because it can lead to a wrong prediction of performance.

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Section: Resultsmentioning

confidence: 99%

Comparison between Current Methods for Measurement of High Temperature Corrosion of Boiler Steels in Steam Environments

Lépingle

Louis

Allué³

2008

MSF

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“…As soon as two solid bodies in relative motion are considered, their tribological properties are usually of paramount importance. Specially, it is very important to investigate tribological properties in practical high temperature environments [1] so as to facilitate the practical applications.…”

Section: Introductionmentioning

confidence: 99%

Temperature Influences on Preparation and Tribological Characteristics of Electrostatically Sprayed PTFE/PEEK Composite Coatings

Zhang

Ming

Zhang

2014

AMR

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Composite coatings of PTFE/PEEK (Polytetrafluoroethylene/Polyetheretherketone) were prepared by electrostatic powder spraying method. The factors were investigated on the preheating temperature and working temperature by the orthogonal experimental method. The results show that 250°C preheating temperature and 100°C working temperature are better conditions for playing good performance of PTFE/PEEK coatings.

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“…For the present study, we used an impact method to measure the dynamic mechanical properties of oxide films formed on the surfaces of mild steel, titanium, and its alloy [10,11], as examples of practical plant component materials. In this paper, we compare and discuss the mechanical and adhesive properties of oxide films on various metallic materials in high-temperature corrosive environments, elucidating the validity of the impact method experimentally.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Mechanical Properties of Oxide Films Formed on Metallic Surfaces as Measured Using a Tribological Approach at High Temperature

Oka

Tsumura

2011

Advances in Tribology

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The surface degradation of metals in boiler tubes and turbines in high-temperature corrosive environments causes severe problems in fuel combustion power plant systems. High-temperature resistant materials have been recently developed using a thermal barrier coating (TBC) and high-chromium alloys. Oxide films or coatings formed on metal surfaces at high temperatures can sometimes decrease the corrosion rate. However, the damage to the material is often accelerated by the mechanical removal of corrosion products from the material surface. It is therefore very important to investigate the mechanical and adhesive properties of the oxide films or coatings on metal surfaces used in high-temperature environments. This paper introduces a tribological method that uses a single spherical projectile impact at high temperature to measure the mechanical and adhesive properties of oxide films formed on various metal surfaces. Impact tests were performed on the surfaces of oxide films after their growth in a hightemperature furnace, and the deformed or fractured surfaces were observed in order to measure the mechanical and adhesive properties. The mechanical and adhesive properties of an elastic modulus, fracture, and exfoliation stresses were measured using the impact method, and the results depended on the type of metal oxide films and on the high-temperature environment.

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Mechanical properties and adhesion of oxide films examined by a solid particle impact method at high temperature corrosive environments

Cited by 9 publications

References 12 publications

Comparison between Current Methods for Measurement of High Temperature Corrosion of Boiler Steels in Steam Environments

Comparison between Current Methods for Measurement of High Temperature Corrosion of Boiler Steels in Steam Environments

Temperature Influences on Preparation and Tribological Characteristics of Electrostatically Sprayed PTFE/PEEK Composite Coatings

Dynamic Mechanical Properties of Oxide Films Formed on Metallic Surfaces as Measured Using a Tribological Approach at High Temperature

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