Normal spectral emittance of Inconel 718 aeronautical alloy coated with yttria stabilized zirconia films

González-Fernández, Luis; Campo, Leire del; Pérez-Sáez, R.B.; Tello, M. J.

doi:10.1016/j.jallcom.2011.09.097

Cited by 50 publications

(13 citation statements)

References 24 publications

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“…Temperature measurement by an optical system based on the Christiansen wavelength [4,32,49,50] (the wavelength where the material behaves as a blackbody) and a spectrometer applied as a pyrometer can be utilized in the case of polar dielectric materials (Al, Si, carbides, and nitrides).…”

Section: Methods For Surface Temperature Determinationmentioning

confidence: 99%

“…Measurements of materials with poor thermal conductivity and a high level of transparency (KBO 2 ) in solid and molten states are described in [1]. Measurements of opaque or partially transparent films and coatings deposited on a substrate have been conducted for commercial high-emissivity coatings deposited on metal substrates [38,42], atmospheric plasma sprayed yttria-stabilized zirconia (YSZ) coatings on a steel substrate [50], and an SiO film or an Al film deposited on a glass substrate [41]. Experiments with the measurement of opaque bulk materials are mentioned in [4,5,14,15,43,59,60], especially analyses of metallic samples in a solid state (stainless steels, Armco iron, brasses, nickel, and cobalt alloys).…”

Section: G Application Of Methodsmentioning

confidence: 99%

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Survey of emissivity measurement by radiometric methods

Honner

2015

Appl. Opt.

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A survey of the state of the art in the field of spectral directional emissivity measurements by using radiometric methods is presented. Individual quantity types such as spectral, band, or total emissivity are defined. Principles of emissivity measurement by various methods (direct and indirect, and calorimetric and radiometric) are discussed. The paper is focused on direct radiometric methods. An overview of experimental setups is provided, including the design of individual parts such as the applied reference sources of radiation, systems of sample clamping and heating, detection systems, methods for the determination of surface temperature, and procedures for emissivity evaluation.

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Section: Methods For Surface Temperature Determinationmentioning

confidence: 99%

Section: G Application Of Methodsmentioning

confidence: 99%

Survey of emissivity measurement by radiometric methods

Honner

2015

Appl. Opt.

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“…Emissivity depends on numerous parameters such as material roughness, chemical composition, manufacturing process, surface oxidation, temperature ( [5], [6]). Emissivity values found in literature usually lack such information about the sample used for the measurement.…”

Section: Introductionmentioning

confidence: 99%

A fast and versatile method for spectral emissivity measurement at high temperatures

Bakali

Gilblas

Pottier

et al. 2019

Review of Scientific Instruments

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In this paper, the development of a new device for high temperature emissivity measurement is described. This device aims at measuring both spectral and total emissivity for a thermal range of 600 to 1000°C. The device main targeted properties were both versatility and simplicity. To do so, a rigorous selection was made for each component: heating system, heat source, sample holder, measuring devices. Sample dimensions and the corresponding sample holder were optimized through a ray tracing model computation. Selection of sensors to compute a total emissivity was also especially discussed. A NIR spectrometer, and two MIR cameras covering [3-5] and [7.5-13]µm equipped with optical filters were chosen for spectral measurements. The major impediment was the separation between sample signal and various spurious signals emitted by environment. A specific measurement methodology was then made for each bandwidth to resolve this issue. A reference material was chosen for the device validation: Platinum. Spectral emissivity measurements were then compared to values from a commercial spectrometer. A good agreement was found for NIR and the first MIR band measurements and a higher error was seen in MIR second band which is explained by a less favorable signal to noise ratio. Integrated emissivity is then calculated and compared to values found in the literature. A good agreement between those values is found and similar trends with temperature are observed. The device is then validated for spectral and total emissivity measurement. Device versatility and simplicity allows an easy adaptation to a large area of applications.

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“…It has experienced extensive development over the past four decades. 16,17 Typically, the Inconel 718 super alloy has been developed and applied in wrought, cast, and powder metallurgy forms, and the Inconel 718 parts using these methods have demonstrated superior mechanical properties and performances. 18–20 With the rapid development of modern industry, Inconel 718 parts with complex structures, high dimension precision, and further elevated mechanical properties are in higher demand.…”

Section: Introductionmentioning

confidence: 99%

Review on powder-bed laser additive manufacturing of Inconel 718 parts

Wang

Gong

Chou

2016

Proceedings of the Institution of Mechanical Engineers, Part B:

210

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This study presents a thorough literature review on the powder-bed laser additive manufacturing processes such as selective laser melting of Inconel 718 parts. This article first introduces the general aspects of powder-bed laser additive manufacturing and then discusses the unique characteristics and advantages of selective laser melting. The bulk of this study includes extensive discussions of microstructures and mechanical properties, together with the application ranges of Inconel 718 parts fabricated by selective laser melting.

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Normal spectral emittance of Inconel 718 aeronautical alloy coated with yttria stabilized zirconia films

Cited by 50 publications

References 24 publications

Survey of emissivity measurement by radiometric methods

Survey of emissivity measurement by radiometric methods

A fast and versatile method for spectral emissivity measurement at high temperatures

Review on powder-bed laser additive manufacturing of Inconel 718 parts

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