Steam Oxidation Behavior of Advanced Steels and Ni-Based Alloys at 800 °C

Dudziak, T.; Deodeshmukh, Vinay; Sobczak, J.; Sobczak, N.; Witkowska, M.; Ratuszek, W.; Chruściel, K.

doi:10.1007/s11665-017-2535-8

Cited by 20 publications

(3 citation statements)

References 19 publications

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“…Steel materials with Cr contents of 2-10% cannot withstand these USC and A-USC service conditions due to their quick oxidation and destruction. Currently, particular attention is focused on the austenitic steels with a high Cr content (> 20 wt.%), such as 310 stainless steel (310SS) or more advanced with higher Ni contents, like Incoloy, where adequate mechanical properties are combined with high-temperature corrosion resistance owing to the formation of continuous, thin, adherent, thermally grown oxide Cr 2 O 3 and/or spinel-type scale, depending on metal composition (Ref [3][4][5][6]. Nevertheless, under longterm exposure, even 310SS and other Cr-and Ni-rich steels and alloys experience degradation due to breakaway oxidation (Ref [7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Multilayered Coatings for High-Temperature Steam Oxidation: TGA Studies up to 1000 °C

Dudziak¹,

Medvedovski²,

Homa³

2018

J. of Materi Eng and Perform

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The aim of the study was to obtain a preliminary data focused on the steam oxidation performance of multilayered coatings deposited on 310 stainless steel and 800H Incoloy. The coatings were obtained through the aluminizing thermal diffusion technology with the formation of aluminides; some coating options had an additional top layer of selected composition. In this study, five different coating systems, as well as uncoated metals, were exposed at 1000°C using thermogravimetric analysis instrumentation simulating an initial stage of steam oxidation corrosion. In this work, along with determination of the mass change of the samples, microanalyses using light optical microscopy, scanning electron microscopy (SEM) equipped with energy x-ray dispersive spectrometry (EDS), as well as surface micro-hardness determination, have been carried out. The designed coating systems demonstrated promising high-temperature steam oxidation performance with no breakaway degradation issues.

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Section: Introductionmentioning

confidence: 99%

Multilayered Coatings for High-Temperature Steam Oxidation: TGA Studies up to 1000 °C

Dudziak¹,

Medvedovski²,

Homa³

2018

J. of Materi Eng and Perform

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“…The material examined was the heat-resistant Ni-based alloy Haynes ® 230 ® ; its chemical composition is shown in Table 1. (Dudziak et al 2017a(Dudziak et al , 2017b(Dudziak et al , 2018. In this type of steam oxidation test set-up, 100% pure steam was generated by pumping deionized water from a reservoir placed underneath the furnace.…”

Section: Materials For Examinationsmentioning

confidence: 99%

Characteristics of the Evolution of Carbide Morphology in the Haynes® 230® Alloy as a Result of High Temperature Annealing

Warmuzek¹,

Polkowska²,

Dudziak³

2021

J. Appl. Mater. Eng.

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In this work, results of an investigation of the microstructure evolution in Haynes® 230® alloy are presented. The morphological and chemical compositions of the chosen microstructure’s constituents, such as the primary and secondary carbides, were analyzed based on tests in the temperature range 700–800 °C for 1000–3000 h. The prediction of phase evolution within the microstructure was proposed based on the analysis of mutual replacement of carbide-forming elements at the carbide/matrix interface. Based on the results, some complementary markers were considered to describe Haynes® 230® microstructure evolution. Qualitative markers, i.e., defined morphological features, were related to the shape and distribution of microstructure constituents. The study also used quantitative markers related to the local chemical compositions of carbide particles, determined as the ratio of the concentrations of carbide-forming elements Crc/Wc, Crc/CrM and Wc/WM. Microstructure maps created on the basis of these complementary markers for the successive annealing stages reflected the course of its morphological evolution.

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“…HR3C heat-resistant steel (25Cr-20Ni-Nb-N steel) is a new type of austenitic heat-resistant steel improved by adding Nb and N in the basis of TP310 heat-resistant steel [1][2][3][4]. HR3C steel is widely used in supercritical and ultra-supercritical units due to its excellent properties, and HR3C steel has high oxidation resistance and high temperature corrosion resistance, which is more suitable than 18-8 type heat-resistant steel in ultra-supercritical unit boiler environment [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Analysis on Oxidation Behavior of HR3C Steel at 700°C in Water Vapor

Song

Wang

2022

mater

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HR3C is an advanced heat-resistant alloy, and its high-temperature oxidation resistance directly determines the service performance of the material. Therefore, exploring the high-temperature oxidation behavior of HR3C is of great significance for the theoretical research and practical application of the material. The oxidation kinetic curve, oxide film morphology, oxide film composition, and oxide film phase composition of HR3C samples in the supply state after being oxidized in water vapor at 700°C for 50h, 150h, 250h, 350h, 450h, 550h and 600h were analyzed by SEM (Scanning Electron Microscopy), EDS (Energy Dispersive Spectroscopy) and XRD (X-ray diffraction). The results show that the oxidation kinetic curve of the material conforms to the parabolic law, the oxide film first forms a lamellar oxide, and the lamellar oxide film grows alternately to form a loose and porous oxide film surface, the oxide is composed of three oxides: Fe 3 O 4 , FeCr 2 O 4 and Fe 2 O 3 . The FeCr 2 O 4 is a spinel compound, which can form a dense oxide film, and the diffusion coefficient of metal ions in it is small, which hinders the diffusion and mass transfer of ions, thereby improving the high temperature oxidation resistance of stainless steel. The element Cr is mainly enriched in the inner oxide layer, and the element Fe is relatively high in the outer oxide layer.

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Steam Oxidation Behavior of Advanced Steels and Ni-Based Alloys at 800 °C

Cited by 20 publications

References 19 publications

Multilayered Coatings for High-Temperature Steam Oxidation: TGA Studies up to 1000 °C

Multilayered Coatings for High-Temperature Steam Oxidation: TGA Studies up to 1000 °C

Characteristics of the Evolution of Carbide Morphology in the Haynes® 230® Alloy as a Result of High Temperature Annealing

Analysis on Oxidation Behavior of HR3C Steel at 700°C in Water Vapor

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