Influence of Long-Term Impact of Elevated Temperature on the Physical Properties of the Sanicro 25 Steel

Sroka, M.; Zieliński, A.; Golański, G.; Puszczało, T.; Zacłona, J.

doi:10.12693/aphyspola.138.232

Cited by 3 publications

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“…Using the results of the investigations of precipitation processes in the microstructure of the 22Cr25NiwCoCu steel, both within the grains and at the grain boundaries, their statistical analysis was carried out. The results of mechanical tests [24][25][26] indicate that these precipitates significantly impact the properties of the test material. To illustrate this impact, the following parameters were used: surface area and equivalent diameter of precipitates.…”

Section: Test Resultsmentioning

confidence: 99%

Archives of Metallurgy and Materials

Sroka

Zieliński

Puszczało

et al. 2021

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The 22Cr25NiwCoCu austenitic stainless steel was developed by aB Sandvik Material Technology in Sweden. due to its high creep strength and good corrosion resistance, this material is well suited for use in superheaters in advanced coal-fired power boilers as well as in other types of steam boilers using various types of fuel. The examined material was subject to long-term ageing for the time of annealing up to 20 000 h at 700 and 750°C. Precipitation processes and microstructure stability as-received and after ageing were investigated. Examination of the microstructure was conducted using scanning electron microscopy. The identification of secondary phases was carried out by X-ray phase composition.Using the results of the investigations of precipitation processes in the microstructure, both within the grains and at the grain boundaries, their statistical analysis was carried out. To illustrate this impact, the following parameters were used: surface area and equivalent diameter of precipitates. Based on the surface area measurements, the percentage of the phase in the reviewed photo's total area was calculated.

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Section: Test Resultsmentioning

confidence: 99%

Archives of Metallurgy and Materials

Sroka

Zieliński

Puszczało

et al. 2021

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Effects of Si on the stress rupture life and microstructure of a novel austenitic stainless steel

Lü

Chen

et al. 2023

Journal of Materials Research and Technology

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Preliminary Studies on Rare Elements Addition and Effect on Oxidation Behaviour of Pack Cementation Coatings Deposited on Variety of Steels at High Temperature

et al. 2021

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The aim of the paper was to investigate the air oxidation behaviour of pack aluminised steels exposed at 650 °C for 1000 h in static natural air atmosphere. The pack coatings were doped by rare elements such as gadolinium (Gd), cerium oxide (CeO2), and lanthanum (La) in order to enhance the corrosion resistance and plasticity of the deposited layers. In this work, the following steels were used: 16M, T91, VM12, Super 304H, and finally SANICRO25. The results indicated a much higher corrosion resistance in the coated 16M, T91, and VM12 steels; the steels with a higher Cr content than 16 wt % Cr indicated a better behaviour in the uncoated state than in the coated state. However, the observed difference in mass gain between the uncoated and the coated austenitic steels was not enormous. Furthermore, the addition of RE elements to the coating showed some effect in terms of coating thicknesses and differences in the layer structures. The materials prior to testing and after the exposure were investigated using XRD, the SEM X-ray maps with an EDS instrument were used for particular samples to evaluate the phase identifications, element concentrations, microstructure, and chemical composition.

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Influence of Long-Term Impact of Elevated Temperature on the Physical Properties of the Sanicro 25 Steel

Cited by 3 publications

References 0 publications

Archives of Metallurgy and Materials

Archives of Metallurgy and Materials

Effects of Si on the stress rupture life and microstructure of a novel austenitic stainless steel

Preliminary Studies on Rare Elements Addition and Effect on Oxidation Behaviour of Pack Cementation Coatings Deposited on Variety of Steels at High Temperature

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