Influence of Creep Damage on the Fatigue Life of P91 Steel. [PDF]
Materials (Basel), 2022 The following paper presents the results of tests on samples made of P91 steel under the conditions of simultaneously occurring fatigue and creep at a temperature of 600 °C. The load program consisted of symmetrical fatigue cycles with tensile dwell times to introduce creep.
Mroziński S, Lis Z, Egner H.
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Effect of Long-Term Aging on the Microstructural Evolution in a P91 Steel. [PDF]
Materials (Basel), 2022 The precipitation and growth mechanism of the Laves phase and the coarsening behaviors of Laves phase, M23C6 and MX carbonitrides have been emphatically investigated in P91 steel at 625 °C under different aging conditions. After long-term aging at 625 °C (>1500 h), it was observed that the Laves phase grew rapidly in the region near the M23C6 ...
Zhao H, Wang Z, Han X, Wang M.
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Significant reduction in creep life of P91 steam pipe elbow caused by an aberrant microstructure after short-term service [PDF]
Scientific ReportsP91 steel is an important steam pipe for ultra-supercritical power plants due to its excellent creep strength, which generally has a design life of 100,000 h.
Hongyu Zhou +7 more
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Low temperature friction stir welding of P91 steel
Defence Technology, 2016 Bead-on-plate friction stir welds were made on P91 alloy with low and high rotational speeds (100 and 1000 RPM) to study their effects on weld microstructural changes and impression creep behavior.
Prasad Rao Kalvala +4 more
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Modeling and simulation of welded joints of SS304H & P91 Steels: A Review [PDF]
E3S Web of ConferencesMost of the structures are fabricated by welded joints in various manufacturing units because of low cost and high strength. Welding process is largely used in almost all manufacturing units. Welded joints usually subject to welding deformation patterns.
D Sandeep +5 more
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Numerical simulation of creep notched bar of P91 steel
Fracture and Structural Integrity, 2022 Numerous components designed for use at elevated temperatures now exhibit multiaxial stress states as a result of geometric modification and material inhomogeneity.
Norhaida Ab Razak, C. M. Davies
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Morphology of Inclusions and Its Refinement Mechanism in the New P91 Heat-Resistant Pipeline Steel
Metals, 2022 A new type of P91 heat-resistant pipeline steel ingot was prepared by feeding Al twisted wire into a steel melt through a multi-point regional micro-supply method, combined with electromagnetic stirring. The type, shape, and size of inclusions in the new
Xiaohua Chen +6 more
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Creep Rate, Friction, and Wear of Two Heat-Affected Zone Regions of 9–12 wt.% Cr Steels
Metals, 2021 Coarsening of precipitates can have a profound effect on the mechanical properties of martensitic 9–12 wt.% Cr steels, which are typically used in critical parts of fossil-fuel power plants such as turbines, headers, and main steam pipes.
Igor Velkavrh +3 more
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Metals, 2023 Heat-resistant P91 martensitic steel is used to produce high-temperature steam pipelines in (ultra) critical power plants. However, non-metallic inclusions are inevitably produced in the metallurgical process.
Changwang Zhu +6 more
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The stress and strain distribution in X10CrMoVNb9-1 power engineering steel after long time degradation studied by the ESPI system [PDF]
Bulletin of the Polish Academy of Sciences: Technical Sciences, 2022 Maintenance of assets and equipment in power plants is essential for their safety and is required to help the plant stay active. In this paper, the specimens manufactured from a pipe of X10CrMoVNb9-1 (P91) power engineering steel in the as-received state
Mateusz Kopec
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