Results 1 to 10 of about 19,446 (228)

Evolution of dislocation density, size of subgrains and MX-type precipitates in a P91 steel during creep and during thermal ageing at 600C for more than 100,000h

open access: yesMaterials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 2010
International audienceThere are rather few quantitative data on the microstructure of the 9–12%Cr heat resistant steels after long-term creep. This paper presents results of the quantitative measurement of the size of MX precipitates, subgrain size and ...
Anna Zielińska-Lipiec, Tomasz Koziel
exaly   +4 more sources

Morphology of Inclusions and Its Refinement Mechanism in the New P91 Heat-Resistant Pipeline Steel

open access: yesMetals, 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
doaj   +1 more source

Effect of Grit Blasting and Thermal Spraying on Microstructure Evolution of P91 Weldment [PDF]

open access: yesArchives of Metallurgy and Materials, 2018
In the present work, studies have been carried out on the variations in the microstructure and hardness of P91 base-metal and welded joint. This variations result from the grit blasting and thermal cycle experienced during the thermal spraying process ...
J.G. Thakare   +4 more
doaj   +1 more source

Characterization of weld fusion zone for TIG welded P91and P92 steels [PDF]

open access: yesArchives of Metallurgy and Materials, 2018
The welding of nuclear grade P91 and P92 steel plate of thickness 5.2 mm were performed using the autogenous tungsten inert gas (TIG) welding process.
C. Pandey   +4 more
doaj   +1 more source

The stress and strain distribution in X10CrMoVNb9-1 power engineering steel after long time degradation studied by the ESPI system [PDF]

open access: yesBulletin 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
doaj   +1 more source

Determination of Location-Specific Solidification Cracking Susceptibility for a Mixed Dissimilar Alloy Processed by Wire-Arc Additive Manufacturing

open access: yesMetals, 2022
Solidification cracking is a major obstacle when joining dissimilar alloys using additive manufacturing. In this work, location-specific solidification cracking susceptibility has been investigated using an integrated computational materials engineering (
Soumya Sridar   +4 more
doaj   +1 more source

Research and Application of the Original Position Statistical Distribution Analysis Method for Non-Metallic Inclusions in P91 Steel

open access: yesMetals, 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
doaj   +1 more source

Creep Rate, Friction, and Wear of Two Heat-Affected Zone Regions of 9–12 wt.% Cr Steels

open access: yesMetals, 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
doaj   +1 more source

Study of early P91 dual corrosion in steam and simulated combustion gases from a gas-fired boiler

open access: yesJournal of Materials Research and Technology, 2021
P91 ferritic steel pipes face dual environments during boilers operation: steam-side and fire-side. This P91 steel assessment differs from the dual studies performed to simulate coal-fired boilers -oxyfuel/steam atmospheres- since the fuel source is ...
Anibal Alviz-Meza   +6 more
doaj   +1 more source

Study of Corrosion Performance and Mechanisms of P91, 304SS and IN625 Alloys in Molten Nitrate Salts Used for Thermal Energy Storage System

open access: yesMetals, 2023
The corrosion performance of P91, 304SS and IN625 alloys was evaluated in simulated Solar Salt at 565 °C for up to 15 days. Results revealed that IN625 exhibited the best corrosion resistance with the evolution of thin and compact dual-structured oxide ...
Ning Li   +6 more
doaj   +1 more source

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