Results 11 to 20 of about 2,581 (180)

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

Enhancing Heat Treatment Conditions of Joints in Grade P91 Steel: Looking for More Sustainable Solutions

open access: yesMetals, 2021
Grade P91 is a relatively new class of steel, which has received special attention from designers because it presents extremely interesting characteristics for specific applications.
Vitor F. C. Sousa   +4 more
doaj   +1 more source

A Creep Constitutive Model, Based on Deformation Mechanisms and Its Application to Creep Crack Growth

open access: yesMetals, 2022
In this paper, a constitutive model, based on the creep deformation mechanism in P91 steel, under a wide range of stress levels, was established and embedded into finite element software.
Jingwei Zhang   +4 more
doaj   +1 more source

Measuring Dilution and Wear for Laser Cladding of Stellite 6 Produced on a P91 Steel Substrate using Two Different Heat Inputs

open access: yesMATEC Web of Conferences, 2016
Stellite 6 was deposited by laser cladding on a P91 substrate with energy inputs of 1 kW (P91-1) and 1.8 kW (P91–1.8). The chemical compositions, microstructures and surface roughnesses of these coatings were characterized by atomic absorption ...
Kusmoko Alain, Dunne Druce, Li Huijun
doaj   +1 more source

Corrosion of Aluminized and Uncoated 9–12% Cr Boiler Steels in Simulated Biomass andWaste Combustion Conditions

open access: yesHigh Temperature Materials and Processes, 2011
Coatings are seen a promising way to improve the corrosion resistance of relatively cheap power plant steels to enable higher steam temperatures than currently in use.
Metsäjoki Jarkko   +2 more
doaj   +1 more source

DEFORMATION-MECHANISM-BASED MODELING OF CREEP BEHAVIOR OF P91 STEEL

open access: yesJixie qiangdu, 2022
Creep behavior of P91 steel was studied by using a constitutive model based on deformation mechanism. Combined with the experimental data, it was found that the minimum creep rate has an obvious exponential relationship with the applied stress during ...
LI Bo   +4 more
doaj  

High Temperature Oxidation Process of P91 Steel in CO2 Atmosphere Containing SO2 [PDF]

open access: yesArchives of Metallurgy and Materials, 2019
In order to improve the efficiency of power generation system and reduce CO2 emissions power plants work at high temperature and pressure. Under such conditions modified steel 9Cr, which fulfils the requirements concerning creep resistance, is used ...
H. Kominko, A. Jaroń
doaj   +1 more source

Impression creep test of a P91 steel: a round robin programme [PDF]

open access: yesMaterials at High Temperatures, 2017
The process of standardisation of small specimen creep testing techniques, specifically the impression creep test requires the repeatability of the test method. In this study it is accomplished through a round robin programme involving four different labs which have slightly different test set-ups adhering to predefined recommendations stated in ...
Brett, S. J.   +7 more
openaire   +2 more sources

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