Results 21 to 30 of about 630 (178)

FE modelling of small punch creep test using Kocks-Mecking-Estrin model

Ubiquity Proceedings, 2018
Small punch creep testing (SPCT) of thin disc specimens can be considered as a useful technique for determination of creep properties of exposed components of power generation.
H.K. Al-Abedy, I.A. Jones, W. Sun
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

MATEC 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

Isothermal Fatigue Characterization of P91 Steel Under Load Control [PDF]

Materials Research
P91 steels are widely used in power plants. They were developed in a context of increasing process temperatures to increase efficiency and reduce CO2 emissions into the atmosphere.
Yvens S. Sebastiany, Antonio R. Faria Neto, Marcelo S. Martins, José Elias Tomazini, Mark Barkey   +4 more
doaj   +1 more source

Elastoplastic Fracture Analysis of the P91 Steel Welded Joint under Repair Welding Thermal Shock Based on XFEM

Metals, 2020
P91 steel is a typical steel used in the manufacture of boilers in ultra-supercritical power plants and heat exchangers in nuclear power plants. For the long-term serviced P91 steel pressurized structures, the main failure mode is the welded joint ...
Kai Yang, Yingjie Zhang, Jianping Zhao
doaj   +1 more source

The corrosion behavior of T/P91 steel under the atmosphere environment in Hunan province

MATEC Web of Conferences, 2018
The research of corrosion behavior of T/P91 steel was investigated taking the case for the T/P91 steel corrosions existed during the construction process of a thermal power plant in Hunan province.The morphology change, product component and mechanical ...
Chao Feng, Yi Xie, Jun Wang, Yi Long, Wei Chen, Dahai Xia   +5 more
doaj   +1 more source

Study of the creep cavitation behavior of P91 steel under different stress states and its effect on high-temperature creep properties

Journal of Materials Research and Technology, 2022
In this study, circumferential U-notches of different depths were machined on a plain cylindrical creep specimen to simulate different stress states during steam pipe operation.
Ke Han, Haimin Ding, Xiaoliang Fan, Wenbin Li, Yadong Lv, Yanting Feng   +5 more
doaj   +1 more source

Effect of B and N Content and Austenitization Temperature on the Tensile and Impact Properties of Modified 9Cr-1Mo Steels

Metals, 2023
The present study investigates the relative effect of B and N concentrations and the austenitization temperature on the microstructure and mechanical properties (tensile and Charpy impact) of modified 9Cr-1Mo (P91) steels.
Ravindran Rejeesh, Rakesh Kumar Barik, Rahul Mitra, Andrii Kostryzhev, Chitta R. Das, Shaju K. Albert, Debalay Chakrabarti   +6 more
doaj   +1 more source

The influence of coupling effect between stress and high temperature on the degradation of microstructure and hardness in P91 steel

Materials & Design
Interrupted aging and creep tests were performed in the condition of 650 °C/70 MPa for P91 steel. The mechanisms of hardness and microstructure evolution during aging and creep were studied through hardness test, SEM/EBSD and TEM/EDS.
Xiaoxiang Sun, Xue Wang
doaj   +1 more source

Characterization of As-Welded Microstructure in a P91 Steel

Welding Journal
The microstructure of the heat affected zone (HAZ) and fusion zone (FZ) in the as-welded condition of a single-pass weld performed by the flux-cored arc welding (FCAW) process was studied in a P91 steel using microhardness measurements, field-emission scanning electron microscopy, transmission electron microscopy, and x-ray diffraction.
ANA LUCÍA MARZOCCA, CLAUDIO ARIEL DANÓN, MARÍA INÉS LUPPO, FLAVIO SOLDERA, MÓNICA ZALAZAR   +4 more
openaire   +1 more source

Numerical simulation of creep notched bar of P91 steel

Frattura ed Integrità Strutturale, 2022
Numerous components designed for use at elevated temperatures now exhibit multiaxial stress states as a result of geometric modification and material inhomogeneity. It is necessary to anticipate the creep rupture life of such components when subjected to multiaxial load.
Ab Razak, Norhaida, Davies, C. M.
openaire   +5 more sources