Results 131 to 140 of about 2,581 (180)

Small punch testing of P91 steel

International Journal of Pressure Vessels and Piping, 2006
Abstract Results of small punch tests on miniaturized thin discs of P91 steel are compared with relevant conventional tests on bulk specimens. Small punch tests under constant displacement rate were performed at room temperature and 873 K. The results were correlated with results of conventional stress–strain tests. Results of small punch tests under
Karel Milička, Ferdinand Dobeš
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T91/P91

Alloy Digest, 1993
Abstract T91/P91 is a ferritic chromium/molybdenum alloy that is microalloyed with vanadium and columbium (niobium) and has nitrogen. The first Super 9% Cr steel was originally approved and developed for superheaters and reheat superheaters.
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P91 Une artériopathie diabétique particulière

Diabetes & Metabolism, 2008
Introduction L’arteriopathie peripherique est une localisation classique, mais souvent negligee, de la macroangiopathie diabetique. Nous rapportons ici un cas de topographie inhabituelle, source d’errance diagnostique. Observation Un homme de 52 ans, diabetique depuis 1997, est hospitalise en juillet 07 pour douleurs a la marche.
A. Fredenrich, M. Bec-Roche, M. Batt, M. Franco, B. Canivet   +4 more
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Study on the softening mechanism of P91 steel

Materials Science and Engineering: A, 2018
Abstract Different tempering temperatures were designed to study on the softening mechanism of P91 steel. The variations in the microstructures and mechanical properties of the steel tempered at different temperatures were investigated. After tempered at the temperature below 790 °C, the microstructure of P91 steel mainly consisted of tempered lath ...
Xuehua Zhang, Yanping Zeng, Wenhe Cai, Zhichun Wang, Weili Li   +4 more
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P91 Post-operative pain in neurosurgery

Journal of Neurology, Neurosurgery & Psychiatry, 2019
ObjectivesAre the analgesic guidelines for those neurosurgical operations associated with major and complex major pain consistently followed? Is there a correlation between adherence and post-operative pain?DesignPatients undergoing spinal surgery and foramen magnum decompressions were visited on the first post-operative day (D1).
PM Haigh, F Al-Hatimi, H Stewart, S Rajagopal, S Khalifa, J Smart   +5 more
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Thermomechanical Cyclic Properties of P91 Steel

2019
The paper presents the results of low-cycle fatigue tests on P91 steel specimens, carried out under constant strain and constant stress conditions, in several test temperatures. The analysis of the experimental data indicates the influence of fatigue testing conditions on the fatigue life predictions based on the Ramberg-Osgood relationship, while the ...
Władysław Egner, Stanisław Mrozinski, Piotr Sulich, Halina Egner   +3 more
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Residual stresses in P91 steel electron beam welds

Science and Technology of Welding and Joining, 2013
This paper describes the characterisation of residual stress in electron beam welded P91 ferritic–martensitic steel plates (9 mm thick) by neutron diffraction and contour measurement methods. The novelty of the work lies in revealing the residual stress profile at a fine length scale associated with a ∼1 mm wide fusion zone.
Venkata, K. A, Truman, Christopher, Bouchard, P.J., Francis, J, Kumar, S, Kundu, A, Paradowska, A, Dey, G.K   +7 more
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Is Substituting P91 for P22 Justified?

2016
While refurbishing fossil fuel power plants, it is of great importance for safety precaution to replace the aged components which exceeded their designed service life with new ones. The most important parameter for thick-walled components is thickness value and the most important procedure is its reduction.
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High-Temperature Mechanical Properties of P91 Weld Metal

Materials Performance and Characterization, 2017
Abstract Increasing temperature is one of the key factors for improving the efficiency of steam power plants. Important metallurgical phenomena are activated at such high temperatures and creep resistance becomes a driving criterion for the material selection.
RIVOLTA, BARBARA, TAVASCI, FRANCESCA, GEROSA, RICCARDO, Yenus, J.   +3 more
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Creep of Cast Steel P91 with Weld Joint

Materials Science Forum, 2014
High-temperature martensitic steel P91, internationally marked GX12CrMoVNbN91, is the material used in the energy industry. Creep and high-temperature corrosion resistances are important properties that affect the application of this material at higher temperatures. Weldment reduces creep properties.
Tomás Vlasák, Jan Hakl, Pavel Novák, Jiří Sochor, Jan Čech   +4 more
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