Results 171 to 180 of about 1,368 (215)

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
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

Simulation of dissimilar weld joints of steel P91

Science and Technology of Welding and Joining, 2004
Results of computer simulations of long term service exposure for weldments of the CSN 15 128/P91 and SK3STC/P91 steels are presented and compared with corresponding results of phase and composition experiments. The welded material P91 (EU designation: X10CrMoVNb 9–1) represents progressive chromium steel alloyed with molybdenum, vanadium, carbon, and
J. Sopoušek, R. Foret, V. Jan
openaire   +1 more source

Analysis of the Causes of the Massive Ferrite in P91 Steel

Advanced Materials Research, 2012
Analyzed theoretically the reasons for the formation of massive ferrite through analysis of the phase diagram of P91 steel. By Combining with the heat treatment of the header, we can make a conclusion that the formation of massive ferrite in P91 steel is because temperature is too high (more than the A1 transformation point).
Jiang Xiao Xu, Dong Fang Ma, Yong Feng Zhao   +2 more
openaire   +1 more source

Modelling thermo-mechanical cyclic behavior of P91 steel

International Journal of Plasticity, 2020
Abstract In this paper, the analysis of the low cycle fatigue behavior of P91 steel is presented. First, experimental tests are performed to recognize different aspects of material behavior. Then an appropriate constitutive model is developed within the framework of thermodynamics of irreversible processes with internal state variables. Two different
Władysław Egner, Piotr Sulich, Stanisław Mroziński, Halina Egner   +3 more
openaire   +1 more source

Welding of P91 steel to other grades of steel for elevated temperature service

Welding International, 1998
(1998). Welding of P91 steel to other grades of steel for elevated temperature service. Welding International: Vol. 12, No. 7, pp. 509-518.
J Brozda, M Lomozik, M Zeman
openaire   +1 more source

Effect of Two Different Energy Inputs for Laser Cladding of Stellite 6 on P91 and P22 Steel Substrates

, 2014
Stellite 6 was deposited by laser cladding of two different chromium-bearing steel substrates (P91 and P22). The chemical compositions, microstructures and surface roughnesses of these coatings were characterized by atomic absorption spectroscopy ...
Huijun Li
exaly   +2 more sources

Evaluation of Microstructures and Creep Damages in the HAZ of P91 Steel Weldment

Journal of Pressure Vessel Technology, 2007
The creep strength of welded joints in high Cr steels decreases due to the formation of Type IV creep damage in heat-affected zones (HAZs) during long-term use at high temperatures. This paper aims to elucidate the processes and mechanisms of Type IV creep damage using Mod.9Cr–1Mo (ASME Grade 91) steel weldments.
Masaaki Tabuchi, Hiromichi Hongo, Yongkui Li, Takashi Watanabe, Yukio Takahashi   +4 more
openaire   +1 more source

Steam-Generator Grade P91 Steel Component Weld Creep-Assessment

Volume 1: Codes & Standards, 2023
Abstract Present study extends the investigation previously carried out on a P91 tee to two of the three component’s welds. Previous studies included both creep analysis and infield tests; component considered is the outflow tubing / manifold tee of the superheater harp, steam generator high-temperature-section. Creep simulation requires
Grisolia O., Conte A. L., Scano L., Piccini F., De Agostinis M., Fini S.   +5 more
openaire   +2 more sources