SOPOUŠEK, Jiří, Rudolf FORET and Vít JAN. Simulation of dissimilar weld joints of steel P91. Science and Technology of Welding and Joining. HUDSON RD, LEEDS LS9 7DL, ENGLAND: MANEY PUBLISHING, 2004, vol. 9, No 1, p. 59-64. ISSN 1362-1718.
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Basic information
Original name Simulation of dissimilar weld joints of steel P91
Name in Czech Simulace heterogenních svarových spojů celi P91
Authors SOPOUŠEK, Jiří (203 Czech Republic, guarantor), Rudolf FORET (203 Czech Republic) and Vít JAN (203 Czech Republic).
Edition Science and Technology of Welding and Joining, HUDSON RD, LEEDS LS9 7DL, ENGLAND, MANEY PUBLISHING, 2004, 1362-1718.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10403 Physical chemistry
Country of publisher United Kingdom of Great Britain and Northern Ireland
Confidentiality degree is not subject to a state or trade secret
WWW web of sci
Impact factor Impact factor: 0.424
RIV identification code RIV/00216224:14310/04:00011449
Organization unit Faculty of Science
UT WoS 000220786700009
Keywords in English weldment; steel; DICTRA; carbon profile; simulation
Tags carbon profile, DICTRA, simulation, steel, weldment
Changed by Changed by: prof. RNDr. Jiří Sopoušek, CSc., učo 2405. Changed: 7/6/2004 12:26.
Abstract
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 nitrogen. The CSN 15 128 (13CrMoV 2-5) material is low alloy Cr-Mo-V steel. The SK3STC alloy (12CrMo 10-10) represents the consumable electrode material The stability of the weldment microstructure is investigated at elevated temperatures (500 - 700degreesC). The simulation method is based on the Calphad approach complemented with the theory of multicomponent bulk diffusion, local conditions of phase equilibrium, and the assumption that diffusion is the process that controls the rate of phase transformation. Significant phase profiles, concentration profiles, and phase transformation processes in the diffusion affected zone are simulated, investigated, and compared with experimental results. The potentially deleterious carbon depleted region inside each weld joint is discussed The method described can be used to predict microstructure instability in weld joints.
Abstract (in Czech)
Jsou sledovány svarové spojení ocelí CSN 15 128/P91 a SK3STC/P91. Pro jednotlivé oceli P91, CSN 15 128 a SK3STC při teplotách500 - 700stC. jsou uvedeny fázové predikované diagramy, aktivitní závislosti uhlíku a difúzní profily uhlíku ve svarových spojích.
Links
GA106/00/0855, research and development projectName: Kinetika precipitace karbidů v Cr-Mo ocelích
Investor: Czech Science Foundation, Standard Projects
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