CARBON AND NITROGEN REDISTRIBUTION IN WELD JOINTS OF HEAT RESISTANT STEELS
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F05%3A00012734" target="_blank" >RIV/00216224:14310/05:00012734 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
čeština
Original language name
CARBON AND NITROGEN REDISTRIBUTION IN WELD JOINTS OF HEAT RESISTANT STEELS
Original language description
The present contribution deals with the theoretical modelling of the kinetics of the development of chemical composition and phase profiles of heterogeneous laboratory weld joints of heat resistant steels from the point of view of their long-term stability. The T25 ( 6 CrMoV 8-3-2) heat-resistant ferritic steel currently being developed and the advanced P91 (X10CrMoVNb 10-1) chromium steel, both steels after ion nitriding, homogenisation at 1050şC and weld joining were the subject of study. The basic compositions of materials were approximated as the Fe-Cr-Ni-Mo-V-C-N system. The long-term annealing of the T25+0.1129wt%N | P91+(0.8-0.064wt)N weld joints were simulated at 600şC and 900şC. The simulated results were compared with experimental carbon profile observations. The phase diagrams of the investigated materials were calculated using the CALPHAD approach [1] and applying the STEEL thermodynamic database [2].
Czech name
CARBON AND NITROGEN REDISTRIBUTION IN WELD JOINTS OF HEAT RESISTANT STEELS
Czech description
The present contribution deals with the theoretical modelling of the kinetics of the development of chemical composition and phase profiles of heterogeneous laboratory weld joints of heat resistant steels from the point of view of their long-term stability. The T25 ( 6 CrMoV 8-3-2) heat-resistant ferritic steel currently being developed and the advanced P91 (X10CrMoVNb 10-1) chromium steel, both steels after ion nitriding, homogenisation at 1050şC and weld joining were the subject of study. The basic compositions of materials were approximated as the Fe-Cr-Ni-Mo-V-C-N system. The long-term annealing of the T25+0.1129wt%N | P91+(0.8-0.064wt)N weld joints were simulated at 600şC and 900şC. The simulated results were compared with experimental carbon profile observations. The phase diagrams of the investigated materials were calculated using the CALPHAD approach [1] and applying the STEEL thermodynamic database [2].
Classification
Type
D - Article in proceedings
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA106%2F03%2F0636" target="_blank" >GA106/03/0636: The modelling and experimental study of structural stability of modern heat-resistant steels and their weldments</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2005
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
1-st International Conference Super-High Strenght Steels
ISBN
88-85298-56-7
ISSN
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e-ISSN
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Number of pages
9
Pages from-to
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Publisher name
Associazione Italiana di Metallurgia
Place of publication
Roma
Event location
2.- 4.11. 2005, Roma
Event date
Jan 1, 2005
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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