Weld joint simulations of heat-resistant steels

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F04%3A00011683" target="_blank" >RIV/00216224:14310/04:00011683 - isvavai.cz</a>

Alternative codes found

RIV/00216305:26210/04:PU55768

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Weld joint simulations of heat-resistant steels

Original language description

Knowledge of microstructure stability is essential for reliable estimations of the lifetime limitations of materials and welded joints at higher temperatures. The CALPHAD method complemented with appropriate diffusion approach can help us to simulate phase and element profile evolutions inside diffusion-affected zone of weld joint. The different heat-resistant steels (alloying base: Cr, Ni, Mo, V, C, N) and their weld joints are objects of our study. The particular results of the equilibrium calculations are presented as phase diagram cross-sections and element activities of the selected heat-resistant steels. The carbon and nitrogen activity temperature dependences were calculated for individual steels. The difference in these activities in two different steels (at given temperature) indicates diffusion flow direction, which can be opposite then deduced from the element content (up-hill diffusion). The simulations respect the coexistence of different carbide phases in the materials an

Czech name

Simulace svarových spojů v žáropevných ocelích.

Czech description

metodou CALPHAD doplněnou o příslušný popis difúzně řízených dějů je simulován vývoj profilů chemického a fázového složení v žáropevných ocelích na bázi Fe, Cr, Ni, Mo, V, C, N a jejich svarech. Jsou presentovány predikce fázových diagramů, závislosti aktivity uhlíku a dusíku na teplotě a similované profiy. Obsah je doplněn o up-hill difúzi uhlíku.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CF - Physical chemistry and theoretical chemistry

OECD FORD branch

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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

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2004

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Archives of Metallurgy and Materials

ISSN

1733-349

e-ISSN

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Volume of the periodical

49

Issue of the periodical within the volume

3

Country of publishing house

PL - POLAND

Number of pages

12

Pages from-to

469-480

UT code for WoS article

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EID of the result in the Scopus database

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