Microstructural Stability of Dissimilar Weld Joint of Creep-Resistant Steels with Increased Nitrogen Content at 500 – 900 °C

Bronislav Zlámal; Rudolf Foret; Jiří Buršík; Milan Svoboda

doi:10.4028/www.scientific.net/DDF.263.195

Paper Titles

Simulation of Precipitates Evolution in Steels
p.171

Surface Diffusion and Island Growth
p.177

Diffusional Growth Kinetics of Boride Layers at the 13% Cr Steel Interface with Amorphous Boron
p.183

Diffusion of Zinc in Two-Phase Mg-Al Alloy
p.189

Microstructural Stability of Dissimilar Weld Joint of Creep-Resistant Steels with Increased Nitrogen Content at 500 – 900 °C
p.195

Diffusion in the Presence of Twin Boundaries
p.201

Grain Boundary Self-Diffusion in Nickel
p.207

Study of Kirkendall Effect in Ni/Ni₃Al Welded Joint after the High Temperature Annealing
p.213

Diffusion in Transition Metal Diborides - An Overview
p.219

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Microstructural Stability of Dissimilar Weld Joint of Creep-Resistant Steels with Increased Nitrogen Content at 500 – 900 °C

Abstract:

The structural changes taking place in the dissimilar laboratory welds of 6CrMoV 8-3-2 (T25), being under development, and modified X12CrMoVNb 10-1 (P91) nitrided steels annealed at temperatures of 500 – 900 °C have been subject of study. Carbon and nitrogen redistribution measurement by the EPMA method was complemented with detailed structural analysis aimed at the phase profiles and chemical composition of coexisting carbides and carbonitrides in particular regions of the weld joint. Results of experimental work were compared with thermodynamic and kinetic modeling using the DICTRA software. A very good agreement between the modeling and the experiments was observed.

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Periodical:

Defect and Diffusion Forum (Volume 263)

Pages:

195-200

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.263.195

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Online since:

March 2007

Authors:

Bronislav Zlámal, Rudolf Foret, Jiří Buršík, Milan Svoboda

Keywords:

Carbon/Nitrogen Depleted Zone, Carbon/Nitrogen Enriched Zone, Creep Resistant Steel, Modeling, Redistribution, Structural Analysis, Weld Joint

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