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2 Zeszyty Naukowe. Mechanika / Politechnika Opolska

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Modelling of microstructural changes in dissimilar welds of low- and high-alloy CrMoV steels at 500-750°C

100%

Zlámal B.

Zeszyty Naukowe. Mechanika / Politechnika Opolska

2006

tom z. 88

223-228

The structural changes taking place in the dissimilar laboratory weld of low-alloy 6CrMoV 8-3-2 steel, currently being developed, and high-alloy X12CrMoVNb 10-1 steel have been subject of study. The redistribution of interstitials (C, N) and phase profiles in the weld joints have been simulated by means of the DICTRA software. In addition to condition of 500°C/1000h, annealing at 700°C/56 h and 750°C/32.5 h was calculated. The results of the simulation at 500 °C were compared with experimental observations.

Simulation of interstitials redistribution in dissimilar welds of heat-resistant steels withincreased nitrogen content

45%

Zlámal B. , Foret R. , Jan V. , Sopoušek J. , Buršík J.

Zeszyty Naukowe. Mechanika / Politechnika Opolska

2005

tom z. 86

311-316

The redistribution of interstitials (C, N) and phase profiles in heterogeneous laboratory weldjoints of the 6CrMoV 8-3-2 and X12CrMoVNb 10-1 nitrided heat-resistant steels were calculated. For the calculations Thermo-Calc and DICTRA software packages were ušed. The results from the simulation were compared with experimental observations. A relatively good agreement between the simulation and the experiments was observed.