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

Zlámal B.

Zeszyty Naukowe. Mechanika / Politechnika Opolska

2006

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.