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

• Autorzy: Zlámal B.
• Konferencja: Metody oceny struktury oraz własności materiałów i wyrobów/sympozjum ( XXI ; 25-27.X.2006 ; Rožnov pod Rodhoštěm, Czechy)
• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

redistribution of interstitials; dissimilar laboratory weld

• Wydawca: Oficyna Wydawnicza Politechniki Opolskiej
• Czasopismo: Zeszyty Naukowe. Mechanika / Politechnika Opolska
• Rocznik: 2006
• Tom: z. 88
• Strony: 223--228
• Opis fizyczny: Bibliogr. 5 poz., rys., wykr.

Twórcy

autor

Zlámal B.

• Brno University of Technology, Faculty of Mechanical Engineering, Czech Republic

Bibliografia

• [1] SAUNDERS, N., MIODOWNIK, A. P.: CALPHAD (Calculation of Pha = Diagrams): A Comprehensive Guide. Cambridge: Elsevier Science Lii 1998. ISBN 0-08-0421296.
• [2] BORGENSTAM, A., et al: DICTRA, a Tool for Simulation of Diffusion: Transformations in Alloys. Journal of Phase Eąuilibria, 2000, vol. 21, p. 26c 280.
• [3] UNUCKA, P.: Phase Equilibria in Multicomponent Systems C-Cr-Fe-Mo-X PhD Thesis. Brno: BUT Faculty of Mechanical Engineering. 2004, 93p.
• [4] SOPOUŚEK, J. et al: Science and Technology of Welding and Joining, 9 1 (2004), p. 59-63.
• [5] ZLAMAL, B. et al.: Redistribution of Interstitital Elements in Dissimila Welds of Creep-resistant Steels with Increased Nitrogen Content. In Meta 2006: 15. int. metal, conference. Hradec nad Moravici, Czech Republic [CD ROM]. Ostrava: TANGER, May 2006.