Open AccessSimulation of the weld heat affected zone of a 0.5Cr-Mo-V steel
Author(s) -
Balasubramaniam Radhakrishnan,
T. Zacharia
Publication year - 1995
Language(s) - English
Resource type - Reports
DOI - 10.2172/161538
Subject(s) - solidus , monte carlo method , grain growth , grain boundary , welding , materials science , heat affected zone , metallurgy , grain size , temperature gradient , kinetics , microstructure , physics , mathematics , alloy , statistics , quantum mechanics
By using a Monte Carlo grain growth algorithm and a methodology for obtaining a one-to-one correlation between Monte Carlo and real parameters of grain size and time, the grain structure in the weld heat affected zone of a 0.5 Mo-Cr-V steel has been simulated. The simulations clearly show that the kinetics of grain growth can be retarded by the presence of steep temperature gradients in the weld heat affected zone. Additional pinning, due to the formation of grain boundary liquid near the solidus temperature, has also been simulated. It is shown that in order to accurately predict the observed grain size in the weld heat affected zone of the 0.5Cr-Mo-V steel, the retardation in growth kinetics due to temperature gradients as well as liquid pinning should be considered