ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Monte Carlo (MC) and finite difference (FD) hybrid method is applied to numericallymodel the growth of austenite grains caused by welding thermal cycle in the heat affected zone(HAZ) of steel welds. The grain growth behaviors and pinning effects by dispersed particles aremodeled by MC method while steep changes in temperatures with time and over space are by FDmethod. The connection of the two methods is made possible by correlating MC step to the realtime through the grain growth theory. The model results are in a good agreement with experimentsas well as previous experimental results published, and it is indicated that the developed model canbe used to obtain a better understanding of the austenite grain structure development in HAZ andeven to improve the grain refinement technology using dispersed particles
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/15/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.539-543.4002.pdf
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