TY - JOUR
T1 - Predicting effect of temperature field on sensitization of alloy 690 weldments
AU - Lee, Hwa Teng
AU - Chen, Chun Te
N1 - Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2011
Y1 - 2011
N2 - The present study develops two 3-D finite element (FE) thermal models of the temperature field induced within an Alloy 690 butt weld fabricated using the two-pass GTA welding and the laser beam welding (LBW) methods, respectively. The welding thermal cycles of the two welding methods are simulated using ANSYS software based upon a moving heat source model and the high-temperature thermal physical property data are derived in the JMatPro database. The validity of the numerical model is confirmed by comparing the simulation results with the corresponding experimental findings. Agreement is found between the numerical results for the temperature field and the experimental temperature measurements. In addition, the FEM models we use can help us estimate the range and size of the sensitization zone and the time duration of the sensitization temperature. Overall, the results provide useful insight into the sensitization tendencies of Alloy 690 weldments.
AB - The present study develops two 3-D finite element (FE) thermal models of the temperature field induced within an Alloy 690 butt weld fabricated using the two-pass GTA welding and the laser beam welding (LBW) methods, respectively. The welding thermal cycles of the two welding methods are simulated using ANSYS software based upon a moving heat source model and the high-temperature thermal physical property data are derived in the JMatPro database. The validity of the numerical model is confirmed by comparing the simulation results with the corresponding experimental findings. Agreement is found between the numerical results for the temperature field and the experimental temperature measurements. In addition, the FEM models we use can help us estimate the range and size of the sensitization zone and the time duration of the sensitization temperature. Overall, the results provide useful insight into the sensitization tendencies of Alloy 690 weldments.
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U2 - 10.2320/matertrans.M2011147
DO - 10.2320/matertrans.M2011147
M3 - Article
AN - SCOPUS:80655128836
SN - 1345-9678
VL - 52
SP - 1824
EP - 1831
JO - Materials Transactions
JF - Materials Transactions
IS - 9
ER -