Numerical and experimental investigation into effect of temperature field on sensitization of AISI 304 in butt welds fabricated by gas tungsten arc welding

Hwa Teng Lee, Chun Te Chen

研究成果: Article同行評審

15 引文 斯高帕斯(Scopus)

摘要

This study examines the effect of the temperature field on the sensitization tendencies of AISI 304 two-pass butt welds fabricated using the gas tungsten arc welding (GTAW) method. The thermal cycles induced in the two-pass welding process are simulated using ANSYS software based upon a moving heat source model and the function of Element Birth and Death was employed also in the filled metal GTA welding. The validity of the numerical model is confirmed by comparing the simulation results with the corresponding experimental results. The results show that the heat-affected zone (HAZ) in the 2nd pass specimen is susceptible to intergranular corrosion (IGC). However, the HAZ in the 1st pass specimen shows no obvious signs of IGC. The difference in the sensitization tendencies of the two specimens is attributed to a difference in their respective heating and cooling times.

原文English
頁(從 - 到)1506-1514
頁數9
期刊Materials Transactions
52
發行號7
DOIs
出版狀態Published - 2011 7月

All Science Journal Classification (ASJC) codes

  • 一般材料科學
  • 凝聚態物理學
  • 材料力學
  • 機械工業

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