Abstract
The composition, size distribution, and number density of oxide inclusions in the weld metal are critical factors in determining weldment properties. A new computational modeling technique is presented in this paper to understand these factors considering the fluid flow and temperature field in weld pool during submerged arc welding (SAW) of low alloy steels. The loci and the corresponding thermal cycles of thousands of oxide inclusions are calculated in the weld pool numerically. The temperature-time history and the computed time-temperature-transformation (TTT) behavior of inclusions were then used to understand the growth and dissolution of oxide inclusions in the weld pool. The statistically meaningful characteristics of inclusion behavior in the weld pool were calculated for several thousand inclusions. The agreement between the computed and the measured size distribution indicates that these parameters can be understood from the fundamentals of transport phenomena and kinetics.
| Original language | English (US) |
|---|---|
| Pages | 185-190 |
| Number of pages | 6 |
| State | Published - Dec 1 1998 |
| Event | Trends in Welding Research: Proceedings of the 5th International Conference - Pine Mountain, GA, United States Duration: Jun 1 1998 → Jun 5 1998 |
Other
| Other | Trends in Welding Research: Proceedings of the 5th International Conference |
|---|---|
| Country/Territory | United States |
| City | Pine Mountain, GA |
| Period | 6/1/98 → 6/5/98 |
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Mechanical Engineering