- All Journals
- Al-Qadisiyah University
- Basrah University
- Kirkuk University
- Mosul University
- The Iraqi Borad for Medical Specialization
- University of Anbar
- University of Technology
- Al Mustafa University
- Al-Zahraa University for Women
- Alnoor University
- Kunooz University
- Misan University
- Ninevah University
- Tikrit University
- University of Al-Hamdaniya
- University of Kerbala
Effect of Single and Double Pass Arc Welding on HAZ of High Carbon Steel Weldments | ||
| Journal of University of Babylon | ||
| Article 1, Volume 26, Issue 2, 2018, Pages 141-151 | ||
| Authors | ||
| Alaa Abdul Hasan Atiyah; Shaker J. Edrees; Farhad M. Kushnaw | ||
| Abstract | ||
| Measurements of heat affected zone width for multi high carbon steel joint in case of single and double pass arc welded have been studied. These measurements are carried out in accompanying of hardness and microstructural observations. Knowing that, high carbon steel has a poor weld ability and most of welding processes are carried out for repairing components. It is found that a preheating was a very important parameter in identifying the width of heat-affected zone. Preheating the joint at 450°C was found to gives less width heat affected zone (i.e.5.93mm) in the case of single pass welding practices. While, in the case of double pass welding, the heat affected zone becomes wider because the excessive heating during welding cycle. The double pass welding has coarsening the structure of first pass. Microscopic observations indicated that the structure of HAZ of high carbon steel was mainly lath martensite (ML) under the condition of lower weld heat input. | ||
| Keywords | ||
| Welding; Heat Affected zone width; High carbon steel | ||
|
Statistics Article View: 204 PDF Download: 81 |
||