| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Defects and Properties of Cast Metals
|
| Presentation Title |
Defects Comparison between Single and Double-sided Electron Beam Welded Dissimilar DP600 Steel to 5754 Al Alloy Joints: X-ray Tomography Study |
| Author(s) |
Soumitra Kumar Dinda, Prakash Srirangam, Gour Gopal Roy |
| On-Site Speaker (Planned) |
Soumitra Kumar Dinda |
| Abstract Scope |
DP600 steel to Al-5754 alloy dissimilar welding was performed using electron beam welding process at single and double sided welding with different welding speed condition. Two major weld defects i.e. porosity and intermetallic compounds (IMCs) were characterized qualitatively and quantitatively in 3-dimensional by X-ray computed tomography (XCT) analysis. It was found that both defects size and volume percentage increases with increasing welding speed. But number density of IMCs were comparatively less at higher speed but average volume quite high. Comparison with single-sided welding, double-sided welding provides quality weld products by decreasing both defects qualitatively and quantitatively. Pores more homogeneously distributed at double-sided welded products rather than single sided. Chances of gaseous pores formation highest at highest welding speed condition and identified by Raman spectroscopy method. From our above study, its clear that lower speed provides quality products. Also, double sided welding gives better products even in higher welding speed. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |