لیست مطالب داخل این پاورپوینت:
- Introduction
- Appearance of a Cold Crack in Weld Metal
- Hydrogen Assisted Cold Cracking
- Segregation during Solidification of Weld Metal
- Summary of Work Presented Previously (Trends 2002)
- Effect of Segregation
- What is Hollow Bead Defect?
- Appearance of Hollow Bead Defect
- Experimental Investigation
- Joint Geometry
- Automated Welding Machine
- Welding Conditions
- Welded Sample
- SEM Results
- Cold Crack from Hollow Bead Defect
- Microprobe x-ray maps
- Result
- Development of Hollow Bead Defect
- Transverse Section
- Longitudinal Section
- Summary
- Conclusion