| About this Abstract |
| Meeting |
Materials Science & Technology 2019
|
| Symposium
|
Joining of Advanced and Specialty Materials XXI
|
| Presentation Title |
Influence of the Process Parameters on the Transformation Behaviour of 2205 Duplex Stainless Steel during Laser Beam Welding |
| Author(s) |
Stefan Ulrich, Felix Gemse, Peter Schaaf, Simon Jahn |
| On-Site Speaker (Planned) |
Felix Gemse |
| Abstract Scope |
This paper addresses the effect of process parameters on the cooling rate and thus directly on the phase balance between austenite and ferrite in 2205 (EN 1.4462/UNS S32205) duplex stainless weldments. Welded samples were metallographically examined with X-ray diffractometer, light optical and scanning electron microscopy Conclusions drawn from the analyses, are used to create a meta-model. This model in the field of thin-walled structures made of duplex steel is intended to improve the predictability in order to be able to estimate the phase ratio in the weld by means of process parameters. To ensure realistic behavior, the formulation of boundary conditions covers the extremely high cooling rates and the small beam diameters during laser beam welding. By means of a correlation analysis, the individual characteristics of the process parameters are to be shown on the phase ratio. |