| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials Processing Fundamentals
|
| Presentation Title |
M-66: Effects of Welding Conditions and Post Weld Heat Treatment on Precipitation of Widmanstätten-austenite of Duplex Stainless Steels |
| Author(s) |
Yunxing Xia, Xiaofu Zhang, Fumikau Miyasaka, Hiroaki Mori |
| On-Site Speaker (Planned) |
Yunxing Xia |
| Abstract Scope |
The results of the laser welding of duplex stainless steels, super duplex and Lean duplex showed that the structure of the weld zone was significantly different between the steel grades, it was found that the increase in welding speed significantly reduced the formation of the austenite phase. To counterbalance the rate of ferrite phase /austenite phase by using the laser surface treatment after welding, it has become possible to recover a part of the content of the austenite phase even in the laser welded portion. Further, the microstructure of the austenite phase in laser welding portion which was precipitated due to the rapid cooling effect was observed by after using an etching solution. |
| Proceedings Inclusion? |
Planned: |