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Effect of Sigma Phase in Wire Arc Additive Manufacturing of Superduplex Stainless Steel
| Content Provider | MDPI |
|---|---|
| Author | Ruben, Bjørge Ånes, Håkon Wiik Akselsen, Odd M. Ren, Xiaobo Nyhus, Bård |
| Copyright Year | 2021 |
| Description | In the present study, the thermal program in wire and arc additive manufacturing has been varied in terms of heat input and interpass temperature. Three walls were completed with subsequent Charpy V impact toughness and crack-tip opening displacement fracture toughness, together with a detailed microstructure characterization using light microscopy and scanning and transmission electron microscopy. The results clearly demonstrate that the formation of sigma phase may deteriorate the toughness of superduplex components. Such formation may take place under prolonged cooling time, which may occur when subsequent passes are deposited with too high interpass temperatures. This transformation behavior may limit the productivity in additive manufacturing of such steels and care must be taken in selection of proper combination of arc energy and interpass temperature. |
| Starting Page | 2045 |
| e-ISSN | 20754701 |
| DOI | 10.3390/met11122045 |
| Journal | Metals |
| Issue Number | 12 |
| Volume Number | 11 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-12-17 |
| Access Restriction | Open |
| Subject Keyword | Metals Anesthesiology Wire + Arc Additive Manufacturing Superduplex Stainless Steel Sigma Phase |
| Content Type | Text |
| Resource Type | Article |
