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| Content Provider | Springer Nature Link |
|---|---|
| Author | Yin, Xue Sun, Yanhui Yang, Yindong Bai, Xuefeng Barati, Mansoor Mclean, Alex |
| Copyright Year | 2016 |
| Abstract | The behavior and formation mechanisms of inclusions in Ti-stabilized, 17Cr Austenitic Stainless Steel produced by the ingot casting route were investigated through systematic sampling of liquid steel and rolled products. Analysis methods included total oxygen and nitrogen contents, optical microscopy, scanning electron microscopy, and energy-dispersive X-ray spectroscopy. The results indicate that the composition of inclusions was strongly dependent on the types of added alloying agents. During the AOD refining process, after the addition of ferrosilicon alloy and electrolytic manganese, followed by aluminum, the composition of inclusions changed from manganese silicate-rich inclusions to alumina-rich inclusions. After tapping and titanium wire feeding, pure TiN particles and complex inclusions with Al$_{2}$O$_{3}$-MgO-TiO$_{ x }$ cores containing TiN were found to be the dominant inclusions when [pct Ti] was 0.307 mass pct in the molten steel. These findings were confirmed by thermodynamic calculations which indicated that there was a driving force for TiN inclusions to be formed in the liquid phase due to the high contents of [Ti] and [N] in the molten steel. From the start of casting through to the rolled bar, there was no further change in the composition of inclusions compared to the titanium addition stage. Stringer-shaped TiN inclusions were observed in the rolled bar. These inclusions were elongated along the rolling direction with lengths varying from 17 to 84 µm and could have a detrimental impact on the corrosion resistance as well as the mechanical properties of the stainless steel products. |
| Starting Page | 3274 |
| Ending Page | 3284 |
| Page Count | 11 |
| File Format | |
| ISSN | 10735615 |
| Journal | Metallurgical and Materials Transactions B |
| Volume Number | 47 |
| Issue Number | 6 |
| e-ISSN | 15431916 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2016-04-25 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Metallic Materials Characterization and Evaluation of Materials Structural Materials Surfaces and Interfaces, Thin Films Nanotechnology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Materials Chemistry Metals and Alloys Mechanics of Materials Condensed Matter Physics |
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