Effect of TiN on Sulfide Morphology of Non-Quenched and Tempered Steel
In this paper, non-quenched and tempered steel was selected to observe sulfide inclusions in as-cast and forged steel with different Ti and N contents, and analyzed the influence of TiN on the precipitation, morphology, distribution and composition of MnS. The precipitation of MnS and TiN in liquid-...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-08-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/12/9/1402 |
| _version_ | 1797484890468384768 |
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| author | Huajie Wu Xin Li Zhe Wang Wei Liu |
| author_facet | Huajie Wu Xin Li Zhe Wang Wei Liu |
| author_sort | Huajie Wu |
| collection | DOAJ |
| description | In this paper, non-quenched and tempered steel was selected to observe sulfide inclusions in as-cast and forged steel with different Ti and N contents, and analyzed the influence of TiN on the precipitation, morphology, distribution and composition of MnS. The precipitation of MnS and TiN in liquid-phase, solid–liquid two-phase region and solid phase was comparatively analyzed from a thermodynamic perspective, and the effect of the thermodynamic precipitation sequence on composite sulfide was explored. It was found that the change in Ti content had little effect on the morphology of sulfide in its as-cast state, and the composite sulfide was more spindle-like in the forged state. The increase in Ti and N content will increase the content of composite sulfide containing TiN in the steel, especially the number of MnS with TiN as the nucleation core. The initial precipitation temperature of TiN is higher than that of MnS, which provides a thermodynamic explanation for the existence of composite manganese sulfide containing TiN. Titanium treatment provides a new way to improve sulfide morphology. |
| first_indexed | 2024-03-09T23:10:59Z |
| format | Article |
| id | doaj.art-aa9b66531a5e401f8dddcb90f179fd2b |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T23:10:59Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-aa9b66531a5e401f8dddcb90f179fd2b2023-11-23T17:45:27ZengMDPI AGMetals2075-47012022-08-01129140210.3390/met12091402Effect of TiN on Sulfide Morphology of Non-Quenched and Tempered SteelHuajie Wu0Xin Li1Zhe Wang2Wei Liu3Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, ChinaCollaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Urban Economics and Management, Beijing University of Civil Engineering and Architecture, Beijing 100044, ChinaCollaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, ChinaIn this paper, non-quenched and tempered steel was selected to observe sulfide inclusions in as-cast and forged steel with different Ti and N contents, and analyzed the influence of TiN on the precipitation, morphology, distribution and composition of MnS. The precipitation of MnS and TiN in liquid-phase, solid–liquid two-phase region and solid phase was comparatively analyzed from a thermodynamic perspective, and the effect of the thermodynamic precipitation sequence on composite sulfide was explored. It was found that the change in Ti content had little effect on the morphology of sulfide in its as-cast state, and the composite sulfide was more spindle-like in the forged state. The increase in Ti and N content will increase the content of composite sulfide containing TiN in the steel, especially the number of MnS with TiN as the nucleation core. The initial precipitation temperature of TiN is higher than that of MnS, which provides a thermodynamic explanation for the existence of composite manganese sulfide containing TiN. Titanium treatment provides a new way to improve sulfide morphology.https://www.mdpi.com/2075-4701/12/9/1402non-quenched and tempered steelMnSTiNsolidification precipitationinclusion morphology |
| spellingShingle | Huajie Wu Xin Li Zhe Wang Wei Liu Effect of TiN on Sulfide Morphology of Non-Quenched and Tempered Steel Metals non-quenched and tempered steel MnS TiN solidification precipitation inclusion morphology |
| title | Effect of TiN on Sulfide Morphology of Non-Quenched and Tempered Steel |
| title_full | Effect of TiN on Sulfide Morphology of Non-Quenched and Tempered Steel |
| title_fullStr | Effect of TiN on Sulfide Morphology of Non-Quenched and Tempered Steel |
| title_full_unstemmed | Effect of TiN on Sulfide Morphology of Non-Quenched and Tempered Steel |
| title_short | Effect of TiN on Sulfide Morphology of Non-Quenched and Tempered Steel |
| title_sort | effect of tin on sulfide morphology of non quenched and tempered steel |
| topic | non-quenched and tempered steel MnS TiN solidification precipitation inclusion morphology |
| url | https://www.mdpi.com/2075-4701/12/9/1402 |
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