Effect of Zr on inclusions and microstructure of non-quenched and tempered steel F38MnVS
To examine the influence of Zr on the inclusions and microstructure of non-quenched and tempered F38MnVS steel, optical microscopy (OM), scanning electron microscopy (SEM), high-temperature laser confocal microscopy (HT-CLSM), transmission electron microscopy (TEM), and thermodynamic calculations am...
Saved in:
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-03-01
|
| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425001334 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832583865769656320 |
|---|---|
| author | Yucheng Wang Yang Li Zhouhua Jiang Meng Sun Shuai Ma Yunqie Mao Yanshuo Ma Tianci Li Dengyunfei Nie Rui Yang |
| author_facet | Yucheng Wang Yang Li Zhouhua Jiang Meng Sun Shuai Ma Yunqie Mao Yanshuo Ma Tianci Li Dengyunfei Nie Rui Yang |
| author_sort | Yucheng Wang |
| collection | DOAJ |
| description | To examine the influence of Zr on the inclusions and microstructure of non-quenched and tempered F38MnVS steel, optical microscopy (OM), scanning electron microscopy (SEM), high-temperature laser confocal microscopy (HT-CLSM), transmission electron microscopy (TEM), and thermodynamic calculations among others are utilized. The obtained results reveal that adding Zr could alter the inclusions from Al2O3 to ZrO2, and ZrN appears with the increase of Zr content. Additionally, 220 ppm Zr exhibits the best impact on the inclusion size, reducing the average diameter of the inclusions from 5.04 μm to 2.87 μm. At the same time, the addition of Zr causes the austenite grain size to decrease and more intragranular ferrite appears. By appropriately evaluating the Zener pinning force, the Zener pinning force of the experimental group with a Zr content of 220 ppm is obtained as 0.034 J/mol, which possesses a more pronounced pinning effect on the austenite grain boundaries compared with 0 ppm Zr. By evaluating the mismatch degree, the mismatch degree between ZrO2 and α-Fe is predicted to be 6.9%, so it can be utilized as an effective heterogeneous nucleation core to induce α-Fe nucleation. In conjunction with the manganese-depleted zone theory, both of them jointly promote the nucleation of α-Fe. The findings of this study can serve as a fairly solid basis for using Zr treatment in the preparation of non-quenched and tempered steel for automotive applications. |
| format | Article |
| id | doaj-art-c404e2120d5e49c1aad93e369c9014ee |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-c404e2120d5e49c1aad93e369c9014ee2025-01-28T04:14:40ZengElsevierJournal of Materials Research and Technology2238-78542025-03-013520752086Effect of Zr on inclusions and microstructure of non-quenched and tempered steel F38MnVSYucheng Wang0Yang Li1Zhouhua Jiang2Meng Sun3Shuai Ma4Yunqie Mao5Yanshuo Ma6Tianci Li7Dengyunfei Nie8Rui Yang9School of Metallurgy, Northeastern University, Shenyang, 110819, Liaoning, ChinaCorresponding author.; School of Metallurgy, Northeastern University, Shenyang, 110819, Liaoning, ChinaSchool of Metallurgy, Northeastern University, Shenyang, 110819, Liaoning, ChinaSchool of Metallurgy, Northeastern University, Shenyang, 110819, Liaoning, ChinaSchool of Metallurgy, Northeastern University, Shenyang, 110819, Liaoning, ChinaSchool of Metallurgy, Northeastern University, Shenyang, 110819, Liaoning, ChinaSchool of Metallurgy, Northeastern University, Shenyang, 110819, Liaoning, ChinaSchool of Metallurgy, Northeastern University, Shenyang, 110819, Liaoning, ChinaSchool of Metallurgy, Northeastern University, Shenyang, 110819, Liaoning, ChinaSchool of Metallurgy, Northeastern University, Shenyang, 110819, Liaoning, ChinaTo examine the influence of Zr on the inclusions and microstructure of non-quenched and tempered F38MnVS steel, optical microscopy (OM), scanning electron microscopy (SEM), high-temperature laser confocal microscopy (HT-CLSM), transmission electron microscopy (TEM), and thermodynamic calculations among others are utilized. The obtained results reveal that adding Zr could alter the inclusions from Al2O3 to ZrO2, and ZrN appears with the increase of Zr content. Additionally, 220 ppm Zr exhibits the best impact on the inclusion size, reducing the average diameter of the inclusions from 5.04 μm to 2.87 μm. At the same time, the addition of Zr causes the austenite grain size to decrease and more intragranular ferrite appears. By appropriately evaluating the Zener pinning force, the Zener pinning force of the experimental group with a Zr content of 220 ppm is obtained as 0.034 J/mol, which possesses a more pronounced pinning effect on the austenite grain boundaries compared with 0 ppm Zr. By evaluating the mismatch degree, the mismatch degree between ZrO2 and α-Fe is predicted to be 6.9%, so it can be utilized as an effective heterogeneous nucleation core to induce α-Fe nucleation. In conjunction with the manganese-depleted zone theory, both of them jointly promote the nucleation of α-Fe. The findings of this study can serve as a fairly solid basis for using Zr treatment in the preparation of non-quenched and tempered steel for automotive applications.http://www.sciencedirect.com/science/article/pii/S2238785425001334ZirconiumNon-quenched and tempered steelInclusionsMicrostructureMismatch degree |
| spellingShingle | Yucheng Wang Yang Li Zhouhua Jiang Meng Sun Shuai Ma Yunqie Mao Yanshuo Ma Tianci Li Dengyunfei Nie Rui Yang Effect of Zr on inclusions and microstructure of non-quenched and tempered steel F38MnVS Journal of Materials Research and Technology Zirconium Non-quenched and tempered steel Inclusions Microstructure Mismatch degree |
| title | Effect of Zr on inclusions and microstructure of non-quenched and tempered steel F38MnVS |
| title_full | Effect of Zr on inclusions and microstructure of non-quenched and tempered steel F38MnVS |
| title_fullStr | Effect of Zr on inclusions and microstructure of non-quenched and tempered steel F38MnVS |
| title_full_unstemmed | Effect of Zr on inclusions and microstructure of non-quenched and tempered steel F38MnVS |
| title_short | Effect of Zr on inclusions and microstructure of non-quenched and tempered steel F38MnVS |
| title_sort | effect of zr on inclusions and microstructure of non quenched and tempered steel f38mnvs |
| topic | Zirconium Non-quenched and tempered steel Inclusions Microstructure Mismatch degree |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425001334 |
| work_keys_str_mv | AT yuchengwang effectofzroninclusionsandmicrostructureofnonquenchedandtemperedsteelf38mnvs AT yangli effectofzroninclusionsandmicrostructureofnonquenchedandtemperedsteelf38mnvs AT zhouhuajiang effectofzroninclusionsandmicrostructureofnonquenchedandtemperedsteelf38mnvs AT mengsun effectofzroninclusionsandmicrostructureofnonquenchedandtemperedsteelf38mnvs AT shuaima effectofzroninclusionsandmicrostructureofnonquenchedandtemperedsteelf38mnvs AT yunqiemao effectofzroninclusionsandmicrostructureofnonquenchedandtemperedsteelf38mnvs AT yanshuoma effectofzroninclusionsandmicrostructureofnonquenchedandtemperedsteelf38mnvs AT tiancili effectofzroninclusionsandmicrostructureofnonquenchedandtemperedsteelf38mnvs AT dengyunfeinie effectofzroninclusionsandmicrostructureofnonquenchedandtemperedsteelf38mnvs AT ruiyang effectofzroninclusionsandmicrostructureofnonquenchedandtemperedsteelf38mnvs |