Effects of Y and Hf addition on soft magnetic property and ductility improvement of Fe–6.9 wt% Si alloy
Fe–6.9 wt% Si alloy is superior to conventional electrical steels containing 3 wt%Si in terms of soft magnetic performance at high frequencies but its lack of ductility resulting in large restriction on workability and shaping. In present investigation, an excellent ductile behavior was observed in...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-07-01
|
| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425015200 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849423216034971648 |
|---|---|
| author | Guojun Cai Yanru Huang Yongquan Qing R.D.K. Misra |
| author_facet | Guojun Cai Yanru Huang Yongquan Qing R.D.K. Misra |
| author_sort | Guojun Cai |
| collection | DOAJ |
| description | Fe–6.9 wt% Si alloy is superior to conventional electrical steels containing 3 wt%Si in terms of soft magnetic performance at high frequencies but its lack of ductility resulting in large restriction on workability and shaping. In present investigation, an excellent ductile behavior was observed in the Fe–6.9 wt% Si alloy containing Y and Hf, together with high magnetic induction B8 of 1.385 T and B50 of 1.661 T, as well as low core loss P10/1000 of 32.168 W/kg. Smaller-sized Y2O3 oxides were diffusely distributed in 6.9Si–0.03Y alloy, while the irregular larger-sized Y2Hf2O7 oxides were distribute randomly in grains and at grain boundaries of 6.9Si–0.03Y–0.2Hf alloy. Y-Hf-containing oxides caused the preferential nucleation advantage of λ oriented grains in the nucleation process and hindered the development of γ-fiber recrystallization textures during final annealing, leading to an excellent soft magnetic property of 6.9Si–0.03Y–0.2Hf alloy. Benefiting from the suppression of brittle ordered phases and the change of dislocation configuration, the fracture strain of alloy increased from 6.7 % to 9.0 % in 6.9Si–0.03Y sheet and showed an excellent ductility value of 11.4 % duo to Hf addition. Y and Hf complex oxides doped in alloy provided an effective approach for improving the ductility without deterioration of soft magnetic property of high silicon steels. |
| format | Article |
| id | doaj-art-2d154ace977543ee9c0b0f483d2ea118 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-2d154ace977543ee9c0b0f483d2ea1182025-08-20T03:30:44ZengElsevierJournal of Materials Research and Technology2238-78542025-07-01371362137810.1016/j.jmrt.2025.06.098Effects of Y and Hf addition on soft magnetic property and ductility improvement of Fe–6.9 wt% Si alloyGuojun Cai0Yanru Huang1Yongquan Qing2R.D.K. Misra3School of Mechanical Engineering, Liaoning Petrochemical University, Fushun, 113001, China; Corresponding author. School of Mechanical Engineering, Liaoning Petrochemical University, Fushun, 113001, China.College of Sciences, Liaoning Petrochemical University, Fushun, 113001, ChinaSchool of Materials Science and Engineering, Northeastern University, Shenyang, 110819, ChinaLaboratory for Excellence in Advanced Steel Research, Department of Metallurgical, Materials and Biomedical Engineering, University of Texas at El Paso, El Paso, TX, 79968, USAFe–6.9 wt% Si alloy is superior to conventional electrical steels containing 3 wt%Si in terms of soft magnetic performance at high frequencies but its lack of ductility resulting in large restriction on workability and shaping. In present investigation, an excellent ductile behavior was observed in the Fe–6.9 wt% Si alloy containing Y and Hf, together with high magnetic induction B8 of 1.385 T and B50 of 1.661 T, as well as low core loss P10/1000 of 32.168 W/kg. Smaller-sized Y2O3 oxides were diffusely distributed in 6.9Si–0.03Y alloy, while the irregular larger-sized Y2Hf2O7 oxides were distribute randomly in grains and at grain boundaries of 6.9Si–0.03Y–0.2Hf alloy. Y-Hf-containing oxides caused the preferential nucleation advantage of λ oriented grains in the nucleation process and hindered the development of γ-fiber recrystallization textures during final annealing, leading to an excellent soft magnetic property of 6.9Si–0.03Y–0.2Hf alloy. Benefiting from the suppression of brittle ordered phases and the change of dislocation configuration, the fracture strain of alloy increased from 6.7 % to 9.0 % in 6.9Si–0.03Y sheet and showed an excellent ductility value of 11.4 % duo to Hf addition. Y and Hf complex oxides doped in alloy provided an effective approach for improving the ductility without deterioration of soft magnetic property of high silicon steels.http://www.sciencedirect.com/science/article/pii/S2238785425015200Fe–6.9 wt% Si alloyYHfTextureDuctility |
| spellingShingle | Guojun Cai Yanru Huang Yongquan Qing R.D.K. Misra Effects of Y and Hf addition on soft magnetic property and ductility improvement of Fe–6.9 wt% Si alloy Journal of Materials Research and Technology Fe–6.9 wt% Si alloy Y Hf Texture Ductility |
| title | Effects of Y and Hf addition on soft magnetic property and ductility improvement of Fe–6.9 wt% Si alloy |
| title_full | Effects of Y and Hf addition on soft magnetic property and ductility improvement of Fe–6.9 wt% Si alloy |
| title_fullStr | Effects of Y and Hf addition on soft magnetic property and ductility improvement of Fe–6.9 wt% Si alloy |
| title_full_unstemmed | Effects of Y and Hf addition on soft magnetic property and ductility improvement of Fe–6.9 wt% Si alloy |
| title_short | Effects of Y and Hf addition on soft magnetic property and ductility improvement of Fe–6.9 wt% Si alloy |
| title_sort | effects of y and hf addition on soft magnetic property and ductility improvement of fe 6 9 wt si alloy |
| topic | Fe–6.9 wt% Si alloy Y Hf Texture Ductility |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425015200 |
| work_keys_str_mv | AT guojuncai effectsofyandhfadditiononsoftmagneticpropertyandductilityimprovementoffe69wtsialloy AT yanruhuang effectsofyandhfadditiononsoftmagneticpropertyandductilityimprovementoffe69wtsialloy AT yongquanqing effectsofyandhfadditiononsoftmagneticpropertyandductilityimprovementoffe69wtsialloy AT rdkmisra effectsofyandhfadditiononsoftmagneticpropertyandductilityimprovementoffe69wtsialloy |