The in-situ formation and service behavior of spherical FeNi@SiC magnetic abrasives with core-shell structure
The surface roughness (Ra) of thermal barrier coatings (TBCs) is a critical indicator that significantly influences the service performance of engine blades. Silicon carbide (SiC) shows great potential as the hard phase in magnetic abrasive to reduce roughness. However, challenges remain regarding t...
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/S2238785425002261 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832540403625099264 |
|---|---|
| author | Bo Cheng Ruirui Chen Bei Yang Guodong Liang Xinjian Zhang Wensheng Li |
| author_facet | Bo Cheng Ruirui Chen Bei Yang Guodong Liang Xinjian Zhang Wensheng Li |
| author_sort | Bo Cheng |
| collection | DOAJ |
| description | The surface roughness (Ra) of thermal barrier coatings (TBCs) is a critical indicator that significantly influences the service performance of engine blades. Silicon carbide (SiC) shows great potential as the hard phase in magnetic abrasive to reduce roughness. However, challenges remain regarding the mechanisms of hard phase damage and the difficulties in preparing SiC-based magnetic abrasives. In this paper, nanoindentation simulation were conducted to investigate the damage to the hard phase (SiC). The results indicate that the material beneath a spherical indenter is prone to failure through the formation of a ring-shaped crack that expands towards the surface. In contrast, a conical indenter behaves similarly to a pyramid indenter, with greater shear strain concentrated at the tip and extending along the sides. Subsequently, spherical FeNi@SiC magnetic abrasives were in-situ prepared using different silicon and carbon sources for magnetic finishing of TBCs. The results demonstrate that SiC phase content on the surface of magnetic abrasive prepared with polycarbosilane (PCS) as the carbon source reached 50.6%. Meanwhile, after 40 min of finishing, the Ra of Gd2Zr2O7 ceramic layers decreased from 8.076 μm to 3.427 μm, and the magnetic abrasives exhibited a good lifespan. The findings of this study can support the development of surface finishing techniques for aero-engine TBCs. |
| format | Article |
| id | doaj-art-847d885dea4f4cd59316cd4d8233a139 |
| 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-847d885dea4f4cd59316cd4d8233a1392025-02-05T04:32:09ZengElsevierJournal of Materials Research and Technology2238-78542025-03-013528152825The in-situ formation and service behavior of spherical FeNi@SiC magnetic abrasives with core-shell structureBo Cheng0Ruirui Chen1Bei Yang2Guodong Liang3Xinjian Zhang4Wensheng Li5State Key Laboratory of Advanced Processing and Recycling of No-ferrous Metals, School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, Gansu, 730050, China; Corresponding author.State Key Laboratory of Advanced Processing and Recycling of No-ferrous Metals, School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, Gansu, 730050, ChinaState Key Laboratory of Advanced Processing and Recycling of No-ferrous Metals, School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, Gansu, 730050, ChinaState Key Laboratory of Advanced Processing and Recycling of No-ferrous Metals, School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, Gansu, 730050, ChinaState Key Laboratory of Advanced Processing and Recycling of No-ferrous Metals, School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, Gansu, 730050, ChinaState Key Laboratory of Advanced Processing and Recycling of No-ferrous Metals, School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, Gansu, 730050, China; School of Physics and Electronic Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, China; Corresponding author. State Key Laboratory of Advanced Processing and Recycling of No-ferrous Metals, School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, Gansu, 730050, ChinaThe surface roughness (Ra) of thermal barrier coatings (TBCs) is a critical indicator that significantly influences the service performance of engine blades. Silicon carbide (SiC) shows great potential as the hard phase in magnetic abrasive to reduce roughness. However, challenges remain regarding the mechanisms of hard phase damage and the difficulties in preparing SiC-based magnetic abrasives. In this paper, nanoindentation simulation were conducted to investigate the damage to the hard phase (SiC). The results indicate that the material beneath a spherical indenter is prone to failure through the formation of a ring-shaped crack that expands towards the surface. In contrast, a conical indenter behaves similarly to a pyramid indenter, with greater shear strain concentrated at the tip and extending along the sides. Subsequently, spherical FeNi@SiC magnetic abrasives were in-situ prepared using different silicon and carbon sources for magnetic finishing of TBCs. The results demonstrate that SiC phase content on the surface of magnetic abrasive prepared with polycarbosilane (PCS) as the carbon source reached 50.6%. Meanwhile, after 40 min of finishing, the Ra of Gd2Zr2O7 ceramic layers decreased from 8.076 μm to 3.427 μm, and the magnetic abrasives exhibited a good lifespan. The findings of this study can support the development of surface finishing techniques for aero-engine TBCs.http://www.sciencedirect.com/science/article/pii/S2238785425002261TBCsMagnetic abrasive finishingHard phase damageNanoindentation simulation |
| spellingShingle | Bo Cheng Ruirui Chen Bei Yang Guodong Liang Xinjian Zhang Wensheng Li The in-situ formation and service behavior of spherical FeNi@SiC magnetic abrasives with core-shell structure Journal of Materials Research and Technology TBCs Magnetic abrasive finishing Hard phase damage Nanoindentation simulation |
| title | The in-situ formation and service behavior of spherical FeNi@SiC magnetic abrasives with core-shell structure |
| title_full | The in-situ formation and service behavior of spherical FeNi@SiC magnetic abrasives with core-shell structure |
| title_fullStr | The in-situ formation and service behavior of spherical FeNi@SiC magnetic abrasives with core-shell structure |
| title_full_unstemmed | The in-situ formation and service behavior of spherical FeNi@SiC magnetic abrasives with core-shell structure |
| title_short | The in-situ formation and service behavior of spherical FeNi@SiC magnetic abrasives with core-shell structure |
| title_sort | in situ formation and service behavior of spherical feni sic magnetic abrasives with core shell structure |
| topic | TBCs Magnetic abrasive finishing Hard phase damage Nanoindentation simulation |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425002261 |
| work_keys_str_mv | AT bocheng theinsituformationandservicebehaviorofsphericalfenisicmagneticabrasiveswithcoreshellstructure AT ruiruichen theinsituformationandservicebehaviorofsphericalfenisicmagneticabrasiveswithcoreshellstructure AT beiyang theinsituformationandservicebehaviorofsphericalfenisicmagneticabrasiveswithcoreshellstructure AT guodongliang theinsituformationandservicebehaviorofsphericalfenisicmagneticabrasiveswithcoreshellstructure AT xinjianzhang theinsituformationandservicebehaviorofsphericalfenisicmagneticabrasiveswithcoreshellstructure AT wenshengli theinsituformationandservicebehaviorofsphericalfenisicmagneticabrasiveswithcoreshellstructure AT bocheng insituformationandservicebehaviorofsphericalfenisicmagneticabrasiveswithcoreshellstructure AT ruiruichen insituformationandservicebehaviorofsphericalfenisicmagneticabrasiveswithcoreshellstructure AT beiyang insituformationandservicebehaviorofsphericalfenisicmagneticabrasiveswithcoreshellstructure AT guodongliang insituformationandservicebehaviorofsphericalfenisicmagneticabrasiveswithcoreshellstructure AT xinjianzhang insituformationandservicebehaviorofsphericalfenisicmagneticabrasiveswithcoreshellstructure AT wenshengli insituformationandservicebehaviorofsphericalfenisicmagneticabrasiveswithcoreshellstructure |