The Controlled Compound Layer of Ni-Coated Nitrided Pure Iron
In order not to sacrifice nitrided layer thickness and reduce brittle compound layer thickness, Ni-coated pretreatment was carried out with electrodeposition on a pure iron surface, followed by gas nitriding. The brittle compound layer thickness of duplex surface treated samples was reduced, and the...
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| Format: | Article |
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MDPI AG
2020-12-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/11/1/31 |
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| author | Qianqian Shen Yu Zhang Xuesha Li Li Xiang Chaoyin Nie |
| author_facet | Qianqian Shen Yu Zhang Xuesha Li Li Xiang Chaoyin Nie |
| author_sort | Qianqian Shen |
| collection | DOAJ |
| description | In order not to sacrifice nitrided layer thickness and reduce brittle compound layer thickness, Ni-coated pretreatment was carried out with electrodeposition on a pure iron surface, followed by gas nitriding. The brittle compound layer thickness of duplex surface treated samples was reduced, and the nitrided layer thickness increased to 320 μm. The microhardness was 4 times harder, and the wear loss was reduced by 68% compared with the original material. The results indicate that Ni-coated pretreatment could effectively improve microhardness and wear resistance and realize the controlled microstructure of a brittle compound layer of pure iron without compromising nitrided layer thickness. Ni coating plays an important role in ammonia adsorption and decomposition, and in the transfer of active nitrogen atoms during nitriding. |
| first_indexed | 2024-03-10T13:47:05Z |
| format | Article |
| id | doaj.art-09e17c1b93964d87a2fb349ae970ccfd |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T13:47:05Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-09e17c1b93964d87a2fb349ae970ccfd2023-11-21T02:28:59ZengMDPI AGNanomaterials2079-49912020-12-011113110.3390/nano11010031The Controlled Compound Layer of Ni-Coated Nitrided Pure IronQianqian Shen0Yu Zhang1Xuesha Li2Li Xiang3Chaoyin Nie4School of Materials and Energy, Southwest University, Chongqing 400715, ChinaSchool of Materials and Energy, Southwest University, Chongqing 400715, ChinaSchool of Materials and Energy, Southwest University, Chongqing 400715, ChinaSchool of Materials and Energy, Southwest University, Chongqing 400715, ChinaSchool of Materials and Energy, Southwest University, Chongqing 400715, ChinaIn order not to sacrifice nitrided layer thickness and reduce brittle compound layer thickness, Ni-coated pretreatment was carried out with electrodeposition on a pure iron surface, followed by gas nitriding. The brittle compound layer thickness of duplex surface treated samples was reduced, and the nitrided layer thickness increased to 320 μm. The microhardness was 4 times harder, and the wear loss was reduced by 68% compared with the original material. The results indicate that Ni-coated pretreatment could effectively improve microhardness and wear resistance and realize the controlled microstructure of a brittle compound layer of pure iron without compromising nitrided layer thickness. Ni coating plays an important role in ammonia adsorption and decomposition, and in the transfer of active nitrogen atoms during nitriding.https://www.mdpi.com/2079-4991/11/1/31Ni-coated pretreatmentmicrostructurecompound layernitrided layereffective hardened layerwear resistance |
| spellingShingle | Qianqian Shen Yu Zhang Xuesha Li Li Xiang Chaoyin Nie The Controlled Compound Layer of Ni-Coated Nitrided Pure Iron Nanomaterials Ni-coated pretreatment microstructure compound layer nitrided layer effective hardened layer wear resistance |
| title | The Controlled Compound Layer of Ni-Coated Nitrided Pure Iron |
| title_full | The Controlled Compound Layer of Ni-Coated Nitrided Pure Iron |
| title_fullStr | The Controlled Compound Layer of Ni-Coated Nitrided Pure Iron |
| title_full_unstemmed | The Controlled Compound Layer of Ni-Coated Nitrided Pure Iron |
| title_short | The Controlled Compound Layer of Ni-Coated Nitrided Pure Iron |
| title_sort | controlled compound layer of ni coated nitrided pure iron |
| topic | Ni-coated pretreatment microstructure compound layer nitrided layer effective hardened layer wear resistance |
| url | https://www.mdpi.com/2079-4991/11/1/31 |
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