Preparation and high temperature tribological properties of laser in-situ synthesized self-lubricating composite coating on 304 stainless steel
An in-situ synthesized self-lubricating anti-wear composite coating was prepared with mixed Ni60-TiC-WS2 precursor powders on the surface of 304 stainless steel by high-energy laser beam. The microstructure and microhardness of the composite coating and substrate were characterized by X-ray diffract...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2020-07-01
|
| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785420312746 |
| _version_ | 1818279727985590272 |
|---|---|
| author | Chun-Sheng OuYang Xiu-Bo Liu Ying-She Luo Jue Liang Mian Wang De-Qiang Chen |
| author_facet | Chun-Sheng OuYang Xiu-Bo Liu Ying-She Luo Jue Liang Mian Wang De-Qiang Chen |
| author_sort | Chun-Sheng OuYang |
| collection | DOAJ |
| description | An in-situ synthesized self-lubricating anti-wear composite coating was prepared with mixed Ni60-TiC-WS2 precursor powders on the surface of 304 stainless steel by high-energy laser beam. The microstructure and microhardness of the composite coating and substrate were characterized by X-ray diffraction (XRD), optical microscopy (OM), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDS), and Vickers hardness test. The tribological properties and the related wear mechanisms of the composite coating and the substrate were systematically studied at RT, 300, 600 and 800 °C, respectively. The correlative results reveal that solid solution Cr0.19Fe0.7Ni0.11, self-lubricating sulfides Ti2CS/CrS/WS2 and hard ceramic particle Fe2C/Cr7C3 are in-situ synthesized in molten pool during laser process. Microstructure of the upper area of the coating is primarily composed of long strip structure, continuous matrix, white granular structure and rod structure. However, the cellular dendrites that formed during the solidification process were aggregated in the bottom area of the coating, which deteriorate the mechanical properties of the coating. The average microhardness of the composite coating (302.0 HV0.5) is slightly higher than that of the substrate (257.2 HV0.5), this is due to the more sulfides and iron compounds were in-situ synthesized in the molten pool, which was formed by the irradiation of the high-energy laser beam. At all test temperatures, the coefficient of friction (COF) and wear rate of the coating are lower than that of the substrate. The minimum COF of the coating (0.3031) appears at 300 °C, and the wear resistance of the coating is the best at 600 °C, with a wear rate of 9.699 × 10−5 mm3/Nm. |
| first_indexed | 2024-12-12T23:37:56Z |
| format | Article |
| id | doaj.art-39624c845263463b86b55ed1c6cd4663 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-12-12T23:37:56Z |
| publishDate | 2020-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-39624c845263463b86b55ed1c6cd46632022-12-22T00:07:19ZengElsevierJournal of Materials Research and Technology2238-78542020-07-019470347046Preparation and high temperature tribological properties of laser in-situ synthesized self-lubricating composite coating on 304 stainless steelChun-Sheng OuYang0Xiu-Bo Liu1Ying-She Luo2Jue Liang3Mian Wang4De-Qiang Chen5Hunan Province Key Laboratory of Materials Surface/Interface Science & Technology, Central South University of Forestry & Technology, Changsha 410004, China; Hunan Province Key Laboratory of Engineering Rheology, Central South University of Forestry & Technology, Changsha 410004, ChinaHunan Province Key Laboratory of Materials Surface/Interface Science & Technology, Central South University of Forestry & Technology, Changsha 410004, China; State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Hunan Province Key Laboratory of Engineering Rheology, Central South University of Forestry & Technology, Changsha 410004, China; Corresponding author.Hunan Institute of Traffic Engineering, Hengyang 421000, China; Hunan Province Key Laboratory of Engineering Rheology, Central South University of Forestry & Technology, Changsha 410004, China; Corresponding author.Hunan Province Key Laboratory of Materials Surface/Interface Science & Technology, Central South University of Forestry & Technology, Changsha 410004, China; Hunan Province Key Laboratory of Engineering Rheology, Central South University of Forestry & Technology, Changsha 410004, ChinaHunan Province Key Laboratory of Materials Surface/Interface Science & Technology, Central South University of Forestry & Technology, Changsha 410004, China; Hunan Province Key Laboratory of Engineering Rheology, Central South University of Forestry & Technology, Changsha 410004, ChinaNational United Engineering Laboratory for Advanced Bearing Tribology, Henan University of Science & Technology, Luoyang 471003, ChinaAn in-situ synthesized self-lubricating anti-wear composite coating was prepared with mixed Ni60-TiC-WS2 precursor powders on the surface of 304 stainless steel by high-energy laser beam. The microstructure and microhardness of the composite coating and substrate were characterized by X-ray diffraction (XRD), optical microscopy (OM), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDS), and Vickers hardness test. The tribological properties and the related wear mechanisms of the composite coating and the substrate were systematically studied at RT, 300, 600 and 800 °C, respectively. The correlative results reveal that solid solution Cr0.19Fe0.7Ni0.11, self-lubricating sulfides Ti2CS/CrS/WS2 and hard ceramic particle Fe2C/Cr7C3 are in-situ synthesized in molten pool during laser process. Microstructure of the upper area of the coating is primarily composed of long strip structure, continuous matrix, white granular structure and rod structure. However, the cellular dendrites that formed during the solidification process were aggregated in the bottom area of the coating, which deteriorate the mechanical properties of the coating. The average microhardness of the composite coating (302.0 HV0.5) is slightly higher than that of the substrate (257.2 HV0.5), this is due to the more sulfides and iron compounds were in-situ synthesized in the molten pool, which was formed by the irradiation of the high-energy laser beam. At all test temperatures, the coefficient of friction (COF) and wear rate of the coating are lower than that of the substrate. The minimum COF of the coating (0.3031) appears at 300 °C, and the wear resistance of the coating is the best at 600 °C, with a wear rate of 9.699 × 10−5 mm3/Nm.http://www.sciencedirect.com/science/article/pii/S2238785420312746304 stainless steelLaser processingSolid lubricationTribological performance |
| spellingShingle | Chun-Sheng OuYang Xiu-Bo Liu Ying-She Luo Jue Liang Mian Wang De-Qiang Chen Preparation and high temperature tribological properties of laser in-situ synthesized self-lubricating composite coating on 304 stainless steel Journal of Materials Research and Technology 304 stainless steel Laser processing Solid lubrication Tribological performance |
| title | Preparation and high temperature tribological properties of laser in-situ synthesized self-lubricating composite coating on 304 stainless steel |
| title_full | Preparation and high temperature tribological properties of laser in-situ synthesized self-lubricating composite coating on 304 stainless steel |
| title_fullStr | Preparation and high temperature tribological properties of laser in-situ synthesized self-lubricating composite coating on 304 stainless steel |
| title_full_unstemmed | Preparation and high temperature tribological properties of laser in-situ synthesized self-lubricating composite coating on 304 stainless steel |
| title_short | Preparation and high temperature tribological properties of laser in-situ synthesized self-lubricating composite coating on 304 stainless steel |
| title_sort | preparation and high temperature tribological properties of laser in situ synthesized self lubricating composite coating on 304 stainless steel |
| topic | 304 stainless steel Laser processing Solid lubrication Tribological performance |
| url | http://www.sciencedirect.com/science/article/pii/S2238785420312746 |
| work_keys_str_mv | AT chunshengouyang preparationandhightemperaturetribologicalpropertiesoflaserinsitusynthesizedselflubricatingcompositecoatingon304stainlesssteel AT xiuboliu preparationandhightemperaturetribologicalpropertiesoflaserinsitusynthesizedselflubricatingcompositecoatingon304stainlesssteel AT yingsheluo preparationandhightemperaturetribologicalpropertiesoflaserinsitusynthesizedselflubricatingcompositecoatingon304stainlesssteel AT jueliang preparationandhightemperaturetribologicalpropertiesoflaserinsitusynthesizedselflubricatingcompositecoatingon304stainlesssteel AT mianwang preparationandhightemperaturetribologicalpropertiesoflaserinsitusynthesizedselflubricatingcompositecoatingon304stainlesssteel AT deqiangchen preparationandhightemperaturetribologicalpropertiesoflaserinsitusynthesizedselflubricatingcompositecoatingon304stainlesssteel |