In-situ synthesized WC reinforcement phase on microstructural evolution, toughness and tribological properties of Mo2FeB2-based composite coatings fabricated by laser cladding
The Mo2FeB2 composite coatings with in-situ synthesized WC were fabricated using laser cladding technology onto AISI 1045 steel substrate using pre-placed method. The microstructure and phase were characterized using a field emission scanning electron microscope and X-ray diffractometry. Microhardne...
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Elsevier
2025-01-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424029016 |
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| author | Hao Zhang Yang Zhang |
| author_facet | Hao Zhang Yang Zhang |
| author_sort | Hao Zhang |
| collection | DOAJ |
| description | The Mo2FeB2 composite coatings with in-situ synthesized WC were fabricated using laser cladding technology onto AISI 1045 steel substrate using pre-placed method. The microstructure and phase were characterized using a field emission scanning electron microscope and X-ray diffractometry. Microhardness was measured by a Vickers microhardness tester and analyzed using an optical microscope. Residual stress was evaluated using an X-ray residual stress tester. Wear resistance was assessed by a UMT-2 high load scratch tester. The microhardness, residual tensile stress, fracture toughness, coefficient of friction, and wear rate of Mo2FeB2-7wt.%WC composite coating were 1593.1 HV0.5, 285 MPa, 13.75 MPa‧m1/2, 0.32, and 3.42 × 10−5 mm3/N·m, respectively. Compared to the Mo2FeB2 coating, the microhardness, residual tensile stress, fracture toughness, and wear rate of Mo2FeB2-7wt.%WC composite coating was enhanced by 57%, 22.6%, 3.9% and 65.3%, respectively. The fracture mechanism was typical brittle fracture. Additionally, the wear mechanism shifted from adhesive wear to abrasive wear. The study provides the theoretical and practical guidance for improving the wear resistance and service life of Mo2FeB2 coating. |
| format | Article |
| id | doaj-art-b496858d2f364c2d872ea01b1923d60b |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
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| series | Journal of Materials Research and Technology |
| spelling | doaj-art-b496858d2f364c2d872ea01b1923d60b2025-01-19T06:25:27ZengElsevierJournal of Materials Research and Technology2238-78542025-01-0134677690In-situ synthesized WC reinforcement phase on microstructural evolution, toughness and tribological properties of Mo2FeB2-based composite coatings fabricated by laser claddingHao Zhang0Yang Zhang1College of Optoelectronic Manufacturing, Zhejiang Industry & Trade Vocational College, Wenzhou, 325003, ChinaSchool of Engineering + Technology, Western Carolina University, Cullowhee, NC, 28723, USA; Corresponding author.The Mo2FeB2 composite coatings with in-situ synthesized WC were fabricated using laser cladding technology onto AISI 1045 steel substrate using pre-placed method. The microstructure and phase were characterized using a field emission scanning electron microscope and X-ray diffractometry. Microhardness was measured by a Vickers microhardness tester and analyzed using an optical microscope. Residual stress was evaluated using an X-ray residual stress tester. Wear resistance was assessed by a UMT-2 high load scratch tester. The microhardness, residual tensile stress, fracture toughness, coefficient of friction, and wear rate of Mo2FeB2-7wt.%WC composite coating were 1593.1 HV0.5, 285 MPa, 13.75 MPa‧m1/2, 0.32, and 3.42 × 10−5 mm3/N·m, respectively. Compared to the Mo2FeB2 coating, the microhardness, residual tensile stress, fracture toughness, and wear rate of Mo2FeB2-7wt.%WC composite coating was enhanced by 57%, 22.6%, 3.9% and 65.3%, respectively. The fracture mechanism was typical brittle fracture. Additionally, the wear mechanism shifted from adhesive wear to abrasive wear. The study provides the theoretical and practical guidance for improving the wear resistance and service life of Mo2FeB2 coating.http://www.sciencedirect.com/science/article/pii/S2238785424029016Laser claddingMo2FeB2-WC composite coatingResidual stressFracture toughnessTribological properties |
| spellingShingle | Hao Zhang Yang Zhang In-situ synthesized WC reinforcement phase on microstructural evolution, toughness and tribological properties of Mo2FeB2-based composite coatings fabricated by laser cladding Journal of Materials Research and Technology Laser cladding Mo2FeB2-WC composite coating Residual stress Fracture toughness Tribological properties |
| title | In-situ synthesized WC reinforcement phase on microstructural evolution, toughness and tribological properties of Mo2FeB2-based composite coatings fabricated by laser cladding |
| title_full | In-situ synthesized WC reinforcement phase on microstructural evolution, toughness and tribological properties of Mo2FeB2-based composite coatings fabricated by laser cladding |
| title_fullStr | In-situ synthesized WC reinforcement phase on microstructural evolution, toughness and tribological properties of Mo2FeB2-based composite coatings fabricated by laser cladding |
| title_full_unstemmed | In-situ synthesized WC reinforcement phase on microstructural evolution, toughness and tribological properties of Mo2FeB2-based composite coatings fabricated by laser cladding |
| title_short | In-situ synthesized WC reinforcement phase on microstructural evolution, toughness and tribological properties of Mo2FeB2-based composite coatings fabricated by laser cladding |
| title_sort | in situ synthesized wc reinforcement phase on microstructural evolution toughness and tribological properties of mo2feb2 based composite coatings fabricated by laser cladding |
| topic | Laser cladding Mo2FeB2-WC composite coating Residual stress Fracture toughness Tribological properties |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424029016 |
| work_keys_str_mv | AT haozhang insitusynthesizedwcreinforcementphaseonmicrostructuralevolutiontoughnessandtribologicalpropertiesofmo2feb2basedcompositecoatingsfabricatedbylasercladding AT yangzhang insitusynthesizedwcreinforcementphaseonmicrostructuralevolutiontoughnessandtribologicalpropertiesofmo2feb2basedcompositecoatingsfabricatedbylasercladding |