Study on Microstructure and Wear Resistance of Ni60-WC Composite Coatings Fabricated by Plasma–Laser Hybrid Cladding.
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| Title: | Study on Microstructure and Wear Resistance of Ni60-WC Composite Coatings Fabricated by Plasma–Laser Hybrid Cladding. |
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| Authors: | Li, Jiacheng1 (AUTHOR), Wang, Jinyi1,2 (AUTHOR), Zhan, Zhaoqing1,3 (AUTHOR), Zhao, Xiaopeng1,2 (AUTHOR), Jiang, Haoli1,2 (AUTHOR), Min, Fanlu3 (AUTHOR), Zhang, Jianfeng1 (AUTHOR) jfzhang_sic@163.com |
| Source: | Materials (1996-1944). Apr2026, Vol. 19 Issue 8, p1572. 17p. |
| Subjects: | Composite coating, Metal cladding, Microstructure, Wear resistance, Plasma deposition, Microhardness, Laser deposition, Cutting tools |
| Abstract: | The efficient fabrication of high-quality Ni60-WC composite coatings with low dilution and defect density remains a challenge for wear-critical tunneling cutters. In this study, a plasma–laser hybrid cladding (PLHC) strategy was developed to fabricate Ni60-40 wt% WC composite coatings, and their microstructures and properties were systematically compared with those produced by plasma cladding (PC) and laser cladding (LC). The PLHC coatings exhibit a low dilution rate of 10.7% and an ultra-low porosity of 0.2%, indicating improved metallurgical integrity. Microstructural analysis reveals that the hybrid energy input effectively suppresses WC dissolution and promotes a refined, uniformly distributed hard-phase network within the Ni-based matrix. As a result, the PLHC coatings achieve a high average microhardness of 1187.83 HV1.0 and superior wear resistance, with a wear volume of 24.69 × 10−3 mm3 under a 200 N load, representing reductions of 53.6% and 20.9% compared with PC and LC coatings, respectively. These results demonstrate the effectiveness of plasma–laser hybrid cladding in tailoring the microstructure–property relationship of WC-reinforced composite coatings. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | The efficient fabrication of high-quality Ni60-WC composite coatings with low dilution and defect density remains a challenge for wear-critical tunneling cutters. In this study, a plasma–laser hybrid cladding (PLHC) strategy was developed to fabricate Ni60-40 wt% WC composite coatings, and their microstructures and properties were systematically compared with those produced by plasma cladding (PC) and laser cladding (LC). The PLHC coatings exhibit a low dilution rate of 10.7% and an ultra-low porosity of 0.2%, indicating improved metallurgical integrity. Microstructural analysis reveals that the hybrid energy input effectively suppresses WC dissolution and promotes a refined, uniformly distributed hard-phase network within the Ni-based matrix. As a result, the PLHC coatings achieve a high average microhardness of 1187.83 HV1.0 and superior wear resistance, with a wear volume of 24.69 × 10−3 mm3 under a 200 N load, representing reductions of 53.6% and 20.9% compared with PC and LC coatings, respectively. These results demonstrate the effectiveness of plasma–laser hybrid cladding in tailoring the microstructure–property relationship of WC-reinforced composite coatings. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 19961944 |
| DOI: | 10.3390/ma19081572 |
