Optimized strategy for induction cladding of diamond/Ni-based wear-resistant coatings

IF 4.3 3区材料科学 Q2 MATERIALS SCIENCE, COATINGS & FILMS

Diamond and Related Materials Pub Date : 2024-11-12 DOI:10.1016/j.diamond.2024.111776

Qilong Wu , Huawei Sun , Hongwei Zhao , Yujia Li , Zhipeng Sun , Lei Zhang

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Abstract

Diamond/Ni-based wear-resistant coatings were fabricated on 45 steel using induction cladding, followed by laser remelting of the gradient coatings. The microstructure, phase composition, hardness, and friction properties of the coatings were examined. Results revealed that the surfaces of the composite and gradient coatings primarily consisted of a hard γ-Ni matrix and phases such as diamond, Cr₇C₃, and Cr₂₃C₆. High-temperature diffusion results in a strong metallurgical bond between the coating and the substrate. The gradient coating design significantly reduce the physical property mismatch between the 45 steel substrate and the composite coating. While laser remelting increased chromium aggregation and achieved a more uniform distribution of Fe, Ni, and Si. XRD analysis indicated that the Ni₂Si diffraction peaks disappeared. Concurrently, the surface roughness and wear loss of the coating decreased, while the microhardness of the surface layer increased to 1030.74 HV, enhancing surface wear and corrosion resistance performance.

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金刚石/镍基耐磨涂层感应熔覆的优化策略

使用感应熔覆法在 45 号钢上制作了金刚石/镍基耐磨涂层，然后对梯度涂层进行了激光重熔。研究了涂层的微观结构、相组成、硬度和摩擦性能。结果表明，复合涂层和梯度涂层的表面主要由坚硬的γ-镍基体和金刚石、Cr7C3 和 Cr23C6 等相组成。高温扩散使涂层和基体之间形成牢固的冶金结合。梯度涂层设计大大降低了 45 钢基体与复合涂层之间的物理性能失配。激光重熔增加了铬的聚集，使铁、镍和硅的分布更加均匀。XRD 分析表明，Ni2Si 衍射峰消失了。同时，涂层的表面粗糙度和磨损损耗降低，表层的显微硬度提高到 1030.74 HV，从而提高了表面耐磨和耐腐蚀性能。

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来源期刊

Diamond and Related Materials 工程技术-材料科学：综合

CiteScore

6.00

自引率

14.60%

发文量

702

审稿时长

2.1 months

期刊介绍： DRM is a leading international journal that publishes new fundamental and applied research on all forms of diamond, the integration of diamond with other advanced materials and development of technologies exploiting diamond. The synthesis, characterization and processing of single crystal diamond, polycrystalline films, nanodiamond powders and heterostructures with other advanced materials are encouraged topics for technical and review articles. In addition to diamond, the journal publishes manuscripts on the synthesis, characterization and application of other related materials including diamond-like carbons, carbon nanotubes, graphene, and boron and carbon nitrides. Articles are sought on the chemical functionalization of diamond and related materials as well as their use in electrochemistry, energy storage and conversion, chemical and biological sensing, imaging, thermal management, photonic and quantum applications, electron emission and electronic devices. The International Conference on Diamond and Carbon Materials has evolved into the largest and most well attended forum in the field of diamond, providing a forum to showcase the latest results in the science and technology of diamond and other carbon materials such as carbon nanotubes, graphene, and diamond-like carbon. Run annually in association with Diamond and Related Materials the conference provides junior and established researchers the opportunity to exchange the latest results ranging from fundamental physical and chemical concepts to applied research focusing on the next generation carbon-based devices.