A novel in-situ Al2O3@TiC@TiB multilayer core–shell ceramic particle reinforced Fe-based composite coating by laser cladding

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Materials Letters Pub Date : 2025-02-28 DOI:10.1016/j.matlet.2025.138321

Jianping Ma , Lincong Li , Zhaohui Wang , Tianwei Yang , Fu Guo

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Abstract

A novel Al₂O₃@TiC@TiB multilayer core–shell ceramic particle was in-situ synthesized in the Fe-based composite coating by laser cladding. The ceramic particle was formed by the addition of trace Al₂O₃ particles. The core of the multilayer ceramic particle was spherical α-Al₂O₃, the inner shell and outer shell of the particle was TiC and TiB, respectively. The Al₂O₃@TiC@TiB particle was uniformly distributed in the coating. The hardness and wear rate of the Al₂O₃-added coatings were 1277.7HV and 0.006 g/h, respectively. Compared with the coatings without the addition of Al₂O₃, the hardness was improved approximately 32 % and the wear resistance was enhanced by approximately 50 %. This study provides a promising novel multilayer core–shell ceramic particle reinforcement for composite coatings fabricated by laser cladding.

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通过激光熔覆实现的新型原位 Al2O3@TiC@TiB 多层核壳陶瓷颗粒增强铁基复合涂层

通过激光熔覆，在铁基复合材料涂层中原位合成了一种新型 Al2O3@TiC@TiB 多层核壳陶瓷颗粒。陶瓷颗粒是通过添加微量 Al2O3 颗粒形成的。多层陶瓷粒子的核心是球形的 α-Al2O3，内壳和外壳分别是 TiC 和 TiB。Al2O3@TiC@TiB 颗粒均匀地分布在涂层中。添加了 Al2O3 的涂层的硬度和磨损率分别为 1277.7HV 和 0.006 g/h。与未添加 Al2O3 的涂层相比，硬度提高了约 32%，耐磨性提高了约 50%。这项研究为激光熔覆法制造复合涂层提供了一种前景广阔的新型多层核壳陶瓷颗粒增强材料。

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive