Sand erosion mechanism of Ti/TiAlN multilayer coatings deposited on aluminum matrix composite at low temperature

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear Pub Date : 2025-10-08 DOI:10.1016/j.wear.2025.206374

Tianyu Ma , Li Xin , Yunfei Jia , Chengcheng Zhang , Zebin Bao , Fuhui Wang , Shenglong Zhu

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引用次数: 0

Abstract

To improve solid particle erosion resistance of 5 %TiB₂/AlSi10Mg composite, hard and adhesive Ti/TiAlN multilayer coatings with different number of layers were deposited on its surface at low temperature by multi-arc ion plating. When impacted by high-speed alumina particles at 90° and 30°, erosion resistance of the composite was significantly improved by the application of multilayer coatings. The Ti/TiAlN multilayer coating with 8 layers performed the best in all erosion condition. At 30°, detachment of surface macroparticles and intersection of cracks produced by Al₂O₃ particle flow accounted for material removal of the multilayer coatings. At 90°, intersection of the cracks including ring cracks, lateral cracks, median cracks and radial cracks developed in the multilayer coatings during impact loading and unloading accounted for erosion removal of the material. The more the number of layers in the multilayer coatings, the greater the contribution of the ring and radial cracks to the material removal. Finite element modeling showed large tensile stresses developed at both the surfaces and the undersurfaces of TiAlN layers in the multilayer coatings and also along the direction of coating thickness during impact loading and unloading, which were probably responsible for the generation of ring cracks on the surface of the top TiAlN layer, radial cracks at the undersurfaces of the TiAlN layers, and the lateral cracks inside the TiAlN layer and along the TiAlN/Ti interface. The best erosion resistance of the multilayer coating with 8 layers at 90° may be due to its architecture is beneficial for reduction of the material removal.

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铝基复合材料低温沉积Ti/TiAlN多层涂层的砂蚀机理

为了提高5% TiB2/AlSi10Mg复合材料的抗固体颗粒侵蚀性能，采用低温多弧离子镀的方法在其表面沉积了不同层数的硬质粘接Ti/TiAlN多层涂层。当高速氧化铝颗粒在90°和30°处冲击时，多层涂层的应用显著提高了复合材料的抗冲蚀性能。8层Ti/TiAlN多层涂层在所有侵蚀条件下均表现最佳。在30°时，Al2O3颗粒流产生的表面大颗粒脱落和裂纹相交是多层涂层材料去除的主要原因。在90°处，多层涂层在冲击加载和卸载过程中产生的裂纹相交，包括环形裂纹、横向裂纹、中间裂纹和径向裂纹，导致了材料的侵蚀去除。多层涂层中层数越多，环形裂纹和径向裂纹对材料去除的贡献越大。有限元模拟结果表明，在冲击加载和卸载过程中，多层涂层中TiAlN层的表面和下表面以及沿涂层厚度方向都产生了较大的拉应力，这可能是TiAlN层顶部表面产生环状裂纹、TiAlN层下表面产生径向裂纹、TiAlN层内部和TiAlN/Ti界面产生横向裂纹的原因。在90°温度下，8层多层涂层的耐蚀性最好可能是由于其结构有利于减少材料的去除。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Wear 工程技术-材料科学：综合

CiteScore

8.80

自引率

8.00%

发文量

280

审稿时长

47 days

期刊介绍： Wear journal is dedicated to the advancement of basic and applied knowledge concerning the nature of wear of materials. Broadly, topics of interest range from development of fundamental understanding of the mechanisms of wear to innovative solutions to practical engineering problems. Authors of experimental studies are expected to comment on the repeatability of the data, and whenever possible, conduct multiple measurements under similar testing conditions. Further, Wear embraces the highest standards of professional ethics, and the detection of matching content, either in written or graphical form, from other publications by the current authors or by others, may result in rejection.