Designed Ti/TiN sub-layers suppressing the crack and erosion of TiAlN coatings
Designed Ti/TiN sub-layers suppressing the crack and erosion of TiAlN coatings
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设计的 Ti/TiN 子层可抑制 TiAlN 涂层的裂纹和侵蚀
DOI：
10.1016/j.surfcoat.2022.128419
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发表时间：
2022-05
影响因子：
5.4
通讯作者：
Aiying Wang
中科院分区：
文献类型：
--
作者：
Haitao Ruan;Zhenyu Wang;Li Wang;Lili Sun;Hui Peng;Peiling Ke;Aiying Wang
固体颗粒冲蚀损伤严重影响发动机叶片的使用寿命和运行安全，而抗冲蚀涂层是有效提高叶片材料抗冲蚀性能、延长其使用寿命的有效措施之一。本文采用自制的复合多弧阴极电弧沉积系统，在Ti-6Al-4V基体上制备了不同Ti/TiN厚度比的Ti/TiN/TiAlN多层膜。重点讨论了涂层结构与涂层结合强度、残余应力、承载能力、抗裂性和耐冲蚀性等性能之间的关系。结果表明，Ti层通过协调变形和吸收塑性变形引起的应变能，有利于提高涂层的结合强度，降低涂层的残余应力。TiN层在保持承载能力方面是重要的。在大多数情况下，径向裂纹的萌生和扩展发生在Ti/TiN界面，而广泛的横向裂纹只形成在TiAlN层，其高脆性和内部应力在划痕。当Ti与TiN层的厚度比为1：2时，涂层具有最佳的硬度、结合强度、抗裂性和承载能力的组合。结果表明，在冲蚀角为90°和30°时，涂层的冲蚀率最低，分别为0.060 ± 0.0002mg/g和0.024 ± 0.0068mg/g。
Solid particle erosion damage seriously affects the service life and operational safety of engine blades, while the erosion resistant coating is one of the effective measures to effectively improve the erosion resistance of the blade material and extend its service life. Here, we deposited the Ti/TiN/TiAlN multilayer coatings with different thickness ratio of the Ti to TiN layer on Ti-6Al-4V substrates by a home-made hybrid multisource cathodic arc system. The relationship between coating structure and coating properties including adhesion strength, residual stress, load-bearing capacity, crack resistance and erosion resistance was focused. Results showed that the Ti layer was beneficial in improving adhesion strength and reducing residual stress of the multilayer coatings, which was benefited from coordinating the deformation and absorbing strain energy induced by plastic deformation. The TiN layer was important in maintaining load-bearing capacity. Radial cracks initiation and propagation from the Ti/TiN interface occurred at most cases, while wide lateral cracks were formed only in the TiAlN layer for its high brittleness and internal stress during scratching. When the thickness ratio of the Ti to TiN layer was 1:2, the coating exhibited the best combination of hardness, adhesion strength, crack resistance, and load-bearing capacity. As a consequence, the coating behaved the lowest erosion rate of 0.060 ± 0.0002 mg/g and 0.024 ± 0.0068 mg/g at the erosion angle of 90° and 30°, respectively.
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影响因子：
3.4
作者：
Azizpour, Ahmad;Hahn, Rainer;Mayrhofer, Paul Heinz
通讯作者：
Mayrhofer, Paul Heinz
影响因子：
6.6
作者：
J. Laguna-Camacho;L. A. Cruz-Mendoza;J. C. Anzelmetti-Zaragoza;A. Marquina-Chávez;M. Vite-Torres;J. Martínez-Trinidad
通讯作者：
J. Laguna-Camacho;L. A. Cruz-Mendoza;J. C. Anzelmetti-Zaragoza;A. Marquina-Chávez;M. Vite-Torres;J. Martínez-Trinidad
影响因子：
5.4
作者：
Gu, Jiabin;Li, Liuhe;Zhang, Peipei
通讯作者：
Zhang, Peipei
DOI：
10.1155/2015/873543
发表时间：
2015-05
期刊：
--
影响因子：
--
作者：
M. Naveed;A. Obrosov;S. Weiss
通讯作者：
M. Naveed;A. Obrosov;S. Weiss
影响因子：
1.6
作者：
Vineet Shibe;V. Chawla
通讯作者：
Vineet Shibe;V. Chawla