不同氮气流速下 TiN/Ti 涂层的腐蚀性能

IF 2.9 3区 材料科学 Q2 MATERIALS SCIENCE, COATINGS & FILMS
Coatings Pub Date : 2024-09-05 DOI:10.3390/coatings14091144
Yuxin Ren, Zhaolu Zhang, Guangyu He, Yan Chai, Yanli Zhang, Zilei Zhang
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引用次数: 0

摘要

本研究采用磁过滤阴极真空电弧沉积法制造 TiN/Ti 多层涂层,考察了氮气流速(4、8、12 和 16 sccm)对涂层性能的影响,重点是 4 到 12 sccm 的梯度流速。涂层的相组成从 TiN0.26 转变为 Ti2N 和 TiN 复合材料,从而优化了微观结构,在 16 sccm 的流速下,硬度显著提高到 24.37 GPa,弹性模量提高到 219.84 GPa。表面粗糙度的降低进一步提高了抗侵蚀性。在梯度流下制造的涂层质量损失减少,侵蚀率为 0.07 mg-g-1,优于单一流速。侵蚀失效分析表明,12 sccm 涂层因广泛的裂纹互连而失效,而 16 sccm 涂层则因裂纹扩展而出现剥落。尽管存在裂缝,但梯度流动涂层的损坏区域更窄,抗侵蚀能力更强,这表明了不同氮气流速对涂层优化的益处。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Erosion Performance of TiN/Ti Coatings under Different Nitrogen Flow Rates
This study employed magnetic filtered cathodic vacuum arc deposition to fabricate TiN/Ti multilayer coatings, examining the impact of nitrogen flow rates—4, 8, 12, and 16 sccm—on their performance, with an emphasis on gradient flow rates from 4 to 12 sccm. The coatings’ phase composition shifted from TiN0.26 to a Ti2N and TiN composite, optimizing the microstructure and significantly increasing the hardness to 24.37 GPa and the elastic modulus to 219.84 GPa at the 16 sccm rate. The surface roughness reduction further improved erosion resistance. Coatings made under gradient flow exhibited reduced mass loss and an erosion rate of 0.07 mg·g−1, outperforming single flow rates. Erosion failure analysis highlighted that while 12 sccm coatings failed due to extensive crack interconnection, 16 sccm coatings showed spalling from crack expansion. Gradient flow coatings, despite the presence of a crack, demonstrated a more confined damage area and enhanced erosion resistance, indicating the benefits of varied nitrogen flow rates in coating optimization.
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来源期刊
Coatings
Coatings Materials Science-Surfaces, Coatings and Films
CiteScore
5.00
自引率
11.80%
发文量
1657
审稿时长
1.4 months
期刊介绍: Coatings is an international, peer-reviewed open access journal of coatings and surface engineering. It publishes reviews, research articles, communications and technical notes. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. Full experimental and/or methodical details must be provided. There are, in addition, unique features of this journal: * manuscripts regarding research proposals and research ideas will be particularly welcomed * electronic files or software regarding the full details of the calculation and experimental procedure - if unable to be published in a normal way - can be deposited as supplementary material
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