通过优化陶介层厚度来提高Cr3C2-NiCr/AlCrN双重涂层的高温 Tribological 性能
Feng Mao1, Dongqing He1, Xiangxiang Pan1
1State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China.
Langmuir : the ACS journal of surfaces and colloids
|March 10, 2026
概括
优化Cr3C2-NiCr间层厚度是高温性能的关键. 在Cr3C2-NiCr/AlCrN双重涂层中的100微米中间层可以防止磨损并增强650°C的tribological特性.
科学领域:
- 材料科学 材料科学 材料科学
- 部落学 (tribology) 是一个学科.
- 表面工程是什么?表面工程是什么?
背景情况:
- 高温涂层对于苛刻的应用至关重要.
- 了解层间影响对于涂层耐用性至关重要.
- Cr3C2-NiCr/AlCrN双重涂层为高温使用提供了潜力.
研究的目的:
- 调查Cr3C2-NiCr介层厚度对高温tribological性能的影响.
- 为了确定Cr3C2-NiCr/AlCrN双重涂层的最佳间层厚度.
- 为了阐明高温下磨损机制.
主要方法:
- 对具有不同Cr3C2-NiCr介层厚度的双重涂层进行实验研究.
- 与650°C的YG6对应物进行高温 Tribological 测试.
- 有限元模拟用于分析应力分布和磨损机制.
主要成果:
- 间层<100μm导致AlCrN薄膜变形,破裂,主要是氧化/磨损磨损.
- 介层> 100μm导致氧化膜破裂导致加速氧化磨损.
- 一个100微米的介层提供了最佳的支,压力转移,并促进了保护性 tribo-oxidation 膜的形成.
结论:
- Cr3C2-NiCr间层厚度极大地影响了C3C2-NiCr/AlCrN双重涂层的高温三极学性能.
- 一个100微米厚的中间层是最佳的,可以在650°C达到优异的耐磨性和tribological行为.
- 适当的层间设计对于防止高温应用中的氧化和磨损磨损等磨损机制至关重要.
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