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在现场扫描电子显微镜研究多层涂层中故障机制的研究

Won-Bin Kang¹, Yuzhen Liu¹, Youn-Hoo Hwang¹

¹Department of Mechanical Engineering, Yonsei University, Seoul 03722, Republic of Korea.

ACS applied materials & interfaces

|November 7, 2025

概括

了解多层涂层故障是性能的关键. 与硬顶设计相比,带有银外层的软顶TiN/Ag涂层表现出优越的耐磨性和耐损性.

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:

优化多层涂料的tribological性能需要了解它们的故障机制.
对于耐磨应用,TiN/Ag多层涂层非常有希望.

研究的目的:

调查TiN/Ag多层涂层的故障机制和tribological性能.
为了将涂层结构,堆叠序列和最顶层与磨损行为和抗划痕性能相关联.

主要方法:

在现场扫描电子显微镜 (SEM) tribotester用于同时监测摩擦和可视化磨损.
超纳米划痕测试用于对抗划痕的评估.
聚焦离子束 (FIB) 截面分析用于测试后故障机制调查.

主要成果:

使用Ag作为最顶层的软顶 (ST) 结构表现出比使用TiN的硬顶 (HT) 结构更好的抗损伤和耐磨性.
在现场SEM揭示了各种各样的磨损行为,包括槽形成,分层和裂.
发现的故障机制包括剪切变形,层间裂纹和由于应力循环而导致的裂纹填充.
ML10ST涂层表现出最高的耐磨性,这归因于Ag层的塑性变形以消除应力.

结论:

堆叠序列和最顶层显著影响TiN/Ag多层涂料的tribological性能和故障模式.
与硬顶结构相比,软顶结构提供了增强的耐磨性和稳定性.
了解应力消散机制对于设计先进,耐用的多层涂层至关重要.

关键词:

失败行为失败行为在现场进行SEM.多层涂层是多层的涂层.实时观察实时观察实时观察磨损机制的磨损机制是什么

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