采样间隔对加工表面纹理混合参数之间的依赖性的影响
Pawel Pawlus1, Rafal Reizer2, Wieslaw Żelasko3
1Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, Powstancow Warszawy 8 Street, 35-959 Rzeszow, Poland.
Materials (Basel, Switzerland)
|December 11, 2025
概括
表面地形参数,斜率Sdq和界面面积比Sdr,是相互关联的. 建议Sdq用于描述表面纹理,因为它对测量错误的敏感性较低.
科学领域:
- 材料科学 材料科学 材料科学
- 表面计量学 表面计量学
- 机械工程 机械工程
背景情况:
- 表面地形显著影响加工表面的功能特性.
- 像斜率 (Sdq) 和界面面积比 (Sdr) 这样的混合参数对于评估表面地形学至关重要.
- 这些参数,Sdq和Sdr,表现出相互依赖.
研究的目的:
- 在不同的采样间隔下调查Sdq和Sdr之间的关系.
- 使用特定公式评估从Sdq估计Sdr的准确性.
- 为表面分析选择适当的采样间隔提出指导方针.
主要方法:
- 使用白光干扰仪 (Talysurf CCI Lite) 分析了64个加工表面的地形.
- 在所有表面的一致条件下进行测量.
- 在不同的采样间隔中测试Sdq和Sdr之间的相互关系公式.
主要成果:
- 在Sdq和Sdr之间观察到强烈的线性相关性,独立于采样间隔.
- 从Sdq中估计Sdr为光滑表面提供了准确的结果.
- 从Sdr估计Sdq的相对误差随着抽样间隔的增加而减少.
- 高粗幅度的表面显示出更高的估计误差.
结论:
- 表面地形学参数Sdq和Sdr是密切相关的.
- 与Sdr.相比,Sdq被推用于面积表面纹理描述,因为它对测量错误的稳定性比Sdr.
- 采样间隔的选择至关重要,并提出了一项建议.
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