抗磨损滑剂的磨损机制,组成和厚度 由多元组件滑剂形成的抗磨损滑膜
Anna E Tsai1, Kyriakos Komvopoulos1
1Department of Mechanical Engineering, University of California, Berkeley, CA 94720, USA.
Materials (Basel, Switzerland)
|May 25, 2024
概括
降低二甲基二酸盐 (ZDDP) 和滑剂中的分散剂可以在钢铁上形成有效的抗磨损 tribofilms. 使用特定的bis-succinimide分散剂实现了最佳性能,证明了先进滑剂配方的潜力.
科学领域:
- 三角学和滑科学 三角学和滑科学
- 材料科学与工程 材料科学与工程
- 表面化学 表面化学
背景情况:
- 研究在边界滑条件下在钢铁上形成的抗磨损膜的抗磨损性能.
- 检查含有基油,减少二甲基酸盐 (ZDDP) 和分散剂的多元滑剂.
研究的目的:
- 为了评估由不同滑剂混合物形成的 tribofilms 的耐磨性.
- 分析ZDDP和分散剂的含量对 tribofilm 特性和抗磨损性能的影响.
主要方法:
- 使用表面造型测量和扫描电子显微镜量化磨损性能.
- 通过X射线光电子光谱学确定 tribofilm 的化学成分和厚度.
- 估计的磨损率 (材料损失) 和形成的 tribofilms 的承载能力.
主要成果:
- 没有ZDDP的滑剂混合物无法形成足够的抗磨损 tribofilms.
- 含有ZDDP和分散剂的混合物显示出与含有较高ZDDP的混合物可比的抗磨损性能.
- 分散剂在保持表面清洁的同时,由于对抗性相互作用,可以降低ZDDP的抗磨损功效.
结论:
- 减少ZDDP和基分散剂的多组件滑剂可以形成有效的抗磨损tribophilms.
- 一种特定的混合物 (基油,0.05%重量%ZDDP,乙烯碳酸盐处理的bis-succinimide分散剂) 显示出优越的抗磨损性能.
- 添加剂-分散剂相互作用显著影响 tribofilm 化学和机械性能,影响整体抗磨损性能.
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