Effect of atmospheric gas on ZDDP tribofilm formation

被引：3
作者：
Yamashita, Naoki [1 ]
Hirayama, Tomoko [1 ]
机构：
[1] Kyoto Univ, Grad Sch Engn, Dept Mech Engn & Sci, Nishikyo Ku, Kyoto 6158540, Japan
来源：
TRIBOLOGY INTERNATIONAL | 2024年 / 193卷
关键词：
ZDDP; Tribofilm; Atmospheric gas; Atomic force microscopy; ZINC DIALKYL DITHIOPHOSPHATE; THERMAL FILM FORMATION; IN-SITU; PHOTOELECTRON-SPECTROSCOPY; NANOMECHANICAL PROPERTIES; ANTIWEAR CHEMISTRY; STEEL SURFACES; PART I; ZNDTP; MECHANISMS;
D O I：
10.1016/j.triboint.2024.109400
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The effect of atmospheric gas on zinc dialkyldithiophosphate (ZDDP) tribofilm formation was investigated. Macroscale friction tests and in-situ atomic force microscopy (AFM) observations were carried out in both normal air and argon. In argon, the tribofilms grew slowly although the initial formation stages were similar to those of ones formed in normal air. Furthermore, after prolonged friction, the tribofilms gradually became smooth and wore away. Oxygen in the lubricant is thus important for ZDDP tribofilm formation, and a sufficient supply of oxygen is necessary to maintain the anti-wear performance of ZDDP.
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页数：11
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