Wear acceleration mechanism of diamond-like carbon (DLC) films lubricated with MoDTC solution: Roles of tribofilm formation and structural transformation in wear acceleration of DLC films lubricated with MoDTC solution

被引：29

作者：

Okubo, Hikaru ^{[1
]}

Tadokoro, Chiharu ^{[2
]}

Sumi, Taro ^{[3
]}

Tanaka, Noriyoshi ^{[3
]}

Sasaki, Shinya ^{[4
]}

机构：

[1] Tokyo Univ Sci, Grad Sch, Katsushika Ku, 6-3-1 Niijuku, Tokyo 1258585, Japan

[2] Saitama Univ, Sakura Ku, 255 Shimo Okubo, Saitama, Saitama 3388570, Japan

[3] ADEKA Corp, Arakawa Ku, 7-2-35 Higashiogu, Tokyo 1168554, Japan

[4] Tokyo Univ Sci, Tokyo, Japan

来源：

TRIBOLOGY INTERNATIONAL | 2019年 / 133卷

关键词：

Diamond-like carbon; In situ Raman observation; MoDTC; Wear acceleration; BOUNDARY LUBRICATION; HYDROGENATED DLC; ZINC DIALKYLDITHIOPHOSPHATE; TRIBOLOGICAL PROPERTIES; MOLYBDENUM CARBIDE; LOW-FRICTION; PERFORMANCE; ZDDP; COATINGS; BEHAVIOR;

D O I：

10.1016/j.triboint.2018.12.029

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The wear acceleration mechanism of DLC films lubricated with MoDTC solution was investigated by using in-situ and ex-situ analytical techniques: Raman spectroscopy, XPS, ToF-SIMS and nano-indenter. Especially, to reveal the role of ZDDPs and ta-C films for inhibiting the wear acceleration, friction tests were carried out using a ball-on-disk setup at a-C:H/steel and ta-C/steel contacts lubricated with PAO, PAO + MoDTC and PAO + MoDTC + ZDDP. All our results suggest that the wear acceleration is caused by hard Mo-carbide containing tribofilms. Therefore, wear acceleration did not occur for the harder DLC, i.e., the ta-C films. Our results also suggest that ZDDPs play important roles in inhibiting the carburization of Mo-compounds involving DLC surfaces at the tribological contact.

引用

页码：271 / 287

页数：17

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