Enhanced DLC wear performance by the presence of lubricant additives

Materials Research

Romina Paula De Castro Costa¹  Fernanda Roberta Marcian¹  Deiler Antônio Lima Oliveira¹  Vladimir Jesus Trava-airoldi¹ 

[1] ,Instituto Nacional de Pesquisas EspaciaisSão José dos Campos SP ,Brazil

关键词: DLC;    MoDTC;    ZDDP;    friction;   

DOI  :  10.1590/S1516-14392011005000023

来源: SciELO

【 摘 要 】

Lubricant additives play significant role for reducing friction and wear of mechanical elements. The additives presented in 5W30 oil were developed for metal surfaces. However, they have been used in engine pieces covered with DLC coatings because they also offer the potential to reduce friction losses and wear in automotive applications. The friction and wear tests were carried out by using a UMT-CETR ball-on-disk tribometer in rotational mode under 5W30 synthetic oil at 100 °C. The X-ray photoelectron spectroscopy (XPS) showed the presence of Mo and S in the wear tracks. These elements are from decomposition of ZDDP and MoDTC additives producing MoS2 in DLC surface, which offers enhanced durability by low wear rate.

【 授权许可】

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