Effect of Diesel Soot on the Distribution,Composition and Mechanical Properties of ZDDP Tribofilm

查看全文 作　　者：Feng [1]Weimin;Song [1]Hui;Song [1]Ruhong;Yang [1]Bingxun;Hu [1]Xianguo

机构地区：[1]School of Mechanical Engineering,Hefei University of Technology,Hefei 230009

出　　处：《China Petroleum Processing & Petrochemical Technology》索引2021年第23卷第3期,共8页

基　　金：This research was supported by the National Natural Science Foundation of China(Grant No.52075141). 摘　　要：To investigate the effect of diesel soot on the distribution,composition and mechanical properties of ZDDP tribofilm,a HFRR tribometer was applied to study the tribological performance.Worn surfaces lubricated with ZDDP and soot were analyzed by laser microscopy,SEM/EDS,Raman spectroscopy,XPS,and a nano-indentation equipment.Results show that soot scrapes off the ZDDP tribofilm and can be embedded into the worn surface,leading to the reduction of film thickness and non-uniform distribution of tribofim.The phosphate structure in ZDDP tribofilm changes from short chain pyrophosphate to long chain metaphosphate due to the increased contact stress caused by the soot abrasive wear,which can promote the cross-linking of ZDDP.The hardness(H)and elastic modulus(E)of the worn surfaces increase,while the ratio of hardness to elastic modulus,H/E,decreases,which indicates that the reduction of wear resistance is caused by the soot. 关键词：SOOT ZDDP TRIBOFILM chemical composition mechanical properties

相关文献

参考文献（26）
引证文献（2）
耦合文献（58）

参考文献(26)

引证文献(2)

耦合文献(58)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Effect of Diesel Soot on the Distribution,Composition and Mechanical Properties of ZDDP Tribofilm

参考文献(26)

引证文献(2)

耦合文献(58)

用户提示