Analysis of surface and sub-surface of cold-rolled Al plate lubricated with water-or oil-based lubricants  

作　　者：TANG XiWen ZHANG ChenHui WANG Yan YANG Ye HU Juan 

机构地区：[1]State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China [2]Shenzhen Key Laboratory of Micro-nano Manufacturing, Research Institute of Tsinghua University in Shenzhen, Shenzhen 518057, China [3]Nanjing Golden Chemical Co., Ltd, Nanjing 210019, China

出　　处：《Science China(Technological Sciences)》2017年第9期1407-1414,共8页中国科学（技术科学英文版）

基　　金：supported by the National Key Basic Research Program of China(Grant No.2013CB934200);the National Natural Science Foundation of China(Grant Nos.51335005&51527901)

摘　　要：For environmental protection, energy conservation, and other reasons, water-based lubricants are increasingly chosen to replace oil lubricants. Water-based lubricants are divided into emulsified and solution types. Solution type water-based lubricants have attracted significant attention for the good stability, easy biodegradability, and safety for workers. However, some problems exist with current solution type water-based lubricants, such as poor lubricity and corrosion resistance. During the cold-rolling process, A1 plate rolled using oil-based lubricant lubrication shows metallic luster, but that rolled using water-based lubricant shows corrosion spots, black strips, and no metallic luster. Therefore, this study mainly analyzed the reasons for the darkness of A1 plate cold-rolled with water solution lubricants. The differences in plate surfaces lubricated by water solution and oil were investigated by scanning electron microscopy, auger electron spectroscopy, X-ray photoelectron spectroscopy, and transmission electron microscopy. The analysis results showed that the surface of the oil-lubricated sample is smooth, the oxygen content is low, and the oxide layer is thin, while the surface of the water solution-lubricated sample is rough, the oxygen content is high, the chemical composition is more complex, and the oxide layer is not uniform and thick.

关 键 词：water-based lubricant oil-based lubricant cold-rolled al surface oxidation 

分 类 号：TG339[金属学及工艺—金属压力加工]