Investigation on forward and backward transfer process during carbon fiber/epoxy composites dry-sliding against iron alloy

作     者：LU LongSheng LI ZeHong FANG HeZhengZi XIE YingXi WANG WenTao 

作者机构：School of Mechanical&Automotive EngineeringSouth China University of TechnologyGuangzhou 510641China 

出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)

年 卷 期：2022年第65卷第11期

页      面：2564-2572页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：supported by the Natural Science Foundation of Guangdong Province,China (Grant No. 2021B1515020087) the National Natural Science Foundation of China (Grant No. 51775197) 

主　　题：carbon fiber epoxy composite transfer film friction mechanism 

摘      要：Carbon fiber reinforced polymer(CFRP)composites with high load-bearing capacity are currently ideal materials in tribological load *** of the unique features during the friction process of CFRP/metal is the in-situ formation of an ultrathin and uniform transfer film on the metal surface,and the related initial/transfer mechanism is very important but still *** studies mainly focus on the one-way transfer process of CFRP to the metal surface,that is,forward transfer;whereas another easily overlooked issue is that the metal material also transfers backward to the CFRP ***,we firstly prepared carbon fiber/epoxy resin composites(CF/EP)by the hot-pressing method and then carried out friction tests with iron alloy as the control *** underlying mechanism of the forward/backward transfer process is revealed by controlling the morphological evolution and iron content of the transfer film on worn CF/*** to the variation law of friction coefficient with time,the interfacial friction is divided into three different stages,among which the behaviours of“micro-convex contactand“epoxy exfoliationoccur throughout the whole *** believe this work could provide a meaningful reference for studying the friction behaviour and mechanism,especially the forward and backward transfer between composites/metals,and further broaden its emerging applications in future energy,aerospace and rail transportation.