Tribological behavior of carbon nanotube reinforced aluminum matrix composites with varying matrix alloys  

作　　者：Xiaonan LI Yiou LIAO Kai MA Yuning ZAN Zhenyu LIU Bolv XIAO Zongyi MA 

机构地区：[1]Shi-changxu Innovation Center for Advanced Materials,Institute of Metal Research,Chinese Academy of Sciences,Shenyang,110016,China

出　　处：《Science China(Technological Sciences)》2025年第4期59-71,共13页中国科学(技术科学英文版)

基　　金：supported by the National Key R&D Program of China(Grant No.2023YFB3710601);the National Natural Science Foundation of China(Grant Nos.52120105001,51931009,52322106,52192595);the Youth Innovation Promotion Association CAS(Grant No.2020197);the IMR Innovation Fund(Grant No.2022-PY03);the Natural Science Foundation of Liaoning Province(Grant No.2022YQ-01)。

摘　　要：Carbon nanotube(CNT)reinforced aluminum matrix composites(CNT/Al)featuring distinct matrix alloys were crafted utilizing a synergistic approach that integrated high energy ball milling with powder metallurgy techniques.The influence of matrix alloy composition on the tribological behavior of CNT/Al composites was investigated.CNT/2009Al composite demonstrates lower friction coefficients and wear rates than CNT/6061Al,while also significantly reducing the wear rate of its counterpart under varying loads by generating an extensive mechanical mixture layer(MML)on its worn surface,while simultaneously hindering the formation of MML on the worn counterface.But for CNT/6061Al,the spalling of substantial material fragments during wear processes led to pronounced delamination wear,particularly under high load.This underscores the superior suitability of high-strength and tough aluminum alloys as matrices for composites,particularly tailored for applications that necessitate components exhibiting wear resistance.

关 键 词：carbon nanotube matrix alloy aluminum matrix composites tribological behavior 

分 类 号：TB33[一般工业技术—材料科学与工程] TB333