文献类型：期刊文献

英文题名：Tribological Behavior of 3D-Printed Nanometer SiC and SiO₂ Particle-Reinforced Polyamide 12 Composites by Selective Laser Sintering under Seawater Lubrication Condition

作者：Ma, Jingdong[1];Yu, Guoyan[1,2];Wang, Xianmin[3];Li, Jun[1];Wu, Jingquan[1];Wang, Xianzhang[1]

机构：[1]Guangdong Ocean Univ, Sch Mech Engn, Zhanjiang 524088, Peoples R China;[2]Guangdong Prov Marine Equipment & Mfg Engn Techno, Zhanjiang 524088, Peoples R China;[3]Guangdong Ocean Univ, Sch Chem & Environm, Zhanjiang 524088, Peoples R China

年份：2022

卷号：14

期号：19

外文期刊名：POLYMERS

收录：SCI-EXPANDED(收录号：WOS:000867295400001)、、EI(收录号：20224212978331)、Scopus(收录号：2-s2.0-85139968669)、WOS

基金：This research was funded by The Guangdong Inter-regional Collaborative Fund, grant number 2019B1515120017, Zhanjiang Key Laboratory of Modern Marine Fishery Equipment, grant number 2021A05023, Guangdong Marine Economic Development (six major marine industries) Special Project, grant number GDNRC[2021]42, Ministry of Natural Resources in Guangdong Province, grant number GDNRC[2021]38, Zhanjiang project of Innovation and Entrepreneurship Team "Pilot Program", grant number 2020LHJH003, Doctoral Research Start-up Project of Guangdong Ocean University, grant number 060302012005, and Program for scientific research start-up funds of Guangdong Ocean University, grant number 060302062106.

语种：英文

外文关键词：polymers composite; seawater lubrication; selective laser sintering; friction; wear mechanism

外文摘要：Polymeric matrix composites have been widely used in the marine field. In this study, the tribological behavior under seawater-lubricated conditions of pure Polyamide 12 (PA12), micron-SiC and nanometer SiC and SiO2 particle-reinforced PA12 composites, which are prepared by selective laser sintering (SLS), were studied. The seawater absorption, hardness, contact angle and tribology performance were investigated. The results show that the addition of micron- and nano-SiC particles and nano-SiO2 particles could decrease the seawater adsorption and contact angle, and increase the hardness. Under seawater conditions, the addition of micro SiC particles can reduce the friction coefficient and wear loss, whereas the addition of nano-SiC and -SiO2 particles increases the corresponding values. The specimen printed with recycled powder has a higher friction coefficient, while having a better wear resistance. However, it increases the width and depth of the wear track in some locations. The wear mechanisms of the composite specimens are also analyzed. This was the result of the combined effects of fatigue wear and abrasive wear under seawater conditions. The latter plays a dominant role under seawater conditions. This study may provide a valuable reference for the further research and application of polymeric matrix composites in marine engineering equipment.