Titel Solid Particle Erosion of Carbon Fiber Reinforced PEEK Composites and Corresponding Protection Methods
Autor K. Friedrich, X.-Q. Pei, A. A. Almajid
Infos zum Autor K. Friedrich, IVW GmbH, TU Kaiserslautern, Erwin Schrödinger Str. 58, 67663 Kaiserslautern, Tel.
06312017201, friedrich@ivw.uni-kl.de

X.-Q. Pei, ibid, xianqiang.pei@googlemail.com

A. A. Almajid, Mechanical Engineering Department, CEREM, College of Engineering, King Saud University,
P O Box 800, Riyadh 11421, Saudi Arabia, aalmajid@ksu.edu.sa
Inhalt Abstract
The solid particle erosion behavior of unidirectional carbon fiber reinforced PEEK composites was studied under different impact conditions using angular steel and silica sand particles as erodents. It was found that a semi-ductile erosive wear manner took place regardless of the CFs orientation. Wear mechanism analysis revealed that both cutting and deformation mechanisms existed in the erosion of the composites, although different damaging forms were involved depending on the impingement angles and the CFs orientation. The highest wear rates were measured for impingement angles between 45 and 60°. Using abrasion resistant polymer tapes (in this case PEEK or TPU ones) on the surface of the composites resulted in much lower specific erosive wear rates (newly defined in this study). The use of such tapes is therefore a possible method to protect composite surfaces from damage caused by minor impacts and erosion. In fact, they are nowadays already successfully used as protections for wind energy rotor blades.
Datum 2012