Fabrication of Al7075/PI composites base on FSW technology
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In this paper, polyimide (PI) particles-reinforced Al7075 composite is fabricated via friction stir processing (FSP) since it has potential applications in the field of aeronautics and astronautics, automobile, and shipbuilding. The microstructure evaluation shows that the uniform distribution of PI particle is not obtained after one pass. The dispersibility of the PI particles is improved with the increase of the passes. No evidence of impurity phases is introduced by analyzing the X-ray diffraction (XRD) results. Microhardness test results indicate that the microhardness is higher than the base metal but lower than the FSP sample. The wear test results show that the minimum wear volume of composites is 0.521 mm3, which is 68% of the matrix.
KeywordsFriction stir processing Al7075/PI composites Microstructure Wear volume
friction stir processing
friction stir welding
The Welding Institute
scanning electron microscopes
energy-dispersive x-ray spectroscope
thermo-mechanically affected zone
The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: The Natural Science Foundation of the Jiangsu Higher Education Institutions of China (18KJB460031), Project funded by China Postdoctoral Science Foundation (2018 M642337).
- 5.Pradeep Devaneyana S, Peter Pushpanathanb D, Senthilvelanc T, Ganesh R (2018) Enhanced corrosion and wear behavior of nano titanium carbide reinforced polyurethane PMC coating on aluminium 7075. Mater Today 5:11491–11497Google Scholar