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Fabrication of Al7075/PI composites base on FSW technology

  • Jicheng GaoEmail author
  • Sunyi Zhang
  • Huiming Jin
  • Yifu Shen
ORIGINAL ARTICLE
  • 66 Downloads

Abstract

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.

Keywords

Friction stir processing Al7075/PI composites Microstructure Wear volume 

Nomenclature

FSP

friction stir processing

FSW

friction stir welding

TWI

The Welding Institute

PI

polyimide

SEM

scanning electron microscopes

OM

optical microscope

EDS

energy-dispersive x-ray spectroscope

XRD

x-ray diffraction

AS

advancing side

RS

retreating side

BM

base metal

HAZ

heat-affected zone

TMAZ

thermo-mechanically affected zone

SZ

stir zone

Notes

Funding information

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).

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Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2019

Authors and Affiliations

  • Jicheng Gao
    • 1
    Email author
  • Sunyi Zhang
    • 1
  • Huiming Jin
    • 1
  • Yifu Shen
    • 2
  1. 1.College of Mechanical EngineeringYangzhou UniversityYangzhouPeople’s Republic of China
  2. 2.College of Materials Science and TechnologyNanjing University of Aeronautics and AstronauticsNanjingPeople’s Republic of China

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