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Degradation behaviors of PLA-matrix composite with 20 vol% magnesium alloy wires under static loading conditions

  • Chenglin Chu
  • Xuan Li
  • Weidong Yu
  • Linyuan Han
  • Jing Bai
  • Feng Xue
Composites
  • 14 Downloads

Abstract

Influence of static compression loading on the degradation behaviors of polylactic acid-based composite reinforced with 20 vol% magnesium alloy wires (MAWs) is investigated. The external stress would enhance the degradation of the composite. As the applied stress is increased from 1 to 3 MPa, the overall degradation rate goes up. After immersion for 30 days, the degradation rate of PLA matrix in the composite at the stress level of 3 MPa is about 1.46 and 2.4 times those at 1 and 0 MPa (unloading condition) while the bending strength retention is 0.73 and 0.63 times those of the latter ones. The relationship between the degradation rate of PLA matrix in the composite and the external compression stress is further elucidated. The external stress deteriorates the strength retention of the composite but a high MAWs content could mitigate the deterioration.

Notes

Acknowledgements

This work was jointly supported by National Natural Science Foundation of China (Grant No. 31570961, 51771054), State Key Program of National Natural Science Foundation of China (Grant No. 51631003), National Key Research and Development Program of China (Grant No. 2016YFC1102402), Natural Science Foundation of Jiangsu Province (BK20181020) and the introduction of Talent Research Fund in Nanjing Institute of Technology (YKJ201705).

Compliance with ethical standards

Conflict of interest

The authors declare there is no conflict of interest regarding the publication of this paper.

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© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.School of Materials Science and EngineeringSoutheast UniversityNanjingChina
  2. 2.Jiangsu Key Laboratory for Advanced Metallic MaterialsSoutheast UniversityNanjingChina
  3. 3.School of Materials EngineeringNanjing Institute of TechnologyNanjingChina
  4. 4.Jiangsu Key Laboratory of Advanced Structural Materials and Application TechnologyNanjing Institute of TechnologyNanjingChina

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