Next Article in Journal
Characteristics of Metal Magnetic Memory Testing of 35CrMo Steel during Fatigue Loading
Previous Article in Journal
Assessment of Ductile, Brittle, and Fatigue Fractures of Metals Using Optical Coherence Tomography
Article Menu
Issue 2 (February) cover image

Export Article

Open AccessArticle

Enhanced Compressive Property of Al Composite Foams at Elevated Temperatures via Plasma Electrolytic Oxidation

1
Roll Forging Research Institute, Jilin University, Changchun 130022, China
2
Key Laboratory of Automobile Materials (Ministry of Education), College of Materials Science and Engineering, Jilin University, Changchun 130022, China
3
Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UK
4
Key Laboratory of Bionic Engineering (Ministry of Education), Jilin University, Changchun 130022, China
*
Author to whom correspondence should be addressed.
Metals 2018, 8(2), 118; https://doi.org/10.3390/met8020118
Received: 10 January 2018 / Revised: 28 January 2018 / Accepted: 1 February 2018 / Published: 8 February 2018
  |  
PDF [14527 KB, uploaded 9 February 2018]
  |  

Abstract

The present work investigates the compressive property of Al matrix composite foams at different temperatures between room temperature and 200 °C. Elevated temperature results in a decreased compressive strength and energy absorption capacity of as-received Al foams. Therefore, to maintain the compressive property, the Al2O3 ceramic coating was deposited on the Al struts of the foams by the plasma electrolytic oxidation (PEO) process to form Al2O3/Al composite foams. As a consequence, the composite foams exhibit a higher compressive strength and energy absorption capacity as compared with the as-received Al foams at both room temperature and elevated temperatures because of the reinforced effect of the Al2O3 ceramic on the foam strut. The related mechanisms were explained by fractography, microstructure observation and phase composition analysis using scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD). View Full-Text
Keywords: foams; compressive property; plasma electrolytic oxidation; elevated temperature foams; compressive property; plasma electrolytic oxidation; elevated temperature
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Liu, H.; Pan, W.; Si, F.; Huang, K.; Liu, Y.; Liu, J. Enhanced Compressive Property of Al Composite Foams at Elevated Temperatures via Plasma Electrolytic Oxidation. Metals 2018, 8, 118.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Metals EISSN 2075-4701 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top