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Materials (Basel). 2017 Jan 24;10(2). pii: E98. doi: 10.3390/ma10020098.

Compressive Properties of Open-Cell Al Hybrid Foams at Different Temperatures.

Author information

1
Key Laboratory of Automobile Materials (Ministry of Education), College of Materials Science and Engineering, Jilin University, Changchun 130022, China. liuja@jlu.edu.cn.
2
Key Laboratory of Automobile Materials (Ministry of Education), College of Materials Science and Engineering, Jilin University, Changchun 130022, China. 18943659380@163.com.
3
Key Laboratory of Automobile Materials (Ministry of Education), College of Materials Science and Engineering, Jilin University, Changchun 130022, China. Zhuxy@jlu.edu.cn.
4
Key Laboratory of Automobile Materials (Ministry of Education), College of Materials Science and Engineering, Jilin University, Changchun 130022, China. lyh@jlu.edu.cn.
5
Key Laboratory of Automobile Materials (Ministry of Education), College of Materials Science and Engineering, Jilin University, Changchun 130022, China. Zhangjw@mail.jlu.edu.cn.
6
Key Laboratory of Bionic Engineering (Ministry of Education), Jilin University, Changchun 130022, China. Liuyan2000@jlu.edu.cn.
7
Key Laboratory of Bionic Engineering (Ministry of Education), Jilin University, Changchun 130022, China. jluzcc@jlu.edu.cn.

Abstract

Hybrid Ni/Al foams were fabricated by depositing electroless Ni-P (EN) coatings on open-cell Al foam substrate to obtain enhanced mechanical properties. The microstructure, chemical components and phases of the hybrid foams were observed and analyzed by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD), respectively. The mechanical properties of the foams were studied by compressive tests at different temperatures. The experiment results show that the coating is mainly composed of Ni and P elements. There was neither defect at the interface nor crack in the coatings, indicating that the EN coatings had fine adhesion to the Al substrate. The compressive strengths and energy absorption capacities of the as-received foam and hybrid foams decrease with the increasing testing temperatures, but the hybrid foams exhibit a lower decrement rate than the as-received foam. This might be attributed to the different failure mechanisms at different testing temperatures, which is conformed by fractography observation.

KEYWORDS:

compressive properties; electroless plating; elevated temperature; hybrid foams

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