Compressive behavior of Mg alloy foams at elevated temperature
Lu, Xiaotong; Zhang, Zhigang; Du, Hao; Luo, Hongjie; Mu, Yongliang; Xu, Jianrong
AbstractIt is the purpose of this work to investigate compressive behavior of closed-cell Mg alloy foams fabricated by melting method at elevated temperature. First, the Mg alloy foams were characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD) for microstructure, composition and phases, respectively. Then, the compressive tests were carried out on closed-cell Mg alloy foams at room temperature (25 degrees C), 200 degrees C, 400 degrees C and 500 degrees C. It is found that the effect of temperature on compressive behavior of the Mg alloy foams is different between high temperature and low temperature. The Mg alloy foams exhibit a brittle compressive behavior at room temperature by the fracture of cell walls. However, the pure brittle fracture mode transforms into a combination of brittle fracture mode and ductile fracture mode at temperature in the range of 200 degrees C-400 degrees C. This indicates a soften effect of high temperature on the foams matrix and the plasticity of the cell walls at low temperature. It is concluded that the compressive strength and energy absorption capacity of the closed-cell Mg alloy foams decrease with the increasing temperature. Furthermore, a new method of defining the densification strain is proposed based on the perspective of energy absorption efficiency. (C) 2019 Elsevier B.V. All rights reserved.
KeywordMg alloy foams Temperature Compressive behavior Densification strain
Indexed BySCI
WOS IDWOS:000471128700084
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Recommended Citation
GB/T 7714
Lu, Xiaotong,Zhang, Zhigang,Du, Hao,et al. Compressive behavior of Mg alloy foams at elevated temperature[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,797:727-734.
APA Lu, Xiaotong,Zhang, Zhigang,Du, Hao,Luo, Hongjie,Mu, Yongliang,&Xu, Jianrong.(2019).Compressive behavior of Mg alloy foams at elevated temperature.JOURNAL OF ALLOYS AND COMPOUNDS,797,727-734.
MLA Lu, Xiaotong,et al."Compressive behavior of Mg alloy foams at elevated temperature".JOURNAL OF ALLOYS AND COMPOUNDS 797(2019):727-734.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Lu, Xiaotong]'s Articles
[Zhang, Zhigang]'s Articles
[Du, Hao]'s Articles
Baidu academic
Similar articles in Baidu academic
[Lu, Xiaotong]'s Articles
[Zhang, Zhigang]'s Articles
[Du, Hao]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Lu, Xiaotong]'s Articles
[Zhang, Zhigang]'s Articles
[Du, Hao]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.