工业闭孔泡沫铝压缩力学性能及变形机理<sup>*</sup>

doi:10.11896/j.issn.1005-023X.2017.018.019

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Abstract Aluminum foams are a new class of structural and functional materials. It has a bright prospect in engineering field. In order to study the effects of matrix materials on the mechanical properties and deformation mechanism of aluminum foam and endow industrial aluminum foam with a more useful and reliable performance index, two kinds of industrial foams, Al-matrix and 7050 Al-alloy-matrix foams, were studied. The results showed that the compressive mechanical properties of 7050 Al-alloy-matrix foam was much higher than that of Al-matrix foam, so was its energy absorption ability. The deformation mechanism of Al-matrix foam was that the cells collapsed layer by layer during deformation, continuously. The outside materials of Al-matrix foam peeled off during the compression remarkably and compressed to be crumbs finally. The deformation mechanism of 7050-matrix foam was that the cells collapsed layer by layer during the deformation, discontinuously. The specimens were still whole bulks after compression finally. The cell structure of 7050-matrix foam was more uniform than that of Al-matrix foam in the present study, therefore its mechanical stability was better than Al-matrix foam.

Key words： closed-cell aluminum foam mechanical property deformation mechanism compression test

Published: 08 May 2018

CLC number:

TB34

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	Articles by authors
	YAN Chang
	SONG Xuding
	JING Chuanhe
	FENG Shuo

Cite this article:

YAN Chang,SONG Xuding,JING Chuanhe, et al. Mechanical Properties and Deformation Mechanism of Industrial Aluminum Foams[J]. Materials Reports, 2017, 31(18): 92-96.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2017.018.019 OR http://www.mater-rep.com/EN/Y2017/V31/I18/92

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