Author
Jing Wang
Bio: Jing Wang is an academic researcher from Hebei University of Technology. The author has contributed to research in topics: Metal foam & Deformation (engineering). The author has an hindex of 3, co-authored 3 publications receiving 20 citations.
Papers
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TL;DR: In this article, the compressive characteristics of closed-cell aluminum foams (with different percentages of elemental Mn) after immersion in simulated seawater are investigated and the effect of corrosion process on the yield strength and energy absorption capacity is studied systematically.
11 citations
TL;DR: In this article, the effect of Al-Ti-B on the microstructure and compressive properties of closed-cell aluminum alloy (A356) foams was investigated.
Abstract: Closed-cell aluminum alloy (A356) foams with different percentages of Al-Ti-B are prepared by melt foaming method, using Ca and TiH 2 as thickening agent and foaming agent, respectively. SEM and Quasi-static compression tests are performed to investigate the effect of Al-Ti-B on the microstructure and compressive properties of aluminum alloy (A356) foams. The results show that foams with Al-Ti-B percentage of 0.3 wt.% possess good combinations of micro hardness, yield strength, plateau strength, densification strain and energy absorption capacity under the present conditions. The reasons are mainly due to the foams with Al-Ti-B percentage of 0.3 wt.% possess optimal eutectic Si morphology (with eutectic Si existing in the forms of particles or short fiber). DOI: http://dx.doi.org/10.5755/j01.ms.22.3.8559
6 citations
TL;DR: In this paper, closed-cell aluminum foams with different percentages of erbium (Er) element were successfully prepared and the distribution and existence form of Er element and its effect on the compressive properties of the foams were investigated.
Abstract: In the present study, closed-cell aluminum foams with different percentages of erbium (Er) element were successfully prepared. The distribution and existence form of erbium (Er) element and its effect on the compressive properties of the foams were investigated. Results show that Er uniformly distributes in the cell walls in the forms of Al3Er intermetallic compound and Al-Er solid solutions. Compared with commercially pure aluminum foam, Er-containing foams possess higher micro-hardness, compressive strength and energy absorption capacity due to solid solution strengthening and second phase strengthening effects. Additionally, the amount of Er element should be controlled in the range of 0.10wt.%–0.50wt.% in order to obtain a good combination of compressive strength and energy absorption properties
4 citations
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TL;DR: In this paper, different perforation and air gap types were designed for changing the macrostructures of the foam and the effect of macro-structures on the sound absorption coefficient and sound reduction index were investigated.
29 citations
TL;DR: In this article, the authors evaluated the protection performance of two kinds of coatings, organic coating and enamel, in comparison with uncoated aluminium foam and found that both layers showed a high increase of corrosion behavior.
Abstract: The aluminium foams present very interesting properties due to their low density. However, the presence of cells and the complex geometry are critical aspects considering the corrosion behaviour. A suitable method to increase the corrosion resistance is desirable. The cataphoretic deposited paint could be a useful way due to the possibility to obtain a protective and homogenous paint layer also with complex geometry. Other solution could be the application of an enamel layer, which shows high protection properties together with a good resistance at high temperature. The aim of this paper is the evaluation of the protection performance of these kinds of coatings. The corrosion behaviour of coated samples is evaluated by acetic acid salt spray exposure test and by electrochemical measurements. Both layers, organic coating and enamel, show a high increase of corrosion behaviour in comparison of uncoated aluminium foam.
15 citations
TL;DR: In this paper, the authors systematically studied the properties of metastable Al3Ti/Al (L12-Al3 Ti/Al) low-index coherent interface, including structure stability, fracture behavior, plasticity, stacking fault energy, electron structure, and density of states.
14 citations
TL;DR: In this article, the properties of porcelain enamelled aluminium foam samples were evaluated for different enamel systems and they showed that the presence of the vitreous enamel coating increases the fire resistance of aluminium foam.
14 citations
09 Jul 2020
TL;DR: In this article, the pore size of closed-cell aluminum foams with 4 wt.% contents of short-cut basalt fibers (BFs) was calculated using modified melt-foaming method.
Abstract: In this work, closed-cell aluminum foams with 4 wt.% contents of short-cut basalt fibers (BFs) were successful prepared by using the modified melt-foaming method. The pore size of BF-containing aluminum foam and commercially pure aluminum foam was counted. The distribution of BF and its effect on the compressive properties of closed-cell aluminum foams were investigated. The results showed that the pore size of BF-containing aluminum foams was more uniform and smaller. BF mainly existed in three different forms: Some were totally embedded in the cell walls, some protruded from the cell walls, and others penetrated through the cells. Meanwhile, under the present condition, BF-containing aluminum foams possessed higher compressive strength and energy absorption characteristics than commercially pure aluminum foams, and the reasons were discussed.
8 citations