American Journal of Materials Science
p-ISSN: 2162-9382 e-ISSN: 2162-8424
2015; 5(3C): 38-42
doi:10.5923/c.materials.201502.08
Sonika Sahu , Mohd. Zahid Ansari
PDPM-Indian Institute of Information Technology, Design and Manufacturing (IIITDM) Jabalpur, Khamaria, Jabalpur, India
Correspondence to: Mohd. Zahid Ansari , PDPM-Indian Institute of Information Technology, Design and Manufacturing (IIITDM) Jabalpur, Khamaria, Jabalpur, India.
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The aim of this paper is to discuss mechanical properties of different zinc-aluminium alloy foams that can be used as a substitute metal foam in place of aluminium and other low temperature metal alloy foams. ZA alloys have better wear resistance and self lubricating properties than aluminium and therefore can be used in automobile applications. Different fabrication processes that are adopted to manufacture ZA alloy and the compressive stress-strain characteristics of these are discussed. A comparison between energy absorption abilities of ZA12, ZA22 and ZA27 is presented. And, the compressive strength and energy absorption features of ZA22, ZA22/SiCp and ZA22/Al2O3 was compared. It was observed that ZA27 has high energy absorption capacity. And, ZA22 composite foams, i.e. ZA22/SiCp and ZA22/Al2O3, have better compressive strength and energy absorption features.
Keywords: Zinc-Aluminium foam, Stir casting, Relative density, Strain-Rate sensitivity, Energy absorption capacity
Cite this paper: Sonika Sahu , Mohd. Zahid Ansari , A Study on Manufacturing Processes and Compressive Properties of Zinc-Aluminium Metal Foams, American Journal of Materials Science, Vol. 5 No. 3C, 2015, pp. 38-42. doi: 10.5923/c.materials.201502.08.
Table 1. Different manufacturing processes for ZA foams and their properties (DF: Direct foaming, VM: Vortex method and MF: Melt foaming) |
Figure 1. ZA foam cubical sample [18] |
Figure 2. Compressive stress – strain curve of ZA22 foam with or without reinforced material |
Figure 3. A plot between energy absorbed and plastic strain in ZA foam |