Microarchitecture and compressive deformation behaviour of Al-alloy (LM13)-cenosphere hybrid Al-foam prepared using CaCO3 as foaming agent

作者：Mondal D P^*; Jha Nidhi; Gull Bilal; Das S; Badkul Anshul

来源：Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, 2013, 560: 601-610.

DOI：10.1016/j.msea.2012.10.003

• Hybrid foam
• Effect of temperature
• Cenosphere
• Energy absorption
• Compressive deformation

LM13 Al-alloy-cenosphere aluminium hybrid foam was made by foaming LM13 Al-cenosphere mixture through stir casting technique using CaCO3 as foaming agent. In the melt mixture 30 vol% of cenosphere was used and the foaming temperature was varied (660 degrees C and 690 degrees C). It was interestingly noted that two different kinds of foam architecture at two different temperatures were obtained: partially open and elongated pores with much lower density at 660 degrees C and closed spherical cells with relatively higher density at 690 degrees C. The compressive deformation behaviour of these foams were examined in order to assess its plateau stress, densification strain and energy absorption and also to understand its deformation mechanism.

• 出版日期2013-1-10