Evolution of Porosity in Lotus-Type Porous Copper Fabricated by Continuous Casting Technique

Wen Qiong Li; Xiang Ming Li; Qing Lin Jin; Rong Zhou

doi:10.4028/www.scientific.net/AMM.278-280.433

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 278-280Evolution of Porosity in Lotus-Type Porous Copper...

Evolution of Porosity in Lotus-Type Porous Copper Fabricated by Continuous Casting Technique

Abstract:

Lotus-type porous copper materials were fabricated by continuous casting technique. The relationship between porosity and external pressure were developed based on the solute mass conservation law. Theoretical values of porosity are in agreement with our experimental results. Results show that porosity decreases when the partial pressure of hydrogen increases for cases of no pressure of argon above melt, while porosity first increases and then decreases as the partial pressure of hydrogen increases for case of nonzero pressure of argon above melt.