Fabrication of Gasar made from Cu-24 wt.% Mn alloy
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Xingming Zhang
Abstract
Unidirectionally solidified porous Cu-24 wt.% Mn alloy is prepared by the Gasar process, using mold casting equipment under various conditions. The experimental process demonstrates the feasibility of fabricating a Gasar structure for alloys with a wide solidification temperature range, as well as a columnar dendritic structure. The effects of melt temperature, initial mold temperature, and partial gas pressures on the pore structure and microstructure of an alloy matrix were investigated. The growth and interruption of directional pores were analyzed based on the solidification mode to determine whether the fine-grained region atop directional pores stunted the growth of Gasar pores.
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© 2014, Carl Hanser Verlag, München
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Articles in the same Issue
- Contents
- Contents
- Review
- Research trends in microwave dielectrics and factors affecting their properties: A review
- Original Contributions
- Efficiency and work performance of TiNi alloy undergoing B2 ↔ R martensitic transformation
- Fabrication of Gasar made from Cu-24 wt.% Mn alloy
- Effect of intermediate frequency electromagnetic field on the solidification structure and mechanical properties of direct chill cast Al-8 wt.%Si alloy
- Effect of Ni-based conversion coating and Ni–P electroless plating on the bonding process of pure Al and AZ31 alloy
- Effect of ball milling time on the synthesis of nanocrystalline merwinite via mechanical activation and heat treatment
- Structural and magnetic properties of Fe–Al2O3 soft magnetic composites prepared using the sol–gel method
- Improved dielectric performance of barium strontium titanate multilayered capacitor by means of pulsed laser deposition and slow injection sol–gel methods
- Effect of heat treatment on the slurry erosion resistance of high strength steel DP980
- Development of biomimetic gelatin–chitosan/hydroxyapatite nanocomposite via double diffusion method for biomedical applications
- Short Communications
- Effects of rolling rate on microstructure and mechanical properties of Mg sheets
- Effect of post-weld heat treatment on dissimilar friction stir welded AA6063 and A319 aluminium alloys
- Dielectric and magnetic properties of Ba0.8Sr0.2TiO3 – Y3Fe5O12 – YFeO3 composites
- Microwave-assisted modulated synthesis of zirconium-based metal–organic framework (Zr-MOF) for hydrogen storage applications
- DGM News
- DGM News
