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Influence of the solidification temperature range on Gasar structures made from Cu–Mn alloys

  • Xingming Zhang , Yanxiang Li , Yuan Liu and Huawei Zhang
Published/Copyright: September 15, 2014
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 105 Issue 9

Abstract

In this study, the influence of the solidification temperature range of an alloy system on Gasar structures is investigated from the aspect of solidification mode and mushy zone length. The solidification mode and mushy zone length for various Cu–Mn alloys during unidirectional solidification are predicted by theoretical analysis. The calculated data indicate that it is reasonable, possible, but difficult to fabricate porous Cu-34.6 wt.% Mn, Cu-24 wt.% Mn, and Cu-46.6 wt.% Mn alloys by the Gasar process, respectively. Accordingly, lotus-type porous Cu-34.6 wt.% Mn alloy with regularly oriented pores was prepared and solidified with a cellular structure. Porous Cu-24 wt.% Mn alloy with directional pores could be fabricated, solidifying with a columnar dendritic structure. Porous Cu-46.6 wt.% Mn alloy with irregular large pores was obtained, and solidified with an equiaxed dendritic structure.

Keywords: Gasar process; Porous Cu–Mn alloy; Unidirectional solidification; Solidification temperature range
* Correspondence address, Prof. Yanxiang Li, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China, Tel.: +86-10-62773640, Fax: +86-10-62773640, E-mail:

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Received: 2014-01-29
Accepted: 2014-03-19
Published Online: 2014-09-15
Published in Print: 2014-09-15

© 2014, Carl Hanser Verlag, München

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  3. Original Contributions
  4. Diffusivities and atomic mobilities of an Sn–Ag–Bi–Cu–Pb melt
  5. Experimental study of the phase relations in the Fe–Cr–Si ternary system at 700°C
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https://doi.org/10.3139/146.111096
Keywords for this article
Gasar process; Porous Cu–Mn alloy; Unidirectional solidification; Solidification temperature range

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Diffusivities and atomic mobilities of an Sn–Ag–Bi–Cu–Pb melt
  5. Experimental study of the phase relations in the Fe–Cr–Si ternary system at 700°C
  6. Effect of molybdenum on the microstructure, mechanical properties and corrosion behavior of Ti alloys
  7. Mechanism of grain refinement and coarsening in undercooled Ni–Fe alloy
  8. Effects of copper content and liquid separation on the microstructure formation of Co–Cu immiscible alloys
  9. Influence of the solidification temperature range on Gasar structures made from Cu–Mn alloys
  10. Effect of ageing time on mechanical properties and tribological behaviour of aluminium hybrid composite
  11. Microstructure and tensile properties of a friction stir welded Al–Mg–Si alloy
  12. Lüders effect in Al 99.7% extruded via the KoBo method
  13. Reduced graphene oxide nanocomposites with different diameters and crystallinity of TiO2 nanoparticles – synthesis, characterization and photocatalytic activity
  14. Constitutive modelling of mill loads during hot rolling of AISI 321 austenitic stainless steel
  15. X-ray stress measurement with two-dimensional detector based on Fourier analysis
  16. People
  17. People
  18. People
  19. DGM News
  20. Personal
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