Fabrication and Compressive Behavior of GASAR Al-5Cu Alloys

Zhang Xinglu; Olga Komissarchuk; Hao Hai

doi:10.15980/j.tzzz.2017.04.022

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Fabrication and Compressive Behavior of GASAR Al-5Cu Alloys
Vol. 37, Issue 4, Pages: 423-427(2017)
Published： 2017 ，
DOI： 10.15980/j.tzzz.2017.04.022

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[1]张兴禄,Olga Komissarchuk,郝海.GASAR制备Al-5Cu多孔合金及其压缩性能[J].特种铸造及有色合金,2017,37(04):423-427.

Zhang Xinglu, Olga Komissarchuk, Hao Hai. Fabrication and Compressive Behavior of GASAR Al-5Cu Alloys. [J]. Special Casting & Nonferrous Alloys 37(4):423-427(2017)
[1]张兴禄,Olga Komissarchuk,郝海.GASAR制备Al-5Cu多孔合金及其压缩性能[J].特种铸造及有色合金,2017,37(04):423-427. DOI： 10.15980/j.tzzz.2017.04.022.

Zhang Xinglu, Olga Komissarchuk, Hao Hai. Fabrication and Compressive Behavior of GASAR Al-5Cu Alloys. [J]. Special Casting & Nonferrous Alloys 37(4):423-427(2017) DOI： 10.15980/j.tzzz.2017.04.022.

摘要

利用GASAR法（固-气共晶定向凝固法）制备了Al-5Cu多孔合金

研究了温度、氢气压力对孔隙率的影响。温度与饱和氢气压力的提高可以提高氢气在液态Al-5Cu合金中的溶解度

使孔隙率增加。研究了GASAR制备Al-5Cu合金中气孔的形成机理

气孔在Al-Cu共晶相中形成

并随着液相与共晶相的界面的移动而生长。此外

还对不同孔隙率的GASAR制备Al-5Cu的压缩性能进行了测试。

Abstract

Porous Al-5Cu alloys were fabricated by GASAR（the metal-gas eutectic method）method.Influences of temperature and hydrogen pressure on porosity of the GASAR Al-5Cu alloys were investigated.The results reveal that increase of temperature and hydrogen pressure can improve the hydrogen solubility in the liquid Al-Cu alloy

resulting in the increase of porosity.The mechanism of pore formation in GASAR Al-5Cu alloy is described:pores formed in eutectic phase and grown with the movement of liquid/eutectic solid interface.In addition

the compressive behavior of GASAR Al-5Cu was also analyzed.