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赵洪炯,鲁中良,曹继伟,徐文梁,李涤尘.定向多孔GH3536微观结构控制及其力学性能[J].稀有金属材料与工程(英文),2020,49(5):1694~1700.[Hongjiong Zhao,Zhongliang Lu,JiWei Cao,WenLiang Xu and DiChen Li.Microstructure control and Mechanical Properties of Oriented Porous GH3536[J].Rare Metal Materials and Engineering,2020,49(5):1694~1700.]
Microstructure control and Mechanical Properties of Oriented Porous GH3536
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Received:January 28, 2019  Revised:March 10, 2019
DOI:
Key words: Oriented porous material  Nickel-base superalloy  Material preparation  Mechanical properties
Foundation item:国家自然科学基金资助(项目号51775418),广东省科技项目(项目号2017B090911006)
Author NameAffiliation
Hongjiong Zhao,Zhongliang Lu,JiWei Cao,WenLiang Xu and DiChen Li  
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Abstract:
      Oriented porous superalloy was prepared by freeze-casting with GH3536 powder as raw material and guar gum/CMC-Na as stabilizers. The results show that slurries could be stabilized by adding 0.4~1wt.% of guar gum or 1~3wt.% of sodium carboxymethylcellulose; as the solid loading increases from 10vol.% to 30vol.%, the width of oriented pore decreases from 308μm to 198μm and the wall thickness increases from 81μm to 223μm, with the axial and radial compressive strength improving from 10.72MPa and 9.2MPa to 75.02MPa and 78.49MPa, respectively. The fabricated oriented porous superalloy is a plastic material with the ability of absorbing energy.