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王香,聂其东,李竞涛,马旭梁,李新林.真空吸铸法制备(HA+β-TCP)/Mg-3Zn相互渗透复合材料的组织和性能[J].稀有金属材料与工程(英文),2018,47(10):3080~3087.[WANG Xiang,NIE Qi-dong,LI Jing-tao,MA Xu-liang and LI Xin-lin.Microstructure and properties of interpenetrating (HA+β-TCP)/Mg-3Zn composites fabricated by suction casting[J].Rare Metal Materials and Engineering,2018,47(10):3080~3087.]
Microstructure and properties of interpenetrating (HA+β-TCP)/Mg-3Zn composites fabricated by suction casting
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Received:December 09, 2016  Revised:August 27, 2018
DOI:
Key words: (HA+β-TCP)/Mg-3Zn composites  suction exsorption  microstructure  corrosion behavior
Foundation item:国家自然科学基金(51101039)
Author NameAffiliation
WANG Xiang,NIE Qi-dong,LI Jing-tao,MA Xu-liang and LI Xin-lin  
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Abstract:
      The interpenetrating (HA+β-TCP)/Mg-3Zn composites were fabricated by infiltrating Mg-3Zn alloy into porous HA+β-TCP with different HA content using suction casting technique, the microstructure, mechanical properties and corrosion behaviors of the composites have been evaluated. It presented that the molten Mg-3Zn alloy had infiltrated not only into the pores but also into the struts of the porous HA+β-TCP scaffold to forming a compact composite. The Mg-3Zn alloy contacted to the HA+β-TCP scaffold closely, and no reaction layer can be found. The compressive strength of the (HA+β-TCP)/Mg-3Zn composite with different HA content were 115~196 MPa, which were about 350-fold higher than that of the original porous HA+β-TCP scaffold and 44 %-75 % of the strength of the Mg-3Zn bulk alloy. The corrosion resistance of the composites was better than that of the Mg-3Zn bulk alloy, and the mechanical and corrosive behavior of the composites were controled by the choice of HA /β-TCp ratio.