Evolution of interfacial microstructures and mechanical properties of Cf/AZ91 composite during heat treatment
作者: Shaolin LiLehua QiTing ZhangJiming ZhouHejun Li
作者单位: 1State Key Laboratory of Solidification Processing, Carbon/Carbon Composites Research Center, Northwestern Polytechnical University, Xi'an, 710072, PR China
2School of Mechatronic Engineering, Northwestern Polytechnical University, Xi'an, 710072, PR China
刊名: Vacuum, 2017
来源数据库: Elsevier Journal
DOI: 10.1016/j.vacuum.2017.08.031
关键词: Metal matrix composites (MMC)Interfacial microstructuresHeat treatmentMechanical properties
英文摘要: Abstract(#br)C f /AZ91 composite was fabricated by liquid-solid extrusion following vacuum pressure infiltration technique (LSEVI). There were some inevitable shortcomings, such as interfacial mismatch stress, in spite of the advantages of LSEVI. Heat treatment was conducted to modify the composite. It was confirmed that the interface and mechanical properties of the C f /AZ91 composite could be modified by heat treatment. The number of interfacial precipitates Mg 17 Al 12 decreased and the size of the granular precipitates was reduced from about 500 nm to about 200 nm due to recovery. Nanocrystalline ceramic particles MgO with disordered intergranular films and dislocations, resulting from unusual deformation mechanisms and interfacial stress, were observed at the interface. The tensile...
全文获取路径: Elsevier  (合作)
影响因子:1.53 (2012)

  • mechanical 机械的
  • interfacial 界面的
  • composite 复合的
  • properties 道具
  • treatment 处理
  • during 在的期间