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王振军,董敬涛,Gui Wang,余欢,徐志锋,Matthew S. Dargusch.2.5维织物Cf/Al复合材料制备及其经纬向拉伸变形力学行为研究[J].稀有金属材料与工程(英文),2017,46(12):3744~3752.[Wang Zhenjun,Dong Jingtao,Gui Wang,Yu Huan,Xu Zhifeng,Matthew S. Dargusch.Research on the preparation of 2.5D woven fabric Cf/Al composite and its tensile deformation behavior in warp /weft direction[J].Rare Metal Materials and Engineering,2017,46(12):3744~3752.]
Research on the preparation of 2.5D woven fabric Cf/Al composite and its tensile deformation behavior in warp /weft direction
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Received:October 20, 2016  Revised:January 11, 2017
DOI:
Key words: 2.5D woven fabric  Cf/Al composite  microstructure  interface  mechanical property
Foundation item:国家自然科学基金(51365043),江西省自然科学基金(20151BAB206004)和轻合金加工科学与技术国防重点学科实验室开放基金资助项目(GF201301007)
Author NameAffiliationE-mail
Wang Zhenjun Nanchang Hangkong University,Key discipline laboratory of light alloy processing science and technology wangzhj@nchu.edu.cn 
Dong Jingtao Nanchang Hangkong University,Key discipline laboratory of light alloy processing science and technology 563708770@qq.com 
Gui Wang The University of Queensland, St Lucia, QLD 4072, Australi  
Yu Huan Nanchang Hangkong University,Key discipline laboratory of light alloy processing science and technology  
Xu Zhifeng Nanchang Hangkong University,Key discipline laboratory of light alloy processing science and technology  
Matthew S. Dargusch The University of Queensland, St Lucia, QLD 4072, Australi  
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Abstract:
      2.5D woven fabric Cf/Al composites with 2.5D graphite fiber fabric as reinforcement and ZL301 as matrix alloy was fabricated by the vacuum pressure infiltration method. The density and microstructure of the composites, which were prepared with three fabric temperature level, was investigated. The crystal structure and composition of the interfacial product was revealed. The quasi-static tensile test and electron fractography was carried out to analyze the mechanical behavior of the composite along the warp and weft direction. The results indicated that the fabric structure can be maintained well, in which the fibers distributed in matrix alloy uniformly. With the increase of fabric temperature, the density of the composites was improved slightly while the relative amount of interfacial product, which was identified to be Al4C3 phase with rod shape, increased obviously, which lead to the reduction of mechanical properties both in warp and weft direction. The tensile strength in warp direction has been proven to be higher than that in weft direction. The stress-strain behavior in warp direction exhibit an significant nonlinear characteristic. The tensile deformation process both in warp and weft direction can be divided into three stages, i.e. the initial elastic deformation segment, the middle elastoplastic deformation segment and the final damage and fracture segment.