Semisolid-rolling and annealing process of woven carbon fibers reinforced Al-matrix composites  

作　　者：Junjia Zhang Shichao Liu Yiping Lu Li Jiang Yubo Zhang Tingju Li Junjia Zhang Shichao Liu Yiping Lu Li Jiang Yubo Zhang Tingju Li(Key Laboratory of Solidification Control and Digital Preparation Technology (Liaoning Province), School of Materials Science and Engineering, DalianUniversity of Technology, Dalian 116024, China)

机构地区：Key Laboratory of Solidification Control and Digital Preparation Technology （Liaoning Province）, School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China

出　　处：《Journal of Materials Science & Technology》2017年第7期623-629,共7页材料科学技术（英文版）

基　　金：supported by the National Natural Science Foundation of China (Nos. 51271042 and 51501027);the Fundamental Research Funds for the Central Universities, the Key Laboratory of Basic Research Projects of Liaoning Province Department of Education (No. LZ2014007);the Natural Science Foundation of Liaoning Province (No. 2014028013);China Postdoctoral Science Foundation (No. 2015M570246)

摘　　要：Semisolid-rolling method was successfully developed to prepare the Ni-coated woven carbon fibers reinforced Al-matrix composite. Due to the appropriate matrix flowability and rolling pressure, the Al-matrix could infiltrate into the woven fibers sufficiently and attach to the reinforcements closely forming a smooth interface. The rolling speed of 4 rad/min offered a subtle equilibrium between the heat transfer and the material deformation. The covering matrix should be controlled at semisolid state to provide a better infiltration behavior and a protective effect on the carbon fibers. With the addition of fibers, an improvement for more than 25% was obtained in the bending strength of the materials. Furthermore, the woven carbon fibers could strengthen the composite in multiple directions, rather than only along the fiber longitudinal directions. The annealing process promoted the Ni coating to react with and to diffuse into the matrix, resulted in an obvious increase of the bending strength.Semisolid-rolling method was successfully developed to prepare the Ni-coated woven carbon fibers reinforced Al-matrix composite. Due to the appropriate matrix flowability and rolling pressure, the Al-matrix could infiltrate into the woven fibers sufficiently and attach to the reinforcements closely forming a smooth interface. The rolling speed of 4 rad/min offered a subtle equilibrium between the heat transfer and the material deformation. The covering matrix should be controlled at semisolid state to provide a better infiltration behavior and a protective effect on the carbon fibers. With the addition of fibers, an improvement for more than 25% was obtained in the bending strength of the materials. Furthermore, the woven carbon fibers could strengthen the composite in multiple directions, rather than only along the fiber longitudinal directions. The annealing process promoted the Ni coating to react with and to diffuse into the matrix, resulted in an obvious increase of the bending strength.

关 键 词：Metal-matrix composites Woven carbon fiber Semisolid-rolling process Annealing Mechanical property 

分 类 号：TB333[一般工业技术—材料科学与工程] TG335.8[金属学及工艺—金属压力加工]