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

• Published in: Journal of materials science & technology 2017-07, Vol.33 (7), p.623-629
• Main Authors: Zhang, Junjia, Liu, Shichao, Lu, Yiping, Jiang, Li, Zhang, Yubo, Li, Tingju
• Format: Article
• Language: English
• Subjects: Annealing; Mechanical property; Metal-matrix composites; Semisolid-rolling process; Woven carbon fiber; 半固态轧制; 增强复合材料; 弯曲强度; 机织; 渗透性能; 碳纤维; 纤维增强铝基复合材料; 退火工艺
• ISSN: 1005-0302; 1941-1162
• DOI: 10.1016/j.jmst.2017.01.002

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.