Effect of Fiber Preheating Temperature on the Density and Tensile Strength of 2.5D-C<sub>f</sub>/Al Composites Fabricated by Vacuum Pressure Infiltration Process

Yuan Xiumei; Yu Huan; Wang Zhenjun; Xu Zhifeng; Zhu Shixue

doi:10.15980/j.tzzz.2016.03.015

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Effect of Fiber Preheating Temperature on the Density and Tensile Strength of 2.5D-C_f/Al Composites Fabricated by Vacuum Pressure Infiltration Process
Vol. 36, Issue 3, Pages: 278-282(2016)
Published： 2016 ，
DOI： 10.15980/j.tzzz.2016.03.015

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[1]袁秀妹,余欢,王振军,徐志锋,朱世学.纤维预热温度对2.5D-C_f/Al复合材料致密度和强度的影响[J].特种铸造及有色合金,2016,36(03):278-282.

Yuan Xiumei, Yu Huan, Wang Zhenjun, et al. Effect of Fiber Preheating Temperature on the Density and Tensile Strength of 2.5D-C_f/Al Composites Fabricated by Vacuum Pressure Infiltration Process. [J]. Special Casting & Nonferrous Alloys 36(3):278-282(2016)
[1]袁秀妹,余欢,王振军,徐志锋,朱世学.纤维预热温度对2.5D-C_f/Al复合材料致密度和强度的影响[J].特种铸造及有色合金,2016,36(03):278-282. DOI： 10.15980/j.tzzz.2016.03.015.

Yuan Xiumei, Yu Huan, Wang Zhenjun, et al. Effect of Fiber Preheating Temperature on the Density and Tensile Strength of 2.5D-C_f/Al Composites Fabricated by Vacuum Pressure Infiltration Process. [J]. Special Casting & Nonferrous Alloys 36(3):278-282(2016) DOI： 10.15980/j.tzzz.2016.03.015.

摘要

以石墨纤维2.5D织物为增强体

ZL301铝合金为基体

采用真空气压浸渗法制备了碳纤维体积分数为42%的2.5D-C

/ZL301复合材料

研究了纤维预热温度对复合材料致密度和力学性能的影响。结果表明

随着纤维预热温度的升高

2.5D-C

/Al复合材料的致密度呈现先增加后减少的趋势;而复合材料室温抗拉强度随纤维预热温度提高而持续下降

这是因界面反应加剧而导致的界面结合过强而导致的复合材料力学性能恶化。

Abstract

2.5D-C

/Al composites with 2.5Dgraphite fiber as reinforcement and ZL301 as matrix alloy were fabricated by the vacuum pressure infiltration method.The effects of fiber preheating temperature on the relative density and tensile strength of 2.5D-C

/Al composites were investigated.The results show that the distribution of M40 fiber reunited in the matrix tends to be more uniform

while the relative density is increased firstly and then decreased

the tensile strength of the composites is decreased with the increase of fiber preheating temperature.The high interface strength induced by excessive interfacial reaction at high fiber preheating temperature may damage the fiber strength as well as leading to brittle fracture during the tensile loading process.