Zheng Fei, Huang Shangyu, Liu Shengfa, et al. Properties of Continuous Cf/Al Composites Prepared by Electromagnetic Forming[J]. Special Casting & Nonferrous Alloys, 2017,37(8):891-894.
Zheng Fei, Huang Shangyu, Liu Shengfa, et al. Properties of Continuous Cf/Al Composites Prepared by Electromagnetic Forming[J]. Special Casting & Nonferrous Alloys, 2017,37(8):891-894. DOI: 10.15980/j.tzzz.2017.08.023.
基于电磁成形制备连续Cf/Al复合材料
摘要
利用电磁成形技术制备连续碳纤维增强铝基复合材料
解决了传统制备工艺中界面反应严重、制备周期长、设备要求高等问题。在碳纤维预热温度为380℃
熔炼温度为900℃
最终保温温度为750℃等工艺参数下
研究了电磁成形过程中放电电压对复合材料微观组织和力学性能的影响。结果表明
当放电电压为2 500V时
复合材料界面平整
结合良好
界面处未见Al
4
C
3
脆性相的生成
且相比基体
复合材料的抗拉强度从91.10 MPa提高到了101.76 MPa
增加了11.7%
硬度(HBW)达到35.8。
Abstract
Continuous carbon reinforced aluminum matrix composites were prepared through electromagnetic forming technology to improve serious interface reaction
long preparation period and high device requirement in traditional methods.The effects of discharge voltage on microstructure and mechanical properties of the composites prepared by the optimized parameters
such as the preheating temperature of carbon fiber of 380 ℃
smelting temperature of aluminum alloy of 900 ℃ and heat preservation temperature of 750 ℃.The results reveal that with the charging voltage of 2 500 V
interfaces of the composites exhibits well-bonded with absence of Al
4
C
3
brittle phases in the interfaces.Compared with those of the matrix
the tensile strength and Brinell hardness of C
f
/Al composites are increased from 91.10 MPa to 101.76 MPa