三维五向C<sub>f</sub>/Al复合材料不同温度下的轴向弯曲变形力学行为

doi:10.11896/cldb.19080126

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Abstract Three-dimensional five-dimensional braided M40J carbon fiber preform was used as reinforcement and ZL301 as matrix alloy. Three-dimensional five-dimensional C_f/Al composites were fabricated by vacuum pressure infiltration. The microstructure and phase composition of three-dimensional five-dimensional C_f/Al composites were studied. The mechanical behavior of axial bending deformation and the macro-morphology of bending failure were analyzed.The results show that the axial distribution of fibers is uniform and there is a small amount of infiltration defects in the braided yarns. The brittle Al₄C₃ phase exists at the interface, which is the key to the bending mechanical properties.The mechanical behavior of composites under axial bending deformation presents remarkable non-linear characteristics. The deformation process of composites at room temperature, 350 ℃ and 400 ℃ can be divided into three stages:elastic deformation stage, elastic-plastic deformation stage and plastic fracture stage.

Key words： three-dimensional five-direction braided structure C_f/Al composite bending property mechanical behavior

Published: 06 November 2020

CLC number:

TB331

Fund:National Natural Science Foundation of China(AA201301219,51765045), Jiangxi Natural Science Foundation(20151BAB206004) and Aviation Science Foundation(2019ZF056013).

About author:: Liang Shuai, a graduate student at Nanchang Hangkong University, has been studying at the Aeronautical Manufacturing Engineering Institute of Nanchang Hangkong University since September 2017. He mainly engaged in the preparation of carbon fiber reinforced aluminum matrix composites and the research of room temperature and high temperature performance.
Huan Yu, professor and doctoral supervisor of Nanchang Hangkong University, has been engaged in the teaching of foundry technology and engineering and the research of metal matrix composites for a long time. At present, the main research directions are precision forming theory and technology of large complex light alloy thin-walled castings.

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	SHUAI Liang
	YU Huan
	XU Zhifeng
	CAI Changchun
	WANG Zhenjun
	HU Yinsheng

Cite this article:

SHUAI Liang,YU Huan,XU Zhifeng, et al. Mechanical Behavior of Three-Dimensional Five-Directional C_f/Al Composites Under Axial Bending Deformation at Different Temperatures[J]. Materials Reports, 2020, 34(20): 20137-20142.

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http://www.mater-rep.com/EN/10.11896/cldb.19080126 OR http://www.mater-rep.com/EN/Y2020/V34/I20/20137

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