化学镀镍(SCF-Ni)短炭纤维增强铝基复合材料的显微组织与力学性能

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Abstract The short carbon fiber that completely coated with nickel layer by electroless was prepared. The nickel-plated short carbon fibers (SCF-Ni) and the aluminum silicon alloy powder (Al-Si) were uniformly mixed by wet mixing method. The aluminum matrix composites strengthened by SCF-Ni were prepared by the plasma sintering technique (SPS). The surface of the carbon fibers and the morphology of the composites were observed by SEM and the interface of the composites was analyzed by XRD. The effects of the content of SCF-Ni on the microstructure and mechanical properties of the composites were investigated. The experimental results show that with the increase of the mass fraction of SCF-Ni, the density of the composites decreases, the hardness increases, and the room temperature tensile strength increases first and then decreases. When the mass fraction of SCF-Ni reaches 9%, the tensile strength reaches a maximum value (152 MPa), which is 68% higher than the tensile strength (90 MPa) of the substrate.

Key words： electroless plating nickel coating short carbon fiber aluminum matrix composite tensile strength

Received: 27 December 2019 Published: 19 June 2020

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	JIANG Wenting
	LI Guodong
	YANG Juan
	LIU Yang
	YU Shijie

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JIANG Wenting,LI Guodong,YANG Juan, et al. Microstructure and mechanical property of aluminum matrix composite strengthened by short carbon fiber with Ni-coating (SCF-Ni)[J]. Materials Science and Engineering of Powder Metallurgy, 2020, 25(2): 148-156.

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http://pmbjb.csu.edu.cn/EN/ OR http://pmbjb.csu.edu.cn/EN/Y2020/V25/I2/148

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