Microstructure Characteristics of the Ni-Si Composites

2018 5th International Conference on Advanced Composite Materials and Manufacturing Engineering

Cui, Chunjuan^1,2 ; Ren, Chiqiang^1 ; Tian, Lulu^1 ; Wang, Pei^1 ; Wang, Songyuan^1

School of Metallurgical Engineering, Xi'An University of Architecture and Technology, Xi'an, China^1

Shaanxi Engineering Technology Research Center for Wear-resisting Materials, Xi'an, China^2

关键词: Crystal growth mechanism;    Eutectic composition;    Eutectic points;    Hypereutectic alloy;    Hypoeutectic alloys;    Liquid mixture;    Metallic alloys;    Microstructure characteristics;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/394/2/022012/pdf
DOI  :  10.1088/1757-899X/394/2/022012

来源: IOP

【 摘 要 】

A hypoeutectic alloy is a metallic alloy which has a composition less the eutectic point, and a hypereutectic alloy is a metallic alloy which has a composition beyond the eutectic point. As the temperature of a non-eutectic composition is lowered, the liquid mixture will precipitate one component of the mixture before the other. In a non-eutectic solution, there will be a proeutectoid phase, so microstructure is of importance to understand the crystal growth mechanism. In the present paper microstructure characteristics of Ni-Si composites were investigated and the crystal growth mechanism was revealed.