Observation of interface of two kinds of bi-metal composite parts prepared by thixo-forging

Yang, Zhao; Zhou, Li; Dong, Jianxiong

doi:10.1016/s1003-6326(09)60342-3

Cited by 6 publications

(1 citation statement)

References 13 publications

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“…Wu Li [8] et al studied the horizontal continuous casting technology of AA3003/AA4045 aluminum alloy billet under electromagnetic field. Yang Zhao et al [9] prepared two complex shaped composite parts by SIMA thixoforming method, Sn-15%Pb/Pb-22%Sn and Al-7%Si/SiCp-6061, both composites have good metallurgical bonding.…”

Section: Introductionmentioning

confidence: 99%

Metallurgical Interface of 7075/6061 Bimetallic Composite Ingot Casted by Semi-Solid Slurry and Molten Metal Pouring

Zheng

Jiang

et al. 2019

SSP

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The 7075/6061 bimetallic composite ingots were prepared by semi-solid/liquid method. The microstructure characteristics of composite ingots were studied, and the diffusion law of interface components was analyzed. The results show that the semi-solid/liquid composite of 7075 and 6061 can be realized under the conditions of casting temperature of 983 K, semi-solid heating temperature of 918 K, holding time of 1h, and rapid water cooling. The obtained composite ingot has a layered distribution characteristic of "semi-solid microstructure/dendritic structure". The interface is clear, continuous, and free of impurities. From the interface to the semi-solid side, it shows such a pattern of change: “Dendritic structure” →”Semidendritic and hemispherical” → “Globularization”. Through the observation of the microstructure and the analysis of the components, the semi-solid/liquid composite mechanism is discovered to be a combination of fusion bonding and diffusion bonding.

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Section: Introductionmentioning

confidence: 99%