Microstructure and mechanical properties of undercooled Fe80C5Si10B5 eutectic alloy

Chen, Z.; Zhang, Y.; Wang, S.; Zhang, J. Y.; Qing, Tao; Zhang, P.

doi:10.1016/j.jallcom.2018.03.065

Cited by 20 publications

(1 citation statement)

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“…At present, the research on Au-12 wt.%Ge alloy at home and abroad mainly focuses on the application process and properties, while the solidification behaviors of Au-12 wt.%Ge alloy are rarely studied. As a common casting alloy, the properties of eutectic alloys are not only dependent on its composition, but also closely related to its solidified structure [8]. Compared with materials prepared by traditional methods, rapid solidification can not only avoid various defects that may occur in the conventional casting process of alloy melt, but also obtain microstructures with uniform composition and specific phase structure, and provide a new way to improve the physical, chemical and mechanical properties of metal materials and develop new materials [9].…”

Section: Introductionmentioning

confidence: 99%

Correlation between Solidified Microstructure Evolution and Undercooling of Au-12 Wt.%Ge Eutectic Alloy

Zhu

Xiong

et al. 2020

MSF

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Highly undercooled solidification experiments were carried out by melt purification combined with cyclic superheating method on Au-12 wt.%Ge eutectic alloy. The solidification structures of Au-12 wt.%Ge eutectic alloy under different undercoolings were also analyzed by using the scanning electron microscope (SEM). The experimental results revealed that the maximum undercooling could reach up to 102 K. The microstructure analysis showed that the coarse bulk eutectic existed in the solidification structure when the undercooling was less than 34 K. When the undercooling was larger than 34 K and less than 56 K, the solidification structure transformed into cellular eutectic. The coarse primary (α-Au) phase precipitated from the undercooled alloy melt when the undercooling was larger than 56 K. The volume fraction of the primary (α-Au) phase gradually increased with the increase of undercooling. In this paper, a method to regulate the solidification structure of Au-12 wt.%Ge eutectic alloy is proposed, which provides a new way to improve the solidification structure and has important guiding significance for the processing and forming process of Au-12 wt.%Ge eutectic alloy.

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Section: Introductionmentioning

confidence: 99%