Thermodynamics and solidification kinetics of Ag–Ni–Co immiscible alloys

Deng, Congkun; Jiang, Hongxiang; Zhao, Jiuzhou; Zhang, Lili; He, Jiasong

doi:10.1007/s10853-020-05431-7

Cited by 3 publications

(1 citation statement)

References 41 publications

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“…However, liquid phase separation deteriorates the mechanical and wear properties of the Al-Bi alloys formed by conventional casting. The microstructure evolution of the Al-Bi immiscible alloy during liquid phase separation is a result of the concurrent actions of nucleation, growth, Ostwald ripening, motion, and collision coagulation of the minority phase droplets [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Achieving High Self-Lubricating Performance of Al-Bi-Sm-Ti Alloys Based on the Intermetallic Compounds

Man,

Zhang,

Nong

et al. 2023

Metals

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Al-Bi immiscible alloys, as wear resistance material, have attracted increasing attention in the past. The solidification processing of alloys plays a significant role in the final solidification microstructure and properties of immiscible alloys. Here, we present a strategy to produce a homogeneous microstructure in Al-Bi alloys based on intermetallic compounds. With the addition of Sm and Ti, the effect on the microstructure and properties was discussed in detail. The Al-Bi-Sm-Ti alloys achieve high self-lubricating performance, referring to the values of the coefficient of friction and wear rate. The intermetallic compounds formed were regarded as the main anti-friction and anti-wear factors. The results of numerical simulation indicate that microsegregation in Al-Bi alloys was retarded based on the intermetallic compounds. The coefficient of friction of the Al-Bi-1Sm-2Ti alloy was 46.2% lower than that of the Al-Bi alloys at 300 m. This research provides a new perspective and guidance for designing and fabricating composites with superior self-lubricating properties.

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Section: Introductionmentioning

confidence: 99%