Study on controlled segregation of Al-Sn alloys for bearings

Kyung Hyun Kim (1) , M.A. Slazhniev (1) , Se Won Kim (1) , Hyun Suk Sim (1) , Kwangjun Euh (2)

1 Dong San Tech. Co
2 Korea Institute of Materials Science

In this study, Sn particles are finely and uniformly distributed in the Al-Sn alloy through a strong pulse treatment on the molten alloy. The Sn particle size in the conventionally cast Al-25%Sn alloy is about 80μm while that in the pulse-treated alloy is reduced to 45μm with a uniform distribution. Applying a strong pulse to an Al-Sn alloy causes a fine and uniform microstructure and the pulse-treated Al-Sn alloy is preferable for a metal bearing material where an excellent lubricity with a proper wear resistance are necessary.

Mots clés: Segregation; distribution; microstructures; particles; bearing materials

Domaines: Sciences de l'ingénieur [physics]

Kyung Hyun Kim, M.A. Slazhniev, Se Won Kim, Hyun Suk Sim, Kwangjun Euh. Study on controlled segregation of Al-Sn alloys for bearings. 8th International Conference on Electromagnetic Processing of Materials, Oct 2015, Cannes, France. ⟨hal-01334926⟩