J Mater Sci Technol ›› 1992, Vol. 8 ›› Issue (3): 214-218.

• Articles • Previous Articles     Next Articles

Influence of Laser Coating on Microstructure and Properties of an Al-Si Alloy

LI Yunlong HU Jiandong LIAN Jianshe LJian Dept.of Metal Materials Engineering,Jilin Univer sity of Technology,Changchun,130025,ChinaChangchun College of Optics and Fine Mechanics,Changchun,130021,ChinaTo whom correspondence should be addressed   

  • Received:1992-05-28 Revised:1992-05-28 Online:1992-05-28 Published:2009-10-10

Abstract: The microstructure and wear resistance of a cast Al-Si alloy coated with metal and rare earth elements and treated by the laser rapid melt-solidification(LRMS)are studied in the pres- ent work.Optical and SEM micrographic analyses showed that a superfine microstructure was ob- tained,and the hardness was remarkably enhanced by the LRMS treatment.Wear test showed that the rapid melt-solidified microstructure had higher wear resistance than that treated by ordinary solid solution treatment.

Key words: Al-Si alloy, laser coating microstructure, properties