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 microgra...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.展开更多
文摘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.
