Metallograph and scanning electron microscope studies of the distribution and function of rare earth metals in copper show that RE can reduce the oxygen content, fine the grain cells of copper, and enhance the mechani...Metallograph and scanning electron microscope studies of the distribution and function of rare earth metals in copper show that RE can reduce the oxygen content, fine the grain cells of copper, and enhance the mechanical and electrical properties. Excess RE in copper will lead to the formation of some RE compounds like Fe-Cu-RE and FECu6.展开更多
The development and application of rare earth aluminium alloys began in the 1960s in China.The represen- tative work was the usage of rare earth metals in alumino-silicon alloys for piston.In the 1970s,its initial sta...The development and application of rare earth aluminium alloys began in the 1960s in China.The represen- tative work was the usage of rare earth metals in alumino-silicon alloys for piston.In the 1970s,its initial stage. rare earths were used in enhanced AIMgSi alloy transmission line and FeCr Al alloy electric heating wire.During its developing period(from 1980 to 1985),in the field of smelting,after the electrolytic preparation of RE-Al master alloys at relatively low temperature,a new technique was invented that rare earth compounds were added to commercial aluminium electrowinning cell to produce RE-Al alloys directly.It opened the way for the appli- cation of rare earths in industry on a large scale.In the field of application,it was found that the addition of rare earths could improve the conductivity and processing property of aluminium alloys.The application of rare earths to aluminium conductors and products had made a breakthrough progress.Since 1986,its golden age,the study,production and application of aluminium alloys containing rare earths have been developing at an amazing speed,running neck and neck with the application of RE in agriculture,textile dyeing,and cast iron.展开更多
文摘Metallograph and scanning electron microscope studies of the distribution and function of rare earth metals in copper show that RE can reduce the oxygen content, fine the grain cells of copper, and enhance the mechanical and electrical properties. Excess RE in copper will lead to the formation of some RE compounds like Fe-Cu-RE and FECu6.
文摘The development and application of rare earth aluminium alloys began in the 1960s in China.The represen- tative work was the usage of rare earth metals in alumino-silicon alloys for piston.In the 1970s,its initial stage. rare earths were used in enhanced AIMgSi alloy transmission line and FeCr Al alloy electric heating wire.During its developing period(from 1980 to 1985),in the field of smelting,after the electrolytic preparation of RE-Al master alloys at relatively low temperature,a new technique was invented that rare earth compounds were added to commercial aluminium electrowinning cell to produce RE-Al alloys directly.It opened the way for the appli- cation of rare earths in industry on a large scale.In the field of application,it was found that the addition of rare earths could improve the conductivity and processing property of aluminium alloys.The application of rare earths to aluminium conductors and products had made a breakthrough progress.Since 1986,its golden age,the study,production and application of aluminium alloys containing rare earths have been developing at an amazing speed,running neck and neck with the application of RE in agriculture,textile dyeing,and cast iron.
