Effect of Cerium on Microstructure and Properties of Aluminum Alloys
Rare earth elements have received great attention due to their high efficiency.As the most abundant rare earth element in the crust,Ce can greatly refine the grains by adding Al alloy,and at the same time,Al11Ce3 second phase can be generated,which plays a role in strengthening the second phase and greatly improv-ing the hardness,strength,high temperature resistance,conductivity,etc.These special properties enable Al-Ce alloy to be used in long-distance overhead cables,low-temperature storage tanks for aerospace fuel,internal parts of military aircraft modern lightweight automobile body and other fields.Based on this,this paper systemat-ically summarizes the research results of the cast ability,microstructure and properties of Ce on different Al al-loy systems at home and abroad,and looks forward to its application prospects.
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