Aluminum has been the secondly main metallic material in the world, whose mechanical properties are very important for industrial applications. The sizes and shapes of grains are important in determining the performan...Aluminum has been the secondly main metallic material in the world, whose mechanical properties are very important for industrial applications. The sizes and shapes of grains are important in determining the performance in structural applications. How to control the microstructure during solidification process has been a research focus. This paper gives an overview on the recent progress in microstructure control for aluminium alloys solidification process, and introduces the different methods to control the microstructure in detail. The mechanisms of microstructure control for different methods are also discussed. Finally, a brief prospect on future work is presented.展开更多
The effect of trace element vanadium on the superplasticity of 5083 aluminium alloy sheets was studied by high temperature tensile optical microscopy. The results showed that trace element vanadium added into 5083 all...The effect of trace element vanadium on the superplasticity of 5083 aluminium alloy sheets was studied by high temperature tensile optical microscopy. The results showed that trace element vanadium added into 5083 alloy could refine the fibrous structure of the rolling sheet, restrain the grain growth during recrystallizafion, and improve the superplasficity of 5083 alu-minium alloy. The size of recrystallized grains of the sheets was reduced from 100 to 20 um, and the elongation percentage of 5083 aluminium alloy sheets in 510℃ was improved from 208% to 254% after the trace element vanadium was added into the conventional 5083 aluminium alloy.展开更多
基金supported by the National Basic Research Program of China(2012CB723307 and 2012CB619506)the National Key Technology Research and Development Program of the Ministry of Science and Technology of China (2011BAE21B01)+4 种基金the National Natural Science Foundation of China (51071042 and 51204045)the Wuhan National High Magnetic Field Center (201103)the Fundamental Research Funds for the Central Universities (N090109001 and N100309002)Liaoning Provincial Doctoral Startup Fund (20101036)China Postdoctoral Science Foundation (20100481193)
文摘Aluminum has been the secondly main metallic material in the world, whose mechanical properties are very important for industrial applications. The sizes and shapes of grains are important in determining the performance in structural applications. How to control the microstructure during solidification process has been a research focus. This paper gives an overview on the recent progress in microstructure control for aluminium alloys solidification process, and introduces the different methods to control the microstructure in detail. The mechanisms of microstructure control for different methods are also discussed. Finally, a brief prospect on future work is presented.
基金supported by the National Natural Science Foundation of China (Grant No. 51071042)the National Basic Research Program of China ("973" Project) (Grant No. 2005CB623707)+2 种基金the Fundamental Research Funds for the Central Universities (Grant Nos. N090109001,N100309002)the Liaoning Province Doctoral Startup Fund (Grant No. 20101036)the China Postdoctoral Science Foundation (Grant No. 20100481193)
文摘The effect of trace element vanadium on the superplasticity of 5083 aluminium alloy sheets was studied by high temperature tensile optical microscopy. The results showed that trace element vanadium added into 5083 alloy could refine the fibrous structure of the rolling sheet, restrain the grain growth during recrystallizafion, and improve the superplasficity of 5083 alu-minium alloy. The size of recrystallized grains of the sheets was reduced from 100 to 20 um, and the elongation percentage of 5083 aluminium alloy sheets in 510℃ was improved from 208% to 254% after the trace element vanadium was added into the conventional 5083 aluminium alloy.
