Improvement of Fe Rich Phase Morphology in Recycled Aluminum Alloys
The purpose of this study was to clarify the synergistic effect and optimal ratio of Mn and Cr elements on the Fe rich phase in recycled aluminum alloys.The microstructure and mechanical properties of the alloy were studied using optical microscopy,scanning electron microscopy,and tensile testing machines.The recycled aluminum alloy without micro alloying elements was used as a comparison.The research results showed that under the experimental conditions,adding different Mn and Cr elements caused changes in the morphology of the Fe containing phase when the Fe element content was 0.3％.When the Fe∶Mn∶Cr ratio was about 5∶3∶1 under the conditions of this experiment,the Fe containing phase in the alloy had the best morphology,transforming from needle like to Chinese character like or granular.Further refining the alloy with 0.04％RE element achieved the best performance.
万方数据
维普
