Effect of Zn on the Microstructure and Mechanical Properties of Al-Si Non-Heat Treatment Alloy
The effects of Zn content of 0.5wt%,1.0wt%,and 1.5wt%on the microstructure and mechanical properties of Al Si Mn Mg heat free cast aluminum alloy were studied.By metamorphism,different microstructures were observed.The results indicate that with the increase of Zn element content,the tensile strength and yield strength of the alloy increase,while the elongation rate decreases.At the same time,it was found that with the increase of Zn element content,the modification effect of the alloy decreased in different degrees.
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