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Effect of extrusion process on microstructure and mechanical and corrosion properties of biodegradable Mg-5Zn-1.5Y magnesium alloy

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International Journal of Minerals,Metallurgy and Materials 2022年第3期29卷 490-502页

作者： Hassan Jafari Amir Houshang mojiri tehrani mojiri tehrani Mahsa Heydari Materials Engineering Department Faculty of Materials Engineering and Interdisciplinary ScienceShahid Rajaee Teacher Training University16785-136 TehranIran

The effect of extrusion temperature and ratio on the microstructure, hardness, compression, and corrosion behavior of Mg-5Zn-1.5Y alloy were analyzed in this study. The microstructural observations revealed that the cast alloy consists of α-Mg grains, and Mg3Zn6Y and Mg3Zn3Y2 intermetallic compounds, mostly located on the α-Mg grain boundaries. Extruded alloy at higher temperatures showed coarser grain microstructures, whereas those extruded at higher ratios contained finer ones, although more dynamic recrystalized grains with lower intermetallics were measured at both conditions. Combined conditions of the lower temperature (340°C) and higher ratio (1:11.5) provided higher compressive strengths. However, no significant hardness improvement was achieved. The extrusion process could decrease the corrosion rate of the cast alloy in simulated body fluid for over 80% due to primarily the refined microstructure. The extrusion temperature showed a more pronounced effect on corrosion resistance compared to the extrusion ratio, and the higher the extrusion temperature, the higher the corrosion resistance.

关键词： magnesium alloy biodegradable extrusion microstructure mechanical properties corrosion

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Erratum to:Effect of extrusion process on microstructure and mechanical and corrosion properties of biodegradable Mg-5Zn-1.5Y magnesium alloy

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International Journal of Minerals,Metallurgy and Materials 2022年第6期29卷 1305-1305页

作者： Jafari, Hassan tehrani, Amir Houshang mojiri Heydari, Mahsa Materials Engineering Department Faculty of Materials Engineering and Interdisciplinary Science Shahid Rajaee Teacher Training University Tehran Iran

Erratum to:International Journal of Minerals,Metallurgy and Materials Volume 29,Number 3,March 2022,Page 490 https://***/10.1007/s12613-021-2275-5 The original version of this article unfortunately contained a *** author’s name in the original version is incorrect,which is:Hassan Jafari,Amir Houshang mojiri tehrani,mojiri tehrani,and Mahsa Heydari The correct version is given below:Hassan Jafari,Amir Houshang mojiri tehrani,and Mahsa Heydari The original version PDF file has been replaced by the corrected version PDF file.

关键词： microstructure corrosion alloy

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