|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Magnesium Technology 2017
||I-29: Effects of Alloying Elements on Mechanical and Corrosion Properties of Extruded Mg-Al-Ca Alloys
||Hyunkyu Lim, Wonseok Yang, Tae yang Kwak, Youngkyun Kim, Young-Ok Yoon, Shae K. Kim
|On-Site Speaker (Planned)
Although magnesium alloys have attracted attention as light-weight structural materials due to the low density, their low absolute strengths and low ignition-resistance should be improved to apply to aerospace and military industries. Therefore, the most researches on the development of magnesium alloys have been focused to find the solutions for these drawbacks. However, up to now many researches have been concentrated on improving only one property which is the strength or the ignition-resistance. So, it should be needed study on the enhancement of multi-properties. According to our preliminary test, N<sub>2</sub> bubbling have improved mechanical properties of extruded Mg-3Al-1Zn-1Ca alloy. In this study, effects of Al or RE addition on mechanical and corrosion properties of extruded Mg-Al-Ca alloys with N<sub>2</sub> bubbling process were investigated. The test specimens were prepared by indirect extruder with billets of diameter of 40 mm. The extrusion temperature and ratio were 270 <sup>o</sup>C and 20, respectively.