| Title |
Microstructure and Tensile Properties of High Strength Weldable P / M Al - Mg - Cr Extrudates |
| Authors |
강영곤(Young Kon Kang) ; 김득연(Deuk Yeon Kim) ; 조성석(Seong Seock Cho) |
| Abstract |
A study has been performed on rapidly solidified Al-Mg-Cr alloy as a candidate for engineering applications requiring high strength and weldability. The objective of this work was to investigate the development of microstructure during extrusion snd tensile properties. This work has been achieved by employing a combination of X-ray diffraction, transmission electron microscopy, differential scanning calorimeter, and instron universal testing machine. The P/M Al-Mg-Cr alloy has a much finer grain and precipitates size than does I/M 5083. Through a combination of DSC and X-ray analysis obtained from Al-Mg-Cr powder and X-ray analysis from Al-Mg-Cr extrudate, the precipitate phase of being contributed to tensile strength of the extrudate is Cr₂Mg₃Al_(18). |