In this study, we investigated the microstructures and high temperature plasticity behaviour of an Mg-5(mass%) Sn alloy after equal channel angular extrusion (ECAE). These results show that the grain boundary of the as-cast Mg-5(mass%) Sn alloy contained continuous eutectic ɑ-Mg+Mg2Sn precipitates. After an ECAE process, the average grain size decreased from 147 μm to about 10 μm and the continuous eutectic ɑ-Mg+ Mg2Sn particles were broken down, and those particles distributed uniformly. The maximum elongation was 550 % at high temperature 350C with strain rate of 1x10-3 s-1.
Tsai, Hao-Jan; Kuo, Chin-Guo; Chao, Chuen-Guang; and Liu, Tzeng-Feng
"INVESTIGATING MICROSTRUCTURES AND HIGH TEMPERATURE SUPERPLASTICITY BEHAVIOR OF MG-5(MASS%) SN ALLOY BY USING EQUAL CHANNEL ANGULAR EXTRUSION,"
Journal of Marine Science and Technology: Vol. 24:
3, Article 1.
Available at: https://jmstt.ntou.edu.tw/journal/vol24/iss3/1