Investigating microstructures and high temperature superplasticity behavior of Mg-5(mass%) Sn alloy by using equal channel angular extrusion

Hao Jan Tsai, Chin Guo Kuo, Chuen Guang Chao, Tzeng Feng Liu

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

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 α-Mg + Mg2Sn precipitates. After an ECAE process, the average grain size decreased from 147 μm to about 10 μm and the continuous eutectic α-Mg + Mg2Sn particles were broken down, and those particles distributed uniformly. The maximum elongation was 550 % at high temperature 350°C with strain rate of 1 × 10-3 s-1.

Original languageEnglish
Pages (from-to)379-383
Number of pages5
JournalJournal of Marine Science and Technology (Taiwan)
Volume24
Issue number3
DOIs
Publication statusPublished - 2016 Jan 1

Keywords

  • Equal channel angular extrusion (ECAE)
  • High temperature plasticity behaviour
  • Mg-5(mass%) Sn alloy
  • MgSn particles

ASJC Scopus subject areas

  • Oceanography
  • Ocean Engineering
  • Mechanics of Materials
  • Mechanical Engineering

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