Effect of ECAE on microstructures and mechanical properties of solution heat treated Mg-5(mass%) Sn alloy

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

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The microstructures and mechanical properties of the Mg-5(mass%) Sn alloy subjected to a solution heat treatment (SHT) were investigated by using equal channel angular extrusion (ECAE). The average grain size was significantly refined from 147μm (as-cast) to 16μm by ECAE four passes. Further, the fine Mg2Sn particles were uniformly distributed in the matrix by dynamic precipitation after ECAE four passes. The yield strength (YS), ultimate tensile strength (UTS) and elongations also showed notable improvements at room temperature and high temperatures (100 and 200°C) on account of the ECAE process. Further, the tensile strength and elongations were better than those of the ECAE without SHT alloy. Those results show that SHT is a useful way to enhance the effect of ECAE on the mechanical properties of Mg-5(mass%) Sn alloy.

Original languageEnglish
Pages (from-to)1423-1428
Number of pages6
JournalMaterials Transactions
Volume54
Issue number8
DOIs
Publication statusPublished - 2013 Sep 3

Fingerprint

heat of solution
Extrusion
mechanical properties
Mechanical properties
microstructure
Microstructure
heat treatment
Heat treatment
tensile strength
elongation
Elongation
Tensile strength
yield strength
Yield stress
Hot Temperature
casts
grain size
Temperature
room temperature
matrices

Keywords

  • Equal channel angular extrusion (ECAE)
  • Mg-5(mass%) Sn alloy
  • Solution heat treatment (SHT)

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Effect of ECAE on microstructures and mechanical properties of solution heat treated Mg-5(mass%) Sn alloy. / Tsai, Hao Jan; Kuo, Chin-Guo; Chao, Chuen Guang; Liu, Tzeng Feng.

In: Materials Transactions, Vol. 54, No. 8, 03.09.2013, p. 1423-1428.

Research output: Contribution to journalArticle

Tsai, Hao Jan ; Kuo, Chin-Guo ; Chao, Chuen Guang ; Liu, Tzeng Feng. / Effect of ECAE on microstructures and mechanical properties of solution heat treated Mg-5(mass%) Sn alloy. In: Materials Transactions. 2013 ; Vol. 54, No. 8. pp. 1423-1428.
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