標題: Effect of ECAE on Microstructures and Mechanical Properties of Solution Heat Treated Mg-5(mass%) Sn Alloy
作者: Tsai, Hao-Jan
Kuo, Chin-Guo
Chao, Chuen-Guang
Liu, Tzeng-Feng
材料科學與工程學系
Department of Materials Science and Engineering
關鍵字: Mg-5(mass%) Sn alloy;solution heat treatment (SHT);equal channel angular extrusion (ECAE)
公開日期: 1-Aug-2013
摘要: 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 147 mu m (as-cast) to 16 mu m 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 degrees 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.
URI: http://dx.doi.org/10.2320/matertrans.M2013088
http://hdl.handle.net/11536/22799
ISSN: 1345-9678
DOI: 10.2320/matertrans.M2013088
期刊: MATERIALS TRANSACTIONS
Volume: 54
Issue: 8
起始頁: 1423
結束頁: 1428
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