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Park, Sung Soo
Metal Alloy Design (MADe) Lab
Research Interests
  • Metals and alloys, materials properties (mechanical/physical/electrochemical/functional), biomedical implants, metals corrosion

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Development of creep resistant die cast Mg-Sn-Al-Si alloy

Cited 107 times inthomson ciCited 109 times inthomson ci
Title
Development of creep resistant die cast Mg-Sn-Al-Si alloy
Author
Park, Sung SooKang, DHKim, NJ
Keywords
Creep resistance; Dispersoid; Load-relaxation test; Mg-Sn alloy
Issue Date
200512
Publisher
ELSEVIER SCIENCE SA
Citation
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, v.413, no., pp.555 - 560
Abstract
A study has been made on the tensile properties and high temperature properties of die cast Mg-Sn-Al-Si (TAS831) alloy. The microstructure of TAS831 alloy is characterized by the presence of thermally stable Mg2Sn particles within matrix and along grain boundaries. It also contains a small volume fraction of thermally stable Mg2Si particles. It has been shown that TAS831 alloy has better combinations of tensile properties at room and elevated temperatures than die cast AZ91 alloy. Creep properties of TAS831 alloy are also superior to those of AZ91 alloy. Analyses of creep behavior and load-relaxation behavior at elevated temperatures in the context of internal variable theory indicate that the presence of thermally stable dispersoids in TAS831 alloy increases the resistance to dislocation movement, thereby improving creep properties over those of AZ91 alloy.
URI
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DOI
http://dx.doi.org/10.1016/j.msea.2005.09.022
ISSN
0921-5093
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