Tensile and indentation creep behavior of Mg–5% Sn and Mg–5% Sn–2% Di alloys

The tensile properties and the indentation creep resistance of as-cast Mg–5 wt% Sn and Mg–5 wt% Sn–2 wt% Di alloys were studied in this paper. It has been shown that the tensile properties of Mg–5% Sn–2% Di alloy are comparative with that of AE42 alloy at room temperature and at 150 °C and 175 °C. T...

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Published in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2007-08, Vol.464 (1), p.124-128
Main Authors: Liu, Hongmei, Chen, Yungui, Tang, Yongbai, Wei, Shanghai, Niu, Gao
Format: Article
Language:English
Subjects:
Applied sciences
Creep
Didymium
Elasticity. Plasticity
Exact sciences and technology
Indentation creep
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
Mg–Sn alloy
Microstructure
Tensile
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Summary:The tensile properties and the indentation creep resistance of as-cast Mg–5 wt% Sn and Mg–5 wt% Sn–2 wt% Di alloys were studied in this paper. It has been shown that the tensile properties of Mg–5% Sn–2% Di alloy are comparative with that of AE42 alloy at room temperature and at 150 °C and 175 °C. The indentation creep experiments were conducted at 150 °C and 175 °C, suggesting that Mg–5% Sn–2% Di alloy has significantly better indentation creep resistance than AE42. The microstructure of Mg–5% Sn alloy is characterized by the presence of thermally stable Mg 2Sn particles mainly along grain boundaries, and addition of 2 wt% Di to this alloy results in the appearance of new Sn–Di phase, which further significantly enhance the strength and creep resistance.
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2007.02.061