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| Effects of Y on Elevated Temperature Mechanical Properties of Mg–8Al–2Sr Alloy |
| FAN Jinping1,2,3, XU Bingshe1,2,3, WANG Shebin1,2,3, LIU Lu3 |
1.Key laboratory of interface science and engineering in advanced materials,ministry of education, Taiyuan 030024
2.Shanxi research center of advanced materials science and technology, Taiyuan 030024
3.Taiyuan university of technology,college of material science and technology, Taiyuan 030024 |
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Cite this article:
FAN Jinping XU Bingshe WANG Shebin LIU Lu. Effects of Y on Elevated Temperature Mechanical Properties of Mg–8Al–2Sr Alloy. Chin J Mater Res, 2012, 26(2): 132-137.
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Abstract The effects of Y on mechanical properties of Mg–8Al–2Sr–xY alloys at elevated–temperature were investigated by optical microscopy (OM), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS), high resolution transmission electron microscopy (HRTEM), X–ray diffraction (XRD) and tensile testing. Results show that adequate Y addition can refine the grains of Mg–8Al–2Sr alloy distinctly, change phase composing, restraine β–Mg17Al12 effectively and heat–resistant Al2Y and Al2Sr came forth as a result and improve the elevated temperature mechanical properties. But superabundant Y addition results in uneven microstructure and composition and the decrease of the mechanical properties.
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Received: 12 August 2011
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| Fund: Supported by National Natural Science Foundation of China No.2010jc13 and Returned Overseas Graduates Scientific Research Projects of Shanxi Province No.2008–39. |
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