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《Journal of Hunan Institute of Engineering(Natural Science Edition)》 2009-01
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Study on Microstructure and Mechanical Properties of Mg-5.0Y-3.0Nd-0.5Zr Alloys as Casting

WU An-ru;QIN Bo(College of Mech.Eng.,Hunan Institute of Engineering,Xiangtan 411101,China)  
Mg-5.0Y-3.0Nd-0.5Zr is equally annealed at different temperatures.Tensile mechanical properties of the alloy are tested at room temperature.Microstructure observations under different states are performed by optical and electron microscopes and X-ray diffraction analytic methods.It is shown that annealing at different temperatures affects the microstructure mechanical properties of the alloy.The results reveal that Mg41Nd5 and Mg24Y mainly distribute in the grain boundary of as-cast microstructure and the effect of annealing at 500℃ is the best because the fracturing strength and the shape of the alloy are improved by 18.6% and 3.5% respectively.
【Fund】: 湖南省教育厅科研资助项目(08A010)
【CateGory Index】: TG136.1
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