| T6处理对Mg-10Gd-3Y-O.6Zr合金组织及拉伸性能的影响 |
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| 引用本文： | 林丹,王磊,孟凡强,崔建忠,乐启炽.T6处理对Mg-10Gd-3Y-O.6Zr合金组织及拉伸性能的影响[J].材料与冶金学报,2010,9(3). |
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| 作者姓名： | 林丹 王磊 孟凡强 崔建忠 乐启炽 |
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| 作者单位： | 东北大学;东北大学;东北大学;东北大学;东北大学 |
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| 摘 要： |
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Effects of T6 treatment on microstructure and tensile properties of Mg - 10Gd -3Y -0.6Zr alloy |
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| LIN Dan,WANG Lei,MENG Fan-qiang,CUI Jian-zhong,LE Qi-chi.Effects of T6 treatment on microstructure and tensile properties of Mg - 10Gd -3Y -0.6Zr alloy[J].Journal of Materials and Metallurgy,2010,9(3). |
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| Authors: | LIN Dan WANG Lei MENG Fan-qiang CUI Jian-zhong LE Qi-chi |
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| Abstract: | The effects of solution and ageing treatment (T6) on microstructure and tensile properties of as - extruded Mg- 10Gd-3Y-0.6Zr (mass fraction. % ) alloy were investigated. The results show that after T6 treatment, the diameter of grain increases to 20 μm. As the second phases dissolve into the matrix, the smaller and denser β phases precipitate inside the grains. After T6 -treatment, both yield strength (TYS) and ultimate tensile strength (UTS) are increased. Comparing with that in only ageing condition (T5), the UTS and TYS increased from 365 MPa, 285 MPa to 400 MPa, 310 MPa, respectively, but the elongation decreased from 7.0% to 3.5%. It has been found that the effects of precipitates on the strength are stronger than that of the growth of grain size. |
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| Keywords: | Mg-Gd-Y-Zr alloy solution and aging treatment microstructure tensile properties precipitation strengthening |
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