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    姚瑶, 周灿栋, 史弼, 杨晓萍, 单爱党, 宋洪伟. 超级双相不锈钢中σ相力学性能的纳米压痕表征[J]. 机械工程材料, 2011, 35(7): 1-3.
    引用本文: 姚瑶, 周灿栋, 史弼, 杨晓萍, 单爱党, 宋洪伟. 超级双相不锈钢中σ相力学性能的纳米压痕表征[J]. 机械工程材料, 2011, 35(7): 1-3.
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    YAO Yao, ZHOU Can-dong, SHI Bi, YANG Xiao-ping, SHAN Ai-dang, SONG Hong-wei. Nanoindentation Characterization of Mechanical Properties of σ Phase in Super Duplex Stainless Steel[J]. Materials and Mechanical Engineering, 2011, 35(7): 1-3.
    Citation: YAO Yao, ZHOU Can-dong, SHI Bi, YANG Xiao-ping, SHAN Ai-dang, SONG Hong-wei. Nanoindentation Characterization of Mechanical Properties of σ Phase in Super Duplex Stainless Steel[J]. Materials and Mechanical Engineering, 2011, 35(7): 1-3.
    shu

    超级双相不锈钢中σ相力学性能的纳米压痕表征

    Nanoindentation Characterization of Mechanical Properties of σ Phase in Super Duplex Stainless Steel

      摘要
    • 摘要: 为了预测金属间化合物σ相的析出对00Cr25Ni7Mo4N超级双相不锈钢力学性能的影响, 采用纳米压痕技术对加热缓冷后该钢的σ相进行了表征, 并对其显微组织进行了观察。结果表明: 钢中σ相的体积分数为36.7%, 其纳米压痕硬度范围为14.0～17.1 GPa, 平均值为15.7 GPa, 弹性模量范围为262～380 GPa, 平均值为317 GPa; 测试结果基本排除了基体效应的影响。

       

      Abstract: To predict the effect of σ phase precipitation on mechanical properties of 00Cr25Ni7Mo4N super duplex stainless steel, the intermetallics σ phase was characterized by nanoindentation after slow cooling, and the microstructure was observed. The results show that the volume fraction of σ phase in the steel was 36.7%, and the nanoindentation hardness of the σ phase was in the range of 14.0-17.1 GPa with a mean value of 15.7 GPa; the modulus of elasticity was in the range of 262-380 GPa with a mean value of 317 GPa. In addition, the substrate-effect on results could be removed.

       

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