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首页> 外文期刊>Materials Science and Engineering >Improvement of creep and impact resistance of reduced activation ferritic-martensitic steel by the addition of Zr
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Improvement of creep and impact resistance of reduced activation ferritic-martensitic steel by the addition of Zr

机译：Zr的添加改善了还原活化铁素体-马氏体钢的抗蠕变性和冲击强度

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摘要

The influences of Zr addition on the mechanical properties of reduced-activation ferritic-martensitic steel were investigated. 9Cr-based steels with Zr contents varying 0-0.01 wt% were designed and produced by vacuum induction melting, and then formed into a plate by hot rolling, which was followed by normalizing and tempering. The addition of 0.005 wt% Zr improves the impact resistance with a slight sacrifice of yield strength for a given tempering condition. A short-term creep test shows that the addition of 0.01 wt% Zr significantly increases the time to rupture. Such improvement in impact and creep resistances by the addition of small amounts of Zr is attributed to the solution softening effect of Zr, which is associated with a reduced temperature-dependence of the yield strength. It is concluded that Zr has great potential as an alloying element in reduced-activation ferritic-martensitic steel for improving the mechanical properties.
机译：研究了添加Zr对还原活化铁素体-马氏体钢力学性能的影响。设计并通过真空感应熔炼制备Zr含量在0-0.01 wt％之间的9Cr基钢，然后通过热轧形成板状，然后进行正火和回火。在给定的回火条件下，添加0.005 wt％的Zr可以改善抗冲击性，并略微降低屈服强度。短期蠕变试验表明，添加0.01 wt％的Zr会显着增加断裂时间。通过添加少量的Zr来改善抗冲击和蠕变性能归因于Zr的溶液软化作用，这与屈服强度的温度依赖性降低相关。可以得出结论，Zr作为减活化铁素体-马氏体钢中的合金元素具有很大的潜力，可以改善机械性能。

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  • 来源
    《Materials Science and Engineering》 |2015年第1期|286-291|共6页
  • 作者

    Y.B. Chun; D.W. Lee; S. Cho; C.K. Rhee;

  • 作者单位

    Nuclear Materials Development Division, Korea Atomic Energy Research Institute, 989-111 Daedeok-daero, Yuseong-gu, Daejeon 305-353, Korea;

    Nuclear Fusion Engineering Division, Korea Atomic Energy Research Institute, 989-111 Daedeok-daero, Yuseong-gu, Daejeon 305-353, Korea;

    National Fusion Research Institute, 169-148 Gwahak-ro, Yuseong-gu, Daejeon 305-353, Korea;

    Nuclear Materials Development Division, Korea Atomic Energy Research Institute, 989-111 Daedeok-daero, Yuseong-gu, Daejeon 305-353, Korea;

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  • 正文语种 eng
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  • 关键词

    Ferritic-martensitic steel; Impact resistance; Creep resistance; Tensile properties;

    机译：铁素体-马氏体钢;耐冲击性耐蠕变性;拉伸性能;

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