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首页> 外文期刊>Journal of Materials Research >Effects of boron and zirconium additions on the fluidity, microstructure and mechanical properties of IN718C superalloy
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Effects of boron and zirconium additions on the fluidity, microstructure and mechanical properties of IN718C superalloy

机译：硼和锆的添加对IN718C高温合金流动性，微观结构和力学性能的影响

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摘要

The effects of boron and zirconium contents from 0 to 0.049 wt% on the casting fluidity, as-cast microstructure and mechanical properties of IN718C superalloy are systematically investigated. The results show that as the B or Zr content increases, the fluidity firstly increases and then decreases. The optimum fluidity is obtained at the pouring temperature of 1470 ℃ when the content of B is 0.0059 wt% or Zr is 0.042 wt%, respectively. The addition of Zr can lead to the formation of blocky laves phase, but B has no influence on microstructure morphology. Furthermore, the addition of B or Zr can effectively improve the tensile and stress life properties as well as casting fluidity of IN718C superalloy. As compared with IN718C master alloys, the tensile strength can increase 6.2-8.6% and stress life can be improved by 1.3 times when B content is 0.0059 wt%. In addition, when the alloy contains 0.042 wt% Zr, the tensile strength can increase 5.6-7% and stress life can increase 1.076 times than that of the master alloy.
机译：系统研究了硼和锆含量从0到0.049 wt％对铸造流动性，铸态组织和IN718C高温合金力学性能的影响。结果表明，随着B或Zr含量的增加，流动性先增大后减小。当B的含量为0.0059 wt％或Zr为0.042 wt％时，在1470℃的浇铸温度下可获得最佳流动性。 Zr的添加可以导致块状Laves相的形成，但是B对微观结构的形态没有影响。此外，添加B或Zr可以有效改善IN718C高温合金的拉伸和应力寿命性能以及铸造流动性。与IN718C中间合金相比，当B含量为0.0059 wt％时，抗拉强度可提高6.2-8.6％，应力寿命可提高1.3倍。另外，当合金中含有0.042wt％的Zr时，抗拉强度可以增加5.6-7％，并且应力寿命可以比中间合金增加1.076倍。

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  • 来源
    《Journal of Materials Research》 |2016年第22期|3557-3566|共10页
  • 作者

    Ziqi Jie; Jun Zhang; Taiwen Huang; Haijun Su; Yanbin Zhang; Lin Liu; Hengzhi Fu;

  • 作者单位

    State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China;

    State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China;

    State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China;

    State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China;

    State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China;

    State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China;

    State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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