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Effect of rhenium on solidification and segregation of nickel-based superalloy

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Abstract

The solidified process of the rhenium-containing nickel-based superalloys was investigated in this paper. The solidified experiments of samples were carried out in a silicon carbon tube furnace with following water quenching. Microstructure of samples and subsequent compositional analysis of solidified ones were determined by an optical microscope (OM) and electronic probe micro analysis (EPMA), respectively. The results show the initial temperature, final temperature and the temperature interval of solidification keep constant with increasing content of Re in alloys under the test conditions, demonstrating the similar solidification sequences. With increasing Re element in alloy, the segregation coefficient of Al, Cr, Co, Mo, and Ta slightly varies, but the segregation coefficient of W obviously decreases.

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Authors and Affiliations

  1. Superalloy Division, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China

    Enze Liu & Zhi Zheng

  2. School of Environmental and Chemical Engineering, Shenyang Ligong University, Shenyang, 110168, China

    Xiurong Guan

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  1. Enze Liu
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  2. Xiurong Guan
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  3. Zhi Zheng
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Correspondence to Enze Liu.

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Liu, E., Guan, X. & Zheng, Z. Effect of rhenium on solidification and segregation of nickel-based superalloy. Rare Metals 30 (Suppl 1), 320–322 (2011). https://doi.org/10.1007/s12598-011-0294-5

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  • DOI: https://doi.org/10.1007/s12598-011-0294-5

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