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Measurement and Analysis of Liquid Density of NiCoAlMo Quarternary Alloys
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Measurement and Analysis of Liquid Density of NiCoAlMo Quarternary Alloys
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Supported by National Natural Science Foundation of China (50975301, 50942021, 11074314); Science and Technology Key Foundation of Chongqing (CSTC, 2009AC4045, 2010C6072); the Third?Stage?of “211” Innovative?Talent Training Project (S-09109); Sharing Fund of Large-Scale Equipment of Chongqing University (2010063072, 2010121556)

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    摘要:

    The density of liquid NiCoAlMo quaternary alloy with a fixed molar ratio of Ni:Co:Al (xNi:xCo:xAl≈73:12:15) which is close to the average value of the commercial Ni-based superalloys TMS75, INCO713, CM247LC and CMSX-4, and molybdenum concentration change from 0% to 10% (mass fraction) was measured by a modified sessile drop method. It is found that the density of the liquid NiCoAlMo quaternary alloy decreases with increasing of temperature, but increases with the increase of molybdenum concentration in the alloys. The molar volume of liquid NiCoAlMo quaternary alloy increases with the increase of temperature and molybdenum concentration, and shows a negative deviation from the ideal linear mixing. The liquid density of NiCoAlMo quaternary alloy calculated from the partial molar volumes of nickel, cobalt, aluminum and molybdenum in the corresponding Ni-bases binary alloy are in good agreement with the experimental results; it means that within the error tolerance range the density of liquid Ni-based multi-component alloys can be predicted from the partial volumes of elements in Ni-based binary alloys in liquid state

    Abstract:

    The density of liquid NiCoAlMo quaternary alloy with a fixed molar ratio of Ni:Co:Al (xNi:xCo:xAl≈73:12:15) which is close to the average value of the commercial Ni-based superalloys TMS75, INCO713, CM247LC and CMSX-4, and molybdenum concentration change from 0% to 10% (mass fraction) was measured by a modified sessile drop method. It is found that the density of the liquid NiCoAlMo quaternary alloy decreases with increasing of temperature, but increases with the increase of molybdenum concentration in the alloys. The molar volume of liquid NiCoAlMo quaternary alloy increases with the increase of temperature and molybdenum concentration, and shows a negative deviation from the ideal linear mixing. The liquid density of NiCoAlMo quaternary alloy calculated from the partial molar volumes of nickel, cobalt, aluminum and molybdenum in the corresponding Ni-bases binary alloy are in good agreement with the experimental results; it means that within the error tolerance range the density of liquid Ni-based multi-component alloys can be predicted from the partial volumes of elements in Ni-based binary alloys in liquid state

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Tang Xianzhi, Fang Liang, Xiao Feng, Tao Zainan. Measurement and Analysis of Liquid Density of NiCoAlMo Quarternary Alloys[J].稀有金屬材料與工程,2011,40(3):384~388.[Tang Xianzhi, Fang Liang, Xiao Feng, Tao Zainan. Measurement and Analysis of Liquid Density of NiCoAlMo Quarternary Alloys[J]. Rare Metal Materials and Engineering,2011,40(3):384~388.]
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  • 收稿日期:2010-03-03
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