J. Mater. Sci. Technol. ›› 2003, Vol. 19 ›› Issue (05): 388-390.

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Measurement and Analyses of Molten Ni-Co-Al Alloy Density

Feng XIAO, Liang FANG   

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2003-09-28 发布日期:2009-10-10

Measurement and Analyses of Molten Ni-Co-Al Alloy Density

Feng XIAO, Liang FANG   

  1. Department of Materials Science and Engineering, Chongqing Institute of Technology, Chongqing 400050, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2003-09-28 Published:2009-10-10
  • Contact: Feng XIAO

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Abstract: The density of molten Ni-Co-Al alloy was measured using a modified pycnometric method. It has been found that the density of the molten Ni-Co-Al alloy decreases with increasing temperature, Co concentration and the ratio of Co concentration to Ni concentration in the alloy. The coefficient of volume expansion of the molten Ni-Co-Al alloy decreases with increasing Co concentration and the ratio of Co concentration to Ni concentration. The temperature coefficient of density increases with increasing the Co concentration or the ratio of Co concentration to Ni concentration in the alloy. The density of the molten Ni-Co-Al alloy as functions of both temperature and Co concentration was expressed.

Key words: Density, Modified pycnometric method, Ni-Co-Al alloy