Measurement of the Density of Ni-Cr Alloy by a Modified Pycnometric Method

Mukai, Kusuhiro; Xiao, Feng; Nogi, Kiyoshi; Li, Zushu

doi:10.2320/matertrans.45.2357

Cited by 18 publications

(31 citation statements)

References 10 publications

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“…The experimental procedures used have been described in detail in previous papers. 1,2) The experimental samples of Ni-base binary alloys are composed of Ni (80 mass%)-X (20 mass%, X=Co, W, Ta, Al) master alloy discs cut from high purity Ni (80 mass%)-X (20 mass%) master alloy ingot rods, and the insufficient nickel mass is replenished by nickel disc cut from high purity nickel rod. The chemical compositions of the alloy elements in the alloys after experiments were analysed by radio frequency inductively coupled plasma (I.C.P.)…”

Section: Methodsmentioning

confidence: 99%

“…The principles of the two methods and their advantages have been detailed in previous papers. 1,2) The densities of liquid nickel and Ni-Cr alloys in liquid and mushy states have been measured precisely by both methods. These two methods (MSDM and MPM) have the following advantages over the traditional sessile drop method and pycnometric method, .…”

Section: Introductionmentioning

confidence: 99%

“…1,2) Furthermore, there are very few reports on the measurement of the density of Ni-base alloys in relation to the effects of composition and temperature. Eremenko and Naidich 3) measured the density of Ni-Cr alloys in liquid and ''mushy'' (ie solid+liquid) states for Cr concentrations between 9 and 57 mass% using the large drop method.…”

Section: Introductionmentioning

confidence: 99%

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Measurement of the Density of Binary Ni-X (X=Co, W, Ta, Al) Alloys

Mukai

Fang

et al. 2004

Mater. Trans.

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The modified sessile drop method (MSDM) and modified pycnometric method (MPM) have been employed to measure the densities of liquid Ni-Co, Ni-W, Ni-Ta and Ni-Al alloys precisely. In the case of Ni-Al alloys measurements were also made in the ''mushy'' state where both solid and liquid coexist. There was a good agreement between the values measured by the two methods. The density of liquid Ni-base binary alloys from the melting points to 1833 K and that of Ni-Al alloys in the mushy state decrease linearly with increasing temperature. The temperature coefficient of the density of Ni-base binary alloys measured in this work was regressed as a quadratic function of the concentration of alloy element. The measured density of Ni-base binary alloys at any required temperature can also be expressed as a quadratic function of the concentration of alloy element. The recommended equations for the density of Ni-base binary alloys were obtained as a function of composition and temperature by regressing the density values measured by both MSDM and MPM. The calculated values from the recommended density equations show good agreement with those obtained with both methods.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Measurement of the Density of Binary Ni-X (X=Co, W, Ta, Al) Alloys

Mukai

Fang

et al. 2004

Mater. Trans.

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“…[5][6][7] In this paper, both MSDM and MPM were employed to measure the densities of liquid ternary model alloys (Ni-CoAl, molar fraction x Ni :x Co % 86:14, Al mass% = 0$11), liquid quaternary model alloys (Ni-Co-Al-Cr, Ni-Co-Al-Mo and Ni-Cr-Al-Mo), and four commercial Ni-based superalloys in liquid and mushy states. The chemical compositions of these model alloys were similar to those of commercial Nibased superalloys.…”

Section: -7)mentioning

confidence: 99%

“…Furthermore, there are very few reports on the measurement of the density of Ni-based alloys in relation to the effects of composition and temperature. [1][2][3][4][5][6][7] There are no reports on the measurement of the densities of liquid Ni-based multi-component model alloys such as ternary and quaternary alloys.…”

Section: Introductionmentioning

confidence: 99%

Measurement of the Densities of Nickel-Based Ternary, Quaternary and Commercial Alloys

Mukai

Fang

2004

Mater. Trans.

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The modified sessile drop method (MSDM) and the modified pycnometric method (MPM) have been employed to measure precisely the densities of liquid nickel-based ternary (Ni-Co-Al) and quaternary (Ni-Co-Al-Cr, Ni-Co-Al-Mo, Ni-Cr-Al-Mo) alloys and four commercial superalloys in liquid and mushy states. There was a good agreement between the values measured by the two methods. The measured densities of liquid model alloys and commercial superalloys in liquid and mushy states decreased linearly with increasing temperature for the experimental temperature range. The temperature coefficient of the density of liquid ternary Ni-Co-Al alloys measured in this work can be represented as a quadratic function of the aluminium concentration in the alloys. The density of liquid Ni-Co-Al alloys can be expressed as a function of both temperature and aluminium concentration in the alloys. The recommended equations for the densities of liquid nickel-based ternary and quaternary alloys and four commercial superalloys in liquid and mushy states were obtained by analysing density values measured by both MSDM and MPM. The calculated values from the recommended density equations show good agreement with those measured by both MSDM and MPM.

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