Thermophysical properties of Ni-5%Sn alloy melt

Dai, Fu–Ping; Cao, Chongde; Wei, B.

doi:10.1007/s11433-006-0236-7

Cited by 8 publications

(3 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The quantitative investigation of the rapid solidification under high undercooling requires enough accurate thermodynamic data of undercooled melts, whereas they are often lacking in handbook [1] . To date, the experimental measurements of thermodynamic properties of undercooled metal are performed by various levitation technologies such as electromagnetic levitation and acoustic levitation [2,3] . These containerless processing methods can effectively avoid the heterogeneous nucleation induced by the container wall and are in favor of large undercooling.…”

mentioning

confidence: 99%

A molecular dynamics study on melting point and specific heat of Ni3Al alloy

et al. 2007

View full text Add to dashboard Cite

Using the Embedding Atom Method (EAM) for highly undercooled Ni 3 Al alloy, the melting point and the specific heat were studied by a molecular dynamics simulation. The simulation of melting point was carried out by means of the sandwich method and the NVE ensemble method, and the results show a good agreement, whereas are larger than the experimental value of 1663 K. This difference is attributed to the influence of surface melting on experimental results, which causes the smaller measurements compared with the thermodynamic melting point. The simulated specific heat of Ni 3 Al alloy weakly and linearly increases with the increase of undercooling in the temperature range from 800 K to 2000 K.Ni 3 Al alloy, undercooled, melting point, specific heatThe rapid solidification process with low cooling rate can be obtained by using high undercooling conditions, which overcomes the limit of heat transfer during the quenching and is an effective manner to carry out the rapid solidification of bulk melts. The quantitative investigation of the rapid solidification under high undercooling requires enough accurate thermodynamic data of undercooled melts, whereas they are often lacking in handbook [1] . To date, the experimental measurements of thermodynamic properties of undercooled metal are performed by various levitation technologies such as electromagnetic levitation and acoustic levitation [2,3] . These containerless processing methods can effectively avoid the heterogeneous nucleation induced by the container wall and are in favor of large undercooling. Due to the high cost of experimental measurements, however, these studies focus on a few metal and alloy systems, and correspondingly the thermodynamic data are limited. The molecular dynamics simulation can easily produce the underooling state of metal and a potential method to study the thermodynamic properties of metastable metals, and permits to further detect the intrinsic correlation between the thermodynamic property and the microstructure at a molecular level [4,5] . As a basic thermodynamic parameter, the melting point is beneficial for revealing the phase choice during the solidification and determining the undercooling. The specific heat plays an im-

show abstract

mentioning

confidence: 99%

A molecular dynamics study on melting point and specific heat of Ni3Al alloy

et al. 2007

View full text Add to dashboard Cite

show abstract

“…The second one is dynamic surface tension measurements so that many of these are considered as the modifications of the static models. One can generally mention some experimental methods such as ring [1,12]; oscillating jet [13][14][15][16][17]; DC method, as described in detail elsewhere [18][19][20]; oscillating droplet method [21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40]; draining crucible method [19,20,41,42]; drop or weight method (it can be seen that the drop volume or weight method among the conventional methods of surface tension measurement has proven to be reliable and easy to handle) [43][44][45][46][47]; pulsating bubble [48]; pendant drop (it may be said that the use of the pendant drop method to measure interfacial tension between molten polymers has gotten a lot of attention) [11,[49][50][51]…”

Section: Introductionmentioning

confidence: 99%

Surface Tension and Surface Tension Assessment of Ag-Au-Cu Ternary and Sub-Binary Alloy Systems

Arslan¹,

Dogan²

2019

Hysteresis of Composites

View full text Add to dashboard Cite

A brief review of measurement techniques and theoretical studies on the surface tension alloy and mixture has been presented in the present study. It is clear that the experimental determination of thermodynamic and thermophysical properties of both solid and especially liquid alloys at high temperature cases is frequently difficult technologically. In addition to this, a lack of experimental data concerning thermophysical properties of Ag-Au, Au-Cu, and Ag-Cu sub-binary systems is obvious. The theoretical thermophysical data of the Ag-Au-Cu ternary alloy systems are very scarce in the literature. Thus, the surface tensions of the alloys just mentioned above for cross sections z = x Ag /x Au = 1/3, 1/1, 3/1, 2/5, and 5/2, respectively, and their sub-binary systems are much simply calculated from the surface tensions of the Ag-Au, Au-Cu, and Ag-Cu sub-binary systems by using geometric models, such as Muggianu, Kohler, Toop, and GSM (Chou's general solution model) and Butler's equation. The predicted results in the present study show rather an agreement with the experimental results of the alloys. Therefore, it is inferred that the obtained surface tension curves for the Ag-Au-Cu ternary alloy at 1381 K are reasonable with especially those calculated from the Toop model.

show abstract

“…One is an indirect way which analyzes sensitive physical properties (such as resistivity [2] , viscosity [3] , magnetic susceptibility [4] , surface tension [5] ) to study the change of the structure in melt. The other is a direct way, viz.…”

Section: Introductionmentioning

confidence: 99%

The structural change of Cu-Sn melt

et al. 2007

View full text Add to dashboard Cite

With the high-temperature viscometer and magnetic susceptibility measurement device designed by our group, the viscosity and the magnetic susceptibility of the Cu 65 Sn 35 melt were measured during the cooling process. An anomalous change can be found in the curves of viscosity and magnetic susceptibility at a certain temperature. The structure of the melt was studied by the high-temperature X-ray diffractometer. The anomalous change also can be found in the pair distribution function, correlation radius, and coordination number at the approximate temperature, which shows the microstructural change of the Cu 65 Sn 35 melt. From the results, it was confirmed that the Cu 6 Sn 5 compound occurs in the melt, which leads to the structural change of the melt.

show abstract

Thermophysical properties of Ni-5%Sn alloy melt

Cited by 8 publications

References 16 publications

A molecular dynamics study on melting point and specific heat of Ni3Al alloy

A molecular dynamics study on melting point and specific heat of Ni3Al alloy

Surface Tension and Surface Tension Assessment of Ag-Au-Cu Ternary and Sub-Binary Alloy Systems

The structural change of Cu-Sn melt

Contact Info

Product

Resources

About