Journal ArticleDOI
The physical properties of alloys in the liquid and ``mushy'' states
Reads0
Chats0
TLDR
In this paper, the physical properties of alloys at high temperatures are analyzed for casting, welding, secondary refining, dip melting, spray forming, and metal powder production, and the results obtained for the properties of commercial alloys for the liquid and "mushy" states are discussed.Abstract:
Data on the physical properties of alloys at high temperatures are urgently needed for the mathematical modeling of high-temperature processes such as casting, welding, secondary refining, dip melting, spray forming, and metal powder production. Data are required for those properties which are involved in heat and fluid flow in high-temperature processes. Levitated drop methods have been adopted to measure the surface tensions, densities, and enthalpies of commercial alloys, and rapid, transient methods have been developed to measure thermal conductivities to avoid the problem of convection. The results obtained for the properties of commercial alloys for the liquid and “mushy” states are discussed.read more
Citations
More filters
Journal ArticleDOI
Measurement and estimation of thermophysical properties of nickel based superalloys
TL;DR: In this paper, the properties of Ni-based superalloys have been measured and relationships between properties and the γ′ phase content (which can be represented by mass% Al in the alloy) have been identified.
Journal ArticleDOI
Thermal conductivities of molten metals: Part 1 Pure metals
TL;DR: In this article, the Wiedemann-Franz-Lorenz equation relating electrical and thermal conductivities has been assessed for most pure pure metals at their melting point.
Journal ArticleDOI
Thermophysical properties of solid and liquidInconel 718 Alloy
TL;DR: In this paper, a fast resistive pulse heating technique up into the liquid phase was used to obtain data on thermal conductivity and thermal diffusivity, compared with results of quasistatic measurements of specific heat obtained by differential scanning calorimetry and expansion measurements by dilatometry.
Journal ArticleDOI
Correlation between forming quality and spatter dynamics in laser powder bed fusion
Jie Yin,Dengzhi Wang,Liangliang Yang,Huiliang Wei,Peng Dong,Linda Ke,Guoqing Wang,Haihong Zhu,Xiaoyan Zeng +8 more
TL;DR: In this article, Li et al. investigated the correlation between the ex situ melt track properties and the in situ high-speed, high-resolution characterization of laser powder bed fusion (LPBF) components.
Journal ArticleDOI
Calculation of Thermophysical Properties of Ni-based Superalloys
TL;DR: In this paper, the authors derived equations and procedures to calculate the following properties of Ni-based superalloys from chemical composition of the alloy: the γ′ phase content, liquidus and solidus temperatures, density and thermal expansion coefficient, heat capacity and enthalpy, electrical resistivity, thermal diffusivity and conductivity, viscosity, surface tension and contact angle.
References
More filters
Book
The physical properties of liquid metals
Roderick I. L. Guthrie,孝道 飯田 +1 more
TL;DR: A comprehensive survey of theories, empirical relations and experimental data on the physical properties of liquid metals can be found in this paper, where the authors give a comprehensive overview of liquid metal properties.
Journal ArticleDOI
Oscillations of magnetically levitated aspherical droplets
D. L. Cummings,D. A. Blackburn +1 more
TL;DR: In this paper, the authors investigated how the vibrations of a non-rotating liquid droplet are affected by the asphericity and additional restoring forces that the levitating field introduces and showed that the expected single frequency of the fundamental mode is split into either three, when there is an axis of rotational symmetry, or five unequally spaced bands.
Journal ArticleDOI
Effect of temperature and composition on surface tension in Fe-Ni-Cr alloys containing sulfur
M. J. McNallan,Tarasankar Debroy +1 more
Journal ArticleDOI
Measurement of Electrical Resistivity of Molten Iron, Cobalt, and Nickel by Improved Four-Probe Method
Journal ArticleDOI
An instrument for the measurement of the thermal conductivity of liquids at high temperatures
TL;DR: In this paper, an instrument based on the line source method has been developed for the measurement of the thermal conductivities of liquids at high temperatures, and the results obtained for n-heptane and para-xylene were within + or 2.5% of the accepted values.