Thermophysical properties of the Ni-based alloy Nimonic 80A up to 2400 K, II

Abstract

Numerical simulation of fluid flow, heat transfer, solidification or thermal induced stresses have gained a tremendous significance in steel working industry branches. With the advent of adequate computing power, full three-dimensional calculation of the determining physical equations have become possible. A major drawback of these simulation techniques is the lack of accurate thermophysical properties. By the means of a fast pulse heating technique thermophysical data for the solid and liquid material required for the simulations can be measured. Important input parameters for the heat transfer equation are heat capacity, heat of fusion, density and thermal conductivity. Since direct measurements of thermal conductivity of alloys in the liquid state are almost impossible, its estimation from the electrical conductivity using the Wiedemann–Franz law is very useful.