Young's Modulus and Damping Coefficients of Metals at High Temperatures

Abstract

The need for research of the elastic properties of metals at high temperatures has been pointed out in recent years, relating to the development of high temperature operating machineries or apparatuses. This paper describes one method of dynamical determination of elasticity and damping at high temperatures, by which the variation of Young's modulus and damping coefficients versus temperature can be determined quantitatively, at an extremely low stress, under 20 cps, and up to 1000°C. The variation of these values is not always monotone, but has an abrupt maximum or minimum at some temperatures. The characteristics of each material will be reported in the near future.