Abstract

We present the results of high-precision investigations of the elasticity characteristics of MChVP commercially pure polycrystalline molybdenum within the temperature range 400–1400 K. The measurements were carried out by using the ultrasonic echo-pulse method. The frequency of the sounding signal was equal to 10 MHz. We establish correlations between the moduli of elasticity in tension and in shear and study the distinctive features of the break in the dependences of the elasticity characteristics of molybdenum near T=900 K. We propose to consider this temperature as one of the physical constants of molybdenum.

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