Dynamic Young's Modulus in Metallic Materials: Interlaboratory Testing Program

Authors: A. Wolfenden, M.R. Harmouche, G.V. Blessing, Y.T. Chen, P. Terranova, V. Dayal, V.K. Kinra, J.W. Lemmens, R.R. Philips, J.S. Smith, P. Mahmoodi and R.J. Wann

Abstract

The results of a round-robin testing study are presented for measurements of dynamic Young’s modulus in two nickel-based alloys. The Interlaboratory Testing Program involved six types of apparatus, six different organisations, and specimens from a well-ducumented source. All the techniques yielded values of dynamic Young’s modulus that agreed within 1.6% of each other. For Inconel alloy 600 the dynamic modulus was 213.5 Gpa with a standard deviation of 3.6 Gpa; For Incoloy alloy 907 the corresponding values were 158.6 and 2.2 Gpa, respectively. No significant effect of frequency over the range 780 Hz to 15MHz was found.