SYMPOSIA PAPER Published: 01 January 1990

An Evaluation of Three Techniques for Determining the Young's Modulus of Mechanically Alloyed Materials


Two dynamic and one static technique for determining Young's modulus of mechanically alloyed (MA) materials were evaluated for their suitability for quality control testing and as a tool for development of new MA materials. The dynamic techniques included the commonly used continuously excited free - free beam technique tested in both longitudinal and flexural modes, and the relatively new impulse excitation technique tested in the flexural mode. The dynamic techniques showed a minor difference between the impulse and continuous techniques but still yielded results agreeing within ± 1%. The static technique yielded results differing from -5% to + 7% of the dynamic results. The impulse excitation method is particularly well suited for quality control work, while the continuous method is best for elastic behavior characterization. It is conjectured that the static tensile method accuracy may be adversely affected if the tested material is non-isotropic.

Author Information

Smith, JS
Wyrick, MD
Poole, JM
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Developed by Committee: E28
Pages: 195–207
DOI: 10.1520/STP24625S
ISBN-EB: 978-0-8031-5111-6
ISBN-13: 978-0-8031-1291-9