Hurley, D.
, Balzar, D.
and Purtscher, P.
(1999),
Nonlinear Ultrasonic Parameter in Precipitate-Hardened Steels, Nondestructive Characterization of Materials
(Accessed October 15, 2025)
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Nonlinear Ultrasonic Parameter in Precipitate-Hardened Steels
Published
Author(s)
, ,
Abstract
We have investigated several specimens of ASTM A710 steel containing copper-rich precipates with variations in the final aging treatment. X-ray diffraction line-broadening and small-angle neutron-scattering experiments revealed the existence of the precipitates and associated coherency strain. We determined the nonlinear ultrasonic parameter Β for each specimen by harmonic- generation experiments and measured the ultrasonic longitudinal velocity ŅL and attenuation αL. Although ŅL and αL showed no consistent trends, Β increased with increasing strain. This correlation is compared to a microstructural model for harmonic generation that includes a contribution from precipitate-pinned dislocations.Conference Dates
November 29-30, 1999
Conference Title
Nondestructive Characterization of Materials
Pub Type
Conferences
Keywords
elastic properties, nonlinear acoustics, precipitation hardening, ultrasonics
Citation
Issues
If you have any questions about this publication or are having problems accessing it, please contact [email protected].
Created November 1, 1999, Updated February 17, 2017