Accession Number : ADP004123

Title :   Nonlinear Ultrasonic Characterization of Oxygen Impurities in Titanium,

Corporate Author : UNITED TECHNOLOGIES RESEARCH CENTER EAST HARTFORD CT

Personal Author(s) : Ringermacher,H. I. ; Williams,R. S.

Report Date : JUL 1984

Pagination or Media Count : 13

Abstract : Titanium specimens containing oxygen impurities ranging from 0.1 to 0.5 percent by weight have been examined using nonlinear ultrasonic techniques. Second harmonic amplitude deviation from the expected square law behavior has been observed. This is consistent with theory relating dislocations and impurity content to ultrasonic and third harmonic generation in materials. The results of these tests are presented and directions for future work outlined. (Author)

Descriptors :   *Titanium alloys, *Oxygen, *Impurities, *Ultrasonics, Nonlinear systems, Harmonics, Correlation, Lithium niobates, Contamination, Embrittlement, Ductility, Hardness, Acoustic velocity, Acoustic attenuation

Distribution Statement : APPROVED FOR PUBLIC RELEASE