Published October 31, 1980 | Version v1
Report Restricted

Acoustic emission under biaxial stresses in unflawed 21-6-9 and 304 stainless steel

Description

Acoustic emission (AE) testing has been carried out with uniaxial and biaxial (2:1 stress ratio) stressing of smooth samples of 21-6-9 and 304 stainless steel (SS). Uniaxial testing was done with simple tensile and compression samples as well as with the special biaxial specimens. Biaxial tensile stressing was accomplished with a specially designed specimen, which had been used previously to characterize AE in 7075 aluminum under biaxial stressing. Results were obtained for air-melt and for vacuum-melt samples of 21-6-9 SS. The air-melt samples contain considerably more inclusion particles than the vacuum-melt samples. For the 304 SS, as received material was examined. To allow AE correlations with microstructure, extensive characterization of the 21-6-9 microstructure was carried out. Significant differences in AE occur in biaxially stressed specimens as compared to uniaxially stressed samples. 15 figures, 3 tables

Availability note (English)

MF available from INIS under the Report Number; Available from NTIS., PC A03/MF A01.

Files

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Additional details

Publishing Information

Imprint Pagination
36 p.
Report number
UCRL--84358

Conference

Title
Elastic waves and microstructures conference.
Dates
16 - 17 Dec 1980.
Place
Oxford, UK.

Optional Information

Secondary number(s)
CONF-801221--1.