Accession Number:

ADA008204

Title:

Acoustic Emission Behavior of Aluminum Alloys.

Descriptive Note:

Technical rept.,

Corporate Author:

CALIFORNIA UNIV LOS ANGELES

Personal Author(s):

• Ono,Kanji
• Ucisik,H.

Report Date:

1975-02-01

Pagination or Media Count:

31.0

Abstract:

Acoustic emission studies of five high strength aluminum alloys are reported. Threshold crossing counts, their dependence on the threshold level, and frequency spectra were measured during fracture toughness tests and correlated to stress intensity factor. In the T7 conditions, acoustic emission due to plastic zone expansion was initially detected followed by that due to slow crack growth.

Descriptors:

• *ALUMINUM ALLOYS
• *FRACTURE(MECHANICS)
• *ACOUSTIC EMISSIONS
• ACOUSTIC DETECTION
• CRACK PROPAGATION
• ULTRASONIC TESTS

Subject Categories:

• Metallurgy and Metallography
• Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE