Accession Number:

AD0738868

Title:

Acoustical Properties of Magnetostrictive and Metallic Materials for Naval Applications.

Descriptive Note:

Final rept. 15 Oct 70-14 Oct 71,

Corporate Author:

INTERAND CORP ROCKVILLE MD

Personal Author(s):

• Feith,Kenneth E.
• Taylor,Robert J.

Report Date:

1972-02-10

Pagination or Media Count:

61.0

Abstract:

The complex interaction of creep and fatigue in nickel and iron specimens was investigated through the combined application of static and high frequency vibratory stress. The development of a novel measuring technique, which utilizes Barkhausen noise as a probe to monitor changes in the microstructure of metals under dynamic conditions, provided the first real time observations of vibratory annealing, high frequency, work hardening, and plastic flow. Author

Descriptors:

• (*IRON
• FATIGUE(MECHANICS))
• (*NICKEL
• FATIGUE(MECHANICS))
• (*NONDESTRUCTIVE TESTING
• MAGNETOSTRICTION)
• CREEP
• MAGNETIC PROPERTIES
• ULTRASONIC RADIATION
• FERROMAGNETIC MATERIALS

Subject Categories:

• Metallurgy and Metallography
• Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE