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 : 10 FEB 1972

Pagination or Media Count : 61

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