Accession Number : AD0286649

Title :   STUDIES OF NONDESTRUCTIVE TESTING TECHNIQUES TO CONTROL PROPERTIES OF CASE HARDENED STEEL COMPONENTS

Corporate Author : ARMY RESEARCH OFFICE WASHINGTON D C

Personal Author(s) : KORYTOSKI,R.D. ; HATCH,H.P. ; ABBE,E.H.

Report Date : DEC 1962

Pagination or Media Count : 1

Abstract : Details of an extensive study to develop simple, accurate, nondestructive testing techniques suitable for inspection of small arms case hardened components are presented. Results of measurements made of magnetic retentivity, flux density, and coercive force and permeability tests conducted comparing amplitude of the fundamental wave, amplitude of the third harmonic wave and wave form distortion are reported. The applicability of mechanical hardness tests for inspection of case hardened parts is a so discussed. Relations of magnetic properties to the case-core physical and metallurgical characteristics and the effects of variable , particularly tempering temperature and time are treated. (Author)

Descriptors :   *NONDESTRUCTIVE TESTING, *SMALL ARMS, *STEEL, HARDNESS, HEAT TREATMENT, HYSTERESIS, MAGNETIC PROPERTIES, PHYSICAL PROPERTIES, TESTS

Distribution Statement : APPROVED FOR PUBLIC RELEASE