Accession Number : ADA117901

Title :   Ultrasonic Measurement of Case Depth in Case Hardened Steels. Evaluation of Feasibility for the Ultrasonic Measurement of Case Depth in Case Hardened Steels.

Descriptive Note : Final rept. Jan-Jun 82,

Corporate Author : ULTRASONICS INTERNATIONAL INC TREVOSE PA

Personal Author(s) : Good,Morris S

PDF Url : ADA117901

Report Date : Jul 1982

Pagination or Media Count : 55

Abstract : Various methods have been proposed for measuring case depth in case hardened steels. Each mehtod as described in past literature is restricted in practical application due to problems in area localization, geometry, sensitivity, compositional changes due to carbon and/or nitrogen gradients formed during the hardening process.

Descriptors :   *Steel, *Case hardening, *Ultrasonic tests, *Nondestructive testing, *Depth, Measurement, Radiofrequency pulses, Signal to noise ratio, Spatial distribution, Rayleigh scattering, Transformations, Preparation

Subject Categories : Metallurgy and Metallography
      Fabrication Metallurgy
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE