Accession Number : AD0695680

Title :   ULTRASONIC TEST PROCEDURE FOR RATING INTERNAL CLEANLINESS OF SEMI-FINISHED MATERIAL.

Descriptive Note : Final rept. 17 Jun 68-16 Jun 69,

Corporate Author : INTERNATIONAL HARVESTER CO CHICAGO ILL MFG RESEARCH

Personal Author(s) : Carter,C. L. ; Cellitti,R. A. ; Abar,J. W.

Report Date : JUN 1969

Pagination or Media Count : 120

Abstract : An investigation was conducted to evaluate and standarize upon various ultrasonic instrument and operational parameters which may alter inspectional response in the detection of nonmetallic inclusions and cleanliness rating of semi-finished material. In order to obtain an acceptable degree of uniformity of test results between various laboratories, recommendations are presented with regard to specimen preparation, instrumentation requirements, search unit specifications, system calibration, inspection procedure and data processing. (Author)

Descriptors :   (*STEEL, NONDESTRUCTIVE TESTING), ULTRASONIC RADIATION, QUALITY CONTROL, COMPUTER PROGRAMMING, INSTRUMENTATION, ACCURACY, TRANSDUCERS, CALIBRATION, METALLOGRAPHY, MAGNETIC PROPERTIES, MICROSCOPY

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

Distribution Statement : APPROVED FOR PUBLIC RELEASE