Accession Number : AD0733712

Title :   Application of Digital Techniques to Microstructure Analysis of Materials.

Descriptive Note : Final rept. Aug 70-Jul 71,

Corporate Author : DATA CORP DAYTON OHIO

Personal Author(s) : Caulfield,P. J.

Report Date : OCT 1971

Pagination or Media Count : 114

Abstract : The primary objective of this project was to develop digital computer techniques for the quantitative characterization of alloy microstructures. A secondary objective was to utilize these quantities to determine the numerical correlations between processing parameters, microstructure appearance, and mechanical properties. These objectives were restricted in scope to the 6Al-2Sn-4Zr-6Mo titanium alloy. To these ends, computer programs were written to: (1) Perform separation of individual connected regions from the background in a digitized micrograph; (2) compute 34 quantities which describe geometric properties of the photomicrograph; and (3) correlate these 34 quantities with 8 mechanical property measurements for each of 57 alloy specimens. The results of applying these programs to 139 photomicrographs of two perpendicular views of the alloy are given. (Author)

Descriptors :   (*METALLOGRAPHY, *COMPUTER PROGRAMS), (*TITANIUM ALLOYS, MICROSTRUCTURE), MECHANICAL PROPERTIES, PHOTOMICROGRAPHY, PHOTOGRAPHIC RECORDING SYSTEMS, DIGITAL COMPUTERS, STATISTICAL ANALYSIS, ALUMINUM ALLOYS, TIN ALLOYS, MOLYBDENUM ALLOYS, ZIRCONIUM ALLOYS

Subject Categories : Properties of Metals and Alloys
      Computer Programming and Software
      Computer Hardware

Distribution Statement : APPROVED FOR PUBLIC RELEASE