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:

1971-10-01

Pagination or Media Count:

114.0

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