Application of Digital Techniques to Microstructure Analysis of Materials.

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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

Author(s):
Caulfield, P. J.
Author Organization(s):
DATA CORP DAYTON OHIO
Descriptive Note:
Final rept. Aug 70-Jul 71,
Pagination:
0114

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
FR-71-4, AFML-TR-71-214
Contract/Grant Number(s):
F33615-70-C-1586
Task Number(s):
735105
Project Number(s):
AF-7351
Monitor Series:
TR-71-214
 Subject Terms
Joint Capability Areas:
JCA_5.3_Planning; JCA_5_Command and Control; JCA_5.3.3_Develop Strategy; JCA_5.3.4_Develop Courses of Action; JCA_5.3.5_Analyze Courses of Action
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*METALLOGRAPHY, *COMPUTER PROGRAMS), (*TITANIUM ALLOYS, MICROSTRUCTURE), MECHANICAL PROPERTIES, PHOTOMICROGRAPHY, PHOTOGRAPHIC RECORDING SYSTEMS, DIGITAL COMPUTERS, STATISTICAL ANALYSIS, ALUMINUM ALLOYS, TIN ALLOYS, MOLYBDENUM ALLOYS, ZIRCONIUM ALLOYS
Field(s)/Group(s):
Properties of Metals and Alloys, Computer Programming and Software, Computer Hardware
Keyword(s):
FORTRAN, TITANIUM ALLOY 6AL 6MO 2SN 4ZR
Report Date:
1971 Oct 01