Accession Number:
ADA141946
Title:
Characterization of the Microstructures of Various Materials.
Descriptive Note:
Final rept. 1 Sep 80-31 Aug 83,
Corporate Author:
SYSTEMS RESEARCH LABS INC DAYTON OH RESEARCH APPLICATIONS DIV
Personal Author(s):
Report Date:
1984-04-01
Pagination or Media Count:
97.0
Abstract:
Research on characterization of microstructures of alloys and non-metallic materials is summarized. The emphasis was on improvements in the appreciation of electron-optical and optical-microscopy methods for determining the morphology, crystallography, and composition of the materials. Alloys studied included those of Al, Ti, and Ni base prepared by ingot, cast, and rapid-solidification methods. Non-metals were polymers and composites of various formulations. Accomplishments included installation of a scanning transmission electron microscope with energy dispersive spectrometry and electron energy loss spectrometers, installation of an ultramicrotome for preparation of nonmetallic specimens, development and improvements of specimen-preparation techniques applied to non-metallics, metal powders, and metallurgical specimens, documentation of microstructures, formulation of analytical methods to provide compositional data, and construction of a simple apparatus for generating experimental quantities or rapidly solidified alloys. Papers and presentations authored or co-authored by personnel are listed. Author
Descriptors:
- *MICROSTRUCTURE
- *X RAY DIFFRACTION
- *ALLOYS
- *NONMETALS
- SCANNING
- MECHANICAL PROPERTIES
- QUICK REACTION
- EXPERIMENTAL DATA
- COMPUTATIONS
- LIFE EXPECTANCY(SERVICE LIFE)
- ALUMINUM ALLOYS
- POLYMERS
- COMPOSITE MATERIALS
- MORPHOLOGY
- SPECTROMETRY
- SOLIDIFICATION
- POROSITY
- FRACTURE(MECHANICS)
- CHEMICAL COMPOSITION
- COSTS
- AEROSPACE SYSTEMS
- COEFFICIENTS
- TABLES(DATA)
- CRYSTALLOGRAPHY
- TITANIUM ALLOYS
- POWDER METALS
- DISPERSIONS
- ELECTRON OPTICS
Subject Categories:
- Physical Chemistry
- Properties of Metals and Alloys