Accession Number : AD0733937

Title :   Field Ion Microscope Observation of Iron Base-Tungsten Alloys.

Descriptive Note : Technical rept.,

Corporate Author : ARMY MATERIALS AND MECHANICS RESEARCH CENTER WATERTOWN MASS

Personal Author(s) : French,Robert D.

Report Date : AUG 1971

Pagination or Media Count : 20

Abstract : A field ion microscope investigation was carried out for low-solute content iron base-tungsten alloys. These alloys had previously demonstrated an etching effect that was postulated to be the result of solute atom ordering. The investigation did not reveal ordering of the solute atoms, although a second etching effect was demonstrated. Specimen preparation for the field ion microscope produced a twin in one sample. The twin was analyzed for shape and boundary structure. Results are contrasted with earlier observations. (Author)

Descriptors :   (*METALLOGRAPHY, ELECTRON MICROSCOPY), (*IRON ALLOYS, METALLOGRAPHY), DUCTILE BRITTLE TRANSITION, TUNGSTEN ALLOYS, GRAIN STRUCTURES(METALLURGY), MICROSTRUCTURE

Subject Categories : Properties of Metals and Alloys
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE