Defectiveness of the crystal structure of electroerosion powders

Journal Article · Tue Mar 01 00:00:00 EST 1988 · Sov. Powder Metall. Met. Ceram. (Engl. Transl.); (United States)

OSTI ID:6362039

Fominskii, L P; Myuller, A S; Levchuk, M V

The fine structure and defectiveness of metal powder crystal lattices produced by electroerosion dispersion were examined. Dispersion was performed on granulated aluminum, Armco iron, carbon steels, and tungsten. The fine structure was examined by x-ray diffraction. Harmonic analysis was performed using a computer and a program which calculates not only the expansion coefficients of the functions into a Fourier series but also the microdistortions and the dimensions of the mosaic blocks. Electroerosion powders were found to have higher density of crystal lattice defects which can increase their chemical and catalytic activity, improve the metallic electroerosion powder passivation, and increase their corrosion resistance.

• Research Organization: Tulachermet Scientific and Production Organization (USSR)
• OSTI ID: 6362039
• Journal Information: Sov. Powder Metall. Met. Ceram. (Engl. Transl.); (United States), Vol. 26:10; Other Information: Translated from Poroshkovaya Metallurgiya; 26: No. 10, 74-78(Oct 1987)
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM
CRYSTAL STRUCTURE
CARBON STEELS
IRON
TUNGSTEN
CATALYTIC EFFECTS
COMPUTER CALCULATIONS
CORROSION RESISTANCE
CRYSTAL LATTICES
DISLOCATIONS
EROSION
PARTICLE SIZE
PASSIVATION
POWDER METALLURGY
POWDERS
SERIES EXPANSION
X-RAY DIFFRACTION
ALLOYS
COHERENT SCATTERING
CRYSTAL DEFECTS
DIFFRACTION
ELEMENTS
IRON ALLOYS
IRON BASE ALLOYS
LINE DEFECTS
METALLURGY
METALS
SCATTERING
SIZE
STEELS
TRANSITION ELEMENTS
360102* - Metals & Alloys- Structure & Phase Studies
360101 - Metals & Alloys- Preparation & Fabrication