Reducing the detection limits of rare earth elements in steels

Journal Article · Mon Dec 01 04:00:00 EST 1986 · Ind. Lab. (Engl. Transl.); (United States)

OSTI ID:6141815

Raskevich, V K; Maiboroda, I K; Frishberg, A A; Panfilova, S Ya

Chemical and chemicospectral analysis methods make it possible to determine rare-earth elements (REE) reliably in steels, but they are time-consuming and laborious. X-ray fluorescence methods are also characterized by the complicated procedure of preparing standard and production specimens for analysis. In this paper, the authors attempt to develop a spectrographic method of determining the REEs in the steel using standard equipment. The authors prepare synthetic standard specimens for determining Ce, Nd, La, Pr, and Y in steels of various grades by adding titrated solutions of the salts of the determined elements to the powder of the steel without REE with subsequent evaporation, drying, and mixing. The steels were ground by the mechanical method. On the basis of the resulting detection limits and analysis accuracy, the proposed method can be recommended for inspection of the technological process in melting steels and for preparation of standard specimens in the plant. The method is 5-7 times faster than the chemicospectral method.

• Research Organization: Ukranian Scientific-Research Institute of Special Steels, Zaporozh'e
• OSTI ID: 6141815
• Journal Information: Ind. Lab. (Engl. Transl.); (United States), Journal Name: Ind. Lab. (Engl. Transl.); (United States) Vol. 52:6; ISSN INDLA
• Country of Publication: United States
• Language: Russian

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
400105 -- Separation Procedures
ALKALI METAL COMPOUNDS
ALLOYS
BROMIDES
BROMINE COMPOUNDS
CERIUM
CHEMICAL ANALYSIS
CHLORIDES
CHLORINE COMPOUNDS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
COAL FINES
COPPER ADDITIONS
COPPER ALLOYS
CORROSION RESISTANT ALLOYS
CRYSTAL STRUCTURE
CRYSTAL-PHASE TRANSFORMATIONS
CURRENTS
ELECTRIC ARCS
ELECTRIC CURRENTS
ELECTRIC DISCHARGES
ELEMENTS
EUTECTICS
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HALOGENS
HARDNESS
INORGANIC PHOSPHORS
IODIDES
IODINE
IODINE COMPOUNDS
IONIZATION
IRON ALLOYS
IRON BASE ALLOYS
LANTHANUM
LINE WIDTHS
LITHIUM CHLORIDES
LITHIUM COMPOUNDS
LITHIUM HALIDES
MANGANESE ADDITIONS
MANGANESE ALLOYS
MECHANICAL PROPERTIES
METALS
MICROHARDNESS
MICROSTRUCTURE
NEODYMIUM
NICKEL ADDITIONS
NICKEL ALLOYS
NONMETALS
PHASE STUDIES
PHASE TRANSFORMATIONS
PHOSPHORS
PLASMA
POTASSIUM BROMIDES
POTASSIUM CHLORIDES
POTASSIUM COMPOUNDS
POTASSIUM IODIDES
PRASEODYMIUM
QUANTITATIVE CHEMICAL ANALYSIS
RARE EARTHS
REAGENTS
RUBIDIUM CHLORIDES
RUBIDIUM COMPOUNDS
SILICON ADDITIONS
SILICON ALLOYS
SODIUM CHLORIDES
SODIUM COMPOUNDS
SODIUM FLUORIDES
SPECTROSCOPY
STAINLESS STEELS
STEEL-40KHN
STEEL-KH18N10T
STEELS
TITANIUM ADDITIONS
TITANIUM ALLOYS
TITRATION
TRANSITION ELEMENTS
X-RAY SPECTROSCOPY
YTTRIUM