Quantitative microanalysis of stainless steel carbides: x-ray absorption in (Fe,Cr,V,Mo)/sub 23/C/sub 6/ and (Nb, V)C

Conference · Thu Jan 01 04:00:00 EST 1981

OSTI ID:6468339

Romig, Jr, A D; Sorenson, W R

X-ray absorption effects within metallurgical thin foils often complicate quantitative chemical microanalysis. Although absorption correction procedures are known, they become ambiguous when absorption occurs in more than one phase. A classic example of multiphase absorption occurs during the analysis of small second phase particles within a parent matrix. An excellent and often used solution to the problem of x-ray absorption in an adjacent parent phase is to physically remove the particle from the parent matrix. This is often accomplished by the use of extraction replicas. However, removing the particle from the matrix phase does not eliminate x-ray absorption within the extracted particle. It is the objective of this paper to show that quantitative x-ray microanalysis of extracted particles is not always routine. X-ray absorption within the extracted particles must be considered. Furthermore, standard absorption correction techniques can be shown to be, in many cases, suitable for treating the x-ray data generated within isolated particles.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6468339
• Report Number(s): SAND-81-1395C; CONF-810705-5; ON: DE81027805
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400103* -- Radiometric & Radiochemical Procedures-- (-1987)
ALLOYS
CARBIDES
CARBON COMPOUNDS
CHEMICAL ANALYSIS
CHROMIUM ALLOYS
CHROMIUM CARBIDES
CHROMIUM COMPOUNDS
COHERENT SCATTERING
CORRECTIONS
CORROSION RESISTANT ALLOYS
DIFFRACTION
ELECTROMAGNETIC RADIATION
ELECTRON DIFFRACTION
ELECTRON MICROSCOPY
EXTRACTION
IONIZING RADIATIONS
IRON ALLOYS
IRON BASE ALLOYS
IRON CARBIDES
IRON COMPOUNDS
MATERIALS
MATRIX MATERIALS
MICROANALYSIS
MICROSCOPY
MOLYBDENUM CARBIDES
MOLYBDENUM COMPOUNDS
NIOBIUM CARBIDES
NIOBIUM COMPOUNDS
NONDESTRUCTIVE ANALYSIS
QUANTITATIVE CHEMICAL ANALYSIS
RADIATION ABSORPTION ANALYSIS
RADIATIONS
SCATTERING
SEPARATION PROCESSES
STAINLESS STEELS
STEELS
TRANSITION ELEMENT COMPOUNDS
VANADIUM CARBIDES
VANADIUM COMPOUNDS
X RADIATION