Standard Test Method for Determination of Metallic Constituents of Tungsten Alloys and Tungsten Hardmetals by X-Ray Fluorescence Spectrometry

Importancia y uso:

5.1 This test method allows the determination of the chemical composition of powdered and sintered tungsten-based hardmetals. This test method is not applicable to material which will not oxidize readily at high temperatures in air, such as tungsten/copper, tungsten/silver alloys, or tungsten/cobalt-ruthenium alloys.

5.2 This test method specified lithium-borate compounds for the glass fusion material. However, numerous other choices are available. These include other lithium-borate compounds, sodium carbonate and borate mixtures. The methodology specified here is still applicable as long as the same fusion mixture is used for both standards and specimens.

Subcomité:

B09.06

Volúmen:

02.05

Número ICS:

71.040.50 (Physicochemical methods of analysis), 77.040.30 (Chemical analysis of metals)

Palabras clave:

absorption and enhancement effects; fusion; interelement effects; tungsten alloys; tungsten carbides; tungsten hardmetals; X-ray fluorescence spectrometry;