Quantitative analysis method for volume content of each phase in QP steel
A volume content, martensite technology, applied in the analysis of materials, material analysis through optical means, material analysis using wave/particle radiation, etc., can solve the problems of insufficient contrast and difficult quantitative analysis, etc., to achieve formula Simple, promote product research and development, and stable performance
Active Publication Date: 2022-01-07
UNIV OF SCI & TECH BEIJING
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Abstract
The invention discloses a quantitative analysis method for the volume content of each phase in QP steel, which is characterized in that the volume content of ferrite in the QP steel can be obtained by subtracting the volume content of martensite of the QP steel obtained by a color metallographic method by 100% and then subtracting the volume content of retained austenite of the QP steel obtained by an X-ray diffraction method, and further the volume content of each phase in the QP steel is obtained. The novel coloring agent used in the method does not contain picric acid, is stable in solution performance, high in safety, simple in formula and easy to operate, has a very good dyeing effect on the martensite phase in the QP steel, can enable the martensite phase in the QP steel with a complex metallographic structure and relatively small retained austenite to have relatively obvious contrast with other phases, is clear in outline and easy to recognize, and furthermore, the volume content of each phase in the QP steel can be accurately and quantitatively analyzed according to a color metallographic method and an X-ray diffraction method, finally, a guarantee is provided for identification and quantitative detection of microstructures in the QP steel, research and development of products are promoted, and remarkable economic benefits and social benefits are obtained.
Application Domain
Material analysis using wave/particle radiationPreparing sample for investigation +2
Technology Topic
Picric acidDyeing +7
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