Method for measuring the degree of alloying of galvannealed steel sheets
AssigneeNisshin Steel Co., Ltd.
InventorsYusuke Hirose, Fumihiro Ida, Takehiko Ito
Life of this patent
Estimating the term…
Abstract
Highly reliable measurement of degree of alloying of galvannealed steel sheets is carried out in order to fully control the continuous hot-dip galvanizing and galvannealing process on the basis of evaluation of a combination of two or more X-ray diffraction characteristics. Exact degree of alloying can be estimated without regard to fluctuations in the particulars of the material, the process conditions and the type of the product obtained.
Claims9
The method for measuring the degree of alloying of galvannealed steel sheets comprising measuring at least one of the X-ray diffraction characteristics of the iron-zinc intermetallic compounds of said steel sheets, said X-ray diffraction characteristics including the X-ray diffraction intensity, the width of the diffraction profile and the peak angle of said diffraction profile, and estimating said degree of alloying on the basis of analysis of said measured X-ray diffraction characteristics.
Dependencies are inferred from the claim text.