Title:
金属試料中の介在物および／または析出物の分析方法、および、金属試料中の介在物および／または析出物の捕集方法
Document Type and Number:
Japanese Patent JP7020447
Kind Code:
B2
Abstract:
To provide a method of accurately collecting and analyzing inclusions and/or precipitates that are chemically unstable and chemically dissolve in an electrolyte solution.SOLUTION: The method of analyzing inclusions and/or precipitates in a metal sample includes: an electrolysis step of electrolyzing a metal sample in a non-aqueous solvent-based electrolyte solution; a cleaning step of removing the electrolyte solution adhering to the metal sample after the electrolysis step; a separation step of immersing the metal sample after the washing step in a dispersion solution, and separating inclusions and/or precipitates from the surface of the metal sample into the dispersion solution; a collection step of filtering the dispersion solution to collect the inclusions and/or precipitates contained in the dispersion solution; a quantification step of quantifying the collected inclusions and/or precipitates; a step of performing twice or more the steps from the electrolysis step to the quantification step under different electrolysis conditions to obtain two or more quantification values; and an analysis step of obtaining analysis results of the inclusions and/or precipitates in the metal sample from the relationships between the obtained two or more quantification values and the electrolyte conditions.SELECTED DRAWING: Figure 1
Inventors:
Masao Inose
Satoshi Kishiro
Satoshi Kishiro
Application Number:
JP2019062709A
Publication Date:
February 16, 2022
Filing Date:
March 28, 2019
Export Citation:
Assignee:
jfe Steel Corporation
International Classes:
G01N33/202
Domestic Patent References:
| JP2010127789A | ||||
| JP2010151695A | ||||
| JP2020148696A | ||||
| JP2010127791A | ||||
| JP8184537A |
Foreign References:
| CN102818723A |
Attorney, Agent or Firm:
Tetsuro Isomura
Akira Kumasaka
Tetsuya Sakai
Kazuhiro Mori
Akira Kumasaka
Tetsuya Sakai
Kazuhiro Mori