Title:
HYDROGEN FILLING METHOD AND HYDROGEN EMBRITTLEMENT CHARACTERISTICS EVALUATION METHOD
Document Type and Number:
Japanese Patent JP2020030186
Kind Code:
A
Abstract:
To provide a method with which it is possible to efficiently fill hydrogen without causing a corrosion reaction on a steel material surface, and a method for evaluating hydrogen embrittlement characteristics of a steel material thereby filled with hydrogen.SOLUTION: Provided is a method for filling a steel material with hydrogen, comprising: (a) a step of causing a potential difference to occur between the steel material and a counter electrode and applying a voltage lower than a hydrogen generation potential to the steel material, and then immersing the voltage-applied steel material in an electrolytic solution of pH 7.5 or less and electrochemically filling the steel material with hydrogen; (b) a step of adjusting the pH of the electrolytic solution to 8.0 or greater while a voltage is applied to the steel material; and (c) a step of stopping voltage application to the steel material and removing the steel material from the electrolytic solution.SELECTED DRAWING: None
Inventors:
TOMIMATSU KOTA
OMURA TOMOHIKO
KOBAYASHI KENJI
SENDA TETSUSHI
SAKIYAMA HIROTSUGU
OMURA TOMOHIKO
KOBAYASHI KENJI
SENDA TETSUSHI
SAKIYAMA HIROTSUGU
Application Number:
JP2018157762A
Publication Date:
February 27, 2020
Filing Date:
August 24, 2018
Export Citation:
Assignee:
NIPPON STEEL CORP
International Classes:
G01N17/00; G01N3/08; G01N27/26; G01N30/54
Attorney, Agent or Firm:
Patents corporation Blitas