Title:
SYSTEM FOR EVALUATING HYDROGEN EMBRITTLEMENT OF THIN SHEET STEEL AND ITS EVALUATION METHOD
Document Type and Number:
Japanese Patent JP3892842
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for evaluating hydrogen embrittlement and its evaluation method capable of correctly and simply evaluating the characteristics of thin sheet steel in consideration of its environment of use and required characteristics.
SOLUTION: The system for evaluating the hydrogen embrittlement of thin sheet steel comprises: an electrolyte cell 1 for holding an electrolytic solution; a cathode 3 for charging a U-shaped test piece 2, provided with load stress by U-bending sheet steel, with hydrogen; an anode 4 in which a hydrogen concentration distribution is arranged in a U-bent part of the test piece in such a way as to lie within the 50% range or less of the average concentration of hydrogen; and a current generating means 5.
Inventors:
Kunio Hayashi
Koji Sakuma
Yuichi Taniguchi
Nobuhiro Fujita
Manabu Takahashi
Koji Sakuma
Yuichi Taniguchi
Nobuhiro Fujita
Manabu Takahashi
Application Number:
JP2003367733A
Publication Date:
March 14, 2007
Filing Date:
October 28, 2003
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
G01N17/00; G01N33/20; (IPC1-7): G01N17/00; G01N33/20
Domestic Patent References:
| JP7146225A | ||||
| JP64028553A | ||||
| JP2001166082A | ||||
| JP8050090A | ||||
| JP2000329726A | ||||
| JP53096912A | ||||
| JP5249025A |
Other References:
佐々木友紀 外1名,”水素誘起型遅れ破壊における破壊感受性の強度レベル依存性について”,No.00-19 日本機械学会材料力学部門講演会講演論文集,日本,社団法人 日本機械学会,2000年10月 5日,493~494頁
Attorney, Agent or Firm:
Tomoyuki Yabuki
Tsugeko Shigeo
Tsugeko Shigeo
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