Numerical Analysis of Influence of Hydrogen Charging Method on Thermal Desorption Spectra for Pre-strained High-Strength Steel

被引：12

作者：

Ebihara, Ken-ichi ^{[1
]}

Iwamoto, Takashi ^{[2
]}

Matsubara, Yukio ^{[3
]}

Yamada, Hiroki ^{[4
]}

Okamura, Tsukasa ^{[5
]}

Urushihara, Wataru ^{[6
]}

Omura, Tomohiko ^{[7
]}

机构：

[1] Japan Atom Energy Agcy, Tokai, Ibaraki 3191195, Japan

[2] JFE Steel Corp, Kurashiki, Okayama 7128511, Japan

[3] NTN Corp, Kuwanashi, Mie 5110867, Japan

[4] NSK Ltd, Fujisawa, Kanagawa 2518501, Japan

[5] Neturen Co Ltd, Tokyo 1418639, Japan

[6] Kobe Steel Ltd, Nishi Ku, Kobe, Hyogo 6512271, Japan

[7] Nippon Steel & Sumitomo Met Corp, Amagasaki, Hyogo 6600891, Japan

来源：

ISIJ INTERNATIONAL | 2014年 / 54卷 / 01期

关键词：

thermal desorption spectrometry; pre-strained high-strength steel; numerical simulation; hydrogen-charging method; PURE IRON; DELAYED FRACTURE; DISLOCATIONS;

D O I：

10.2355/isijinternational.54.153

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

A remarkable difference in thermal desorption spectra of hydrogen obtained from pre-strained high-strength steel specimens which were charged with hydrogen by two different methods was observed. One charging method is by immersion in NH4SCN solution and the other is by cyclic corrosion tests. In order to understand the difference, we simulated numerically thermal hydrogen spectra of the pre-strained high-strength steel. As a result, it was found that the difference of desorption spectra results from the difference of initial hydrogen states which is caused by the amount of charged hydrogen. It was also found that the desorption spectrum in the case of cyclic corrosion test is more sensitive to the initial hydrogen state than that of the immersion case because the amount of charged hydrogen in the former is not as enough as that in the latter.

引用

页码：153 / 159

页数：7

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