The effect of hydrogen on positron annihilation in 18-8 stainless steel

Hua Gu; Maorong Huang; Peiyu Gao

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The effect of hydrogen on positron annihilation in 18-8 stainless steel

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- The effect of hydrogen on positron annihilation in 18-8 stainless steel
- Nuclear Techniques Vol. 05, Issue 6, (1982)
- 作者机构：
  
  1.中国科学院高能物理研究所
  2.北京钢铁学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：1982-12
- 稿件说明：
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Hua Gu, Maorong Huang, Peiyu Gao. The effect of hydrogen on positron annihilation in 18-8 stainless steel[J]. Nuclear techniques, 1982, 05(6): 48-49.
DOI：

Hua Gu, Maorong Huang, Peiyu Gao. The effect of hydrogen on positron annihilation in 18-8 stainless steel[J]. Nuclear techniques, 1982, 05(6): 48-49. DOI：

摘要

氢引起材料破坏的问题，长期以来一直是被广泛研究的课题。随着工业，特别是能源工业的发展，诸如在石油开采和精炼过程，核电站反应堆等领域中，其结构材料的破坏与氢密切相关

[1，2]

，即使采用奥氏体不锈钢作为抗氢材料，它们的破裂现象也日见增多，这就引起了广泛的注意。与体心立方结构的材料不同，氢在奥氏体不锈钢中，特别是在亚隐奥氏体不锈钢中，除了降低塑性、抗拉强度和造成裂纹外，还诱发马氏体相变

。

Abstract

The effect of hydrogen in 18-8 austenitic stainless steel

in which the Ni content is different

has been studied by positron annihilation lifetime and Doppler broadening. The result shows that the mean life increases as the time of hydrogen charge on the sample is prolonged. The mean lifetime of the sample charged with hydrogen for long time is about 9% as long as that of the sample uncharged with hydrogen. The change of S line-shape parameter of Doppler broadening with the time of charge presents a similar tendency. The Ni content of the sample appears no obvious effect on the quantities mentioned above. The state and the action of hydrogen in such steel have been discussed.

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references

A. S. Teleman , Proc of conf. fundamental aspects of S.C.C. , 1969 , P. 446 .

田中ほ办，铁と钢， 55 ， 7 ， 40 （ 1969 ）.

高佩钰，金属学报， 15 , 323 （ 1979 ）.

H. Mathias et al ., Second intern. cong. on hydrogen in metals , 2C11 , （ June. 1977 ） Paris .

K. Nishiwaki et al ., Proc. of fifth intern. cong. of positron annihilation , 1979 , P. 177 .

S. M. Kim and W. J. L. Buyers , ibid , P. 213 .

张天保和刘年庆，“ 正电子湮灭寿命谱仪的安装调试 ”，核探测器和核电子学会议报告（ 1979 ）.

Gao Peiyu , Proc. of 8th intern. cong. on metallic corrosion, Main Z 1981 , P. 406 .

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