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首页> 外文期刊>Journal of Nuclear Materials: Materials Aspects of Fission and Fusion >EFFECTS OF IRRADIATION AND IMPLANTATION ON PERMEATION AND DIFFUSION OF HYDROGEN ISOTOPES IN IRON AND MARTENSITIC STAINLESS STEEL
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EFFECTS OF IRRADIATION AND IMPLANTATION ON PERMEATION AND DIFFUSION OF HYDROGEN ISOTOPES IN IRON AND MARTENSITIC STAINLESS STEEL

机译：辐射和注入对铁和马氏体不锈钢中氢同位素的渗透和扩散的影响

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摘要

Permeation and diffusion of hydrogen were measured on virgin and preirradiated iron and martensitic stainless steel with thicknesses of 210 and 810 mu m at temperatures from 100 degrees to 400 degrees C. A slight dependence of permeability on thickness and pressure was tentatively ascribed to surface effects. Pressure dependence of diffusivity and deviation from Arrhenius behaviour at low temperatures and/or small thicknesses was consistently described by a model of hydrogen trapping at saturable traps, Preirradiation at room temperature to displacement closes up to 1.5 x 10(-3) dpa had no influence on permeation but reduced the diffusivity in the steel. Diffusion coefficients were also derived from the time dependence of hydrogen release during implantation. The results show significant differences to the results from permeation measurements. Permeation was strongly increased under penetrative light ion irradiation, probably due to ionization and dissociation of the hydrogen gas on the upstream side. [References: 77]
机译：在100到400摄氏度的温度下，在厚度为210和810μm的原始和预辐照的铁和马氏体不锈钢上测量了氢的渗透和扩散。试探性地将渗透率对厚度和压力的轻微依赖归因于表面效应。低温下和/或较小厚度下扩散率的压力依赖性和偏离Arrhenius行为的模型始终由饱和阱中的氢阱模型来描述，室温下的预辐射至位移最高可达1.5 x 10（-3）dpa无影响渗透但降低了钢中的扩散率。扩散系数也从植入过程中氢释放的时间依赖性得出。结果显示出与渗透测量结果显着不同。在渗透性光离子辐照下，渗透率显着增加，这可能是由于上游侧氢气的电离和离解所致。 [参考：77]

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