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Hydrogen permeation behaviour of X56 steel in simulated atmospheric environment under loading

机译:X56钢在模拟大气环境下的氢渗透行为。

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摘要

The hydrogen permeation behaviour of X56 steel under loading in a simulated atmospheric environment was investigated. The results show that the hydrogen permeation current increases as the elastic deformation of the steel increases. In addition, the hydrogen permeation current decreases with an increase in plastic deformation. Cracking of the passive film and the reduced specimen thickness after deformation are proposed as reasons for the decrease in permeation. Thus, during plastic deformation, there is a competition between dislocation trapping and dislocation transport of hydrogen, which affects the overall hydrogen permeation current.
机译:研究了X56钢在模拟大气环境下在载荷下的氢渗透行为。结果表明,氢渗透电流随着钢的弹性变形的增加而增加。另外,氢渗透电流随着塑性变形的增加而降低。钝化膜的破裂和变形后试样厚度的减小被认为是渗透率降低的原因。因此,在塑性变形期间,位错俘获与氢的位错迁移之间存在竞争,这会影响总的氢渗透电流。

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