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首页> 外文会议>20th International Symposium on Effects of Radiation on Materials, Jun 6-8, 2000, Williamsburg, Virginia >Hardening of Vanadium Doped with Nitrogen by Heavy Ion Irradiation and Post-Irradiation Annealing
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Hardening of Vanadium Doped with Nitrogen by Heavy Ion Irradiation and Post-Irradiation Annealing

机译：重离子辐照和辐照后退火对氮掺杂钒的硬化

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摘要

Copper ion irradiation at room temperature and at 573 K up to 1 dpa was conducted on vanadium doped with controlled levels of nitrogen ranging from 12 to 770 weight ppm (wppm). Micro-indentation test was performed to make a quantitative estimation of hardening of the irradiated surface layer. Microhardness of the unirradiated and as-irradiated vanadium increased with increasing nitrogen content. They showed linear relationship when nitrogen was singly varied. Irradiation hardening was independent of nitrogen content and of irradiation temperatures. This fact agrees with microstructure observations. After post-irradiation annealing at 573 K, radiation anneal hardening (RAH) was observed at the nitrogen contents of 170 wppm and above. In comparison with the previous anneal hardening experiments with cold-worked specimens, stepwise increase in the anneal hardening with nitrogen content at about 100 wppm was commonly derived for cold-worked and irradiated vanadium.
机译：在室温和在573 K下高达1 dpa的铜离子辐射是在掺杂有12至770 wt ppm（wppm）受控氮含量的钒上进行的。进行微压痕测试以定量估计照射表面层的硬化。随着氮含量的增加，未辐照和刚辐照的钒的显微硬度增加。当氮单独变化时，它们显示线性关系。辐照硬化与氮含量和辐照温度无关。这个事实与微观结构观察相符。在573 K下进行辐照后退火后，在170 wppm和更高的氮含量下观察到辐照退火硬化（RAH）。与先前使用冷加工样品进行的退火淬火实验相比，对于冷加工和辐照钒，通常在氮含量约为100 wppm的情况下逐步提高退火淬火速度。

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