EFFECTS OF NITROGEN AND CARBON ION IMPLANTATION INTO AUSTENITIC STAINLESS STEEL ON HYDROGEN ABSORPTION

  • Terashima, K. (Chiba Inst. of Tech.) ;
  • Minegishi, T. (Chiba Inst. of Tech.) ;
  • Matsusaka, K. (Shibaura Inst. of Tech.)
  • 발행 : 1996.10.01

초록

The effect of implanted nitrogen and carbon ion into SUS 304 on the absorption of hydrogen by cathodic chaging were studied. Implantations of $N^+$, $C^+$ were performed with doses of $3\times10^{17}$ ions $\textrm{cm}^2$ and $5\times10^{17}N^+cm^2$, and $5\times10^{17}C^+cm^2$, at an energy of 90 keV. Nitrides and carbide were investigatedby X-ray diffraction, Auger electron spectroscopy (AES) and scanning electron microscope (SEM). Formation of hydrides during cathodic charging were depressed by a modified surface layer. It is concluded that the both nitrides and carbides act as the barrier of hydrogen migration and the catalyst of desorption of cathodically charged hydrogen.

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