Journal of the Korean institute of surface engineering (한국표면공학회지)

The Korean Institute of Surface Engineering (한국표면공학회)
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Effects of Nb Addition on Microstructure and Oxidation Behavior of Ti Alloy

Nb이 첨가된 Ti합금의 미세 조직 및 산화 거동

  • 이도재 (전남대학교 공과대학 금속공학과) ;
  • 이광민 (전남대학교 공과대학 금속공학과) ;
  • 이경구 (전남대학교 공과대학 금속공학과) ;
  • 박범수 (전남대학교 공과대학 금속공학과) ;
  • 김수학 (전남대학교 공과대학 금속공학과) ;
  • 전충극 (㈜금강기건) ;
  • 윤계림 (㈜금강기건)
  • Published : 2004.02.01
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Abstract

The oxidation behavior of Ti-Nb alloys was studied in dry atmosphere. After vacuum arc melting and hot rolling treatment, Ti-Nb alloys were oxidized at $450^{\circ}C$∼$750^{\circ}C$. The oxidation behaviors between matrix and oxide scale were analyzed by SEM, XPS and XRD. Ti-Nb alloys had higher oxidation resistance than pure Ti at $750^{\circ}C$. XPS analysis of oxide film revealed that $TiO_2$ oxide was formed on the top of surface. The weight gains during the oxidation increase rapidly at temperature above $600^{\circ}C$ which obey the parabolic law.

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References

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