Thermodynamics of Simultaneous Chromizing and Aluminizing of the Mild Steel

연강에 Cr과 Al의 동시 확산 침투 피복의 열역학적 연구

  • 김선규 (울산대학교 공과대학 금속공학과) ;
  • 신원순 (대우조선 국민차 사업본부 기술 연구실)
  • Published : 1992.11.01

Abstract

Thermodynamic calculations were made to find an optimum condition of simultaneous chromizing and aluminizing of mild steel. Results of calculations showed that Cr-Al alloy powder should be used and the optimum composition was 90~95wt% Cr and 5~10wt% Al. Simultaneous chromizing and aluminizing of a mild steel was achieved using 95Cr-5Al wt% alloy powders as a masteralloy, NH4Cl as an activator at $1273^{\circ}$K under Ar atmosphere.

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