Journal of the Korean Society for Heat Treatment (열처리공학회지)

The Korean Society for Heat Treatment (한국열처리공학회)
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The Effect of P and Mo for Thermal and Chemical Properties of Fe-PC-B-Al-Mo Amorphous Alloys

Fe-P-C-B-Al-Mo계 비정질합금의 열적.화학적 성질에 미치는 P 및 Mo의 영향

  • Gook, Jin-Seon (Dept. of Advanced Materials Engineering, Hanlyo University) ;
  • Chon, Woo-Young (Dept. of Dental Technology, Kwangyang Health College)
  • 국진선 (한려대학교 신소재공학과) ;
  • 전우용 (광양보건대학 치기공과)
  • Received : 2002.01.20
  • Published : 2002.03.30
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Abstract

The melt-spun amorphous $Fe_{77-X}P_{13}C_4B_4Al_2Mo_X$(x=4~10) and $Fe_{82-X}P_XC_4B_4Al_2Mo_8$(x=9~15) alloys were found to exhibit a large supercooled liquid region(${\Delta}T_x$) exceeding 40 K before crystallization. The largest ${\Delta}T_x$ for the glassy alloys containing Mo reaches as large as 65 K for the $Fe_{69}P_{13}C_4B_4Al_2Mo_8$ alloy. The corrosion behavior of the amorphous $Fe_{77-X}P_{13}C_4B_4Al_2Mo_X$(x=4~15) and $Fe_(82-X)P_XC_4B_4Al_2Mo_8$ (x=9~17) alloys were examined by electrochemical measurements in 9M $H_2SO_4$ solution at 303 K. The addition of Mo(or P) for replacing some portion of Fe is effective in improving the corrosion resistance of the investigated Fe-based glassy alloys. They are spontaneously passivated and have a wide passive region with low passive current density.

Keywords

References

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