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The Effect of P and Mo for Thermal and Chemical Properties of Fe-PC-B-Al-Mo Amorphous Alloys  

Gook, Jin-Seon (Dept. of Advanced Materials Engineering, Hanlyo University)
Chon, Woo-Young (Dept. of Dental Technology, Kwangyang Health College)
Publication Information
Journal of the Korean Society for Heat Treatment / v.15, no.2, 2002 , pp. 76-81 More about this Journal
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
Metallic glass; Fe-based alloy; Supercooled liquid region; Corrosion resistance; Passivity;
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  • Reference
1 Binary Alloy phase Diagrams, ed. by T. B. Massalsky, ASM International, Materials Park, Ohio (1990)
2 A. Inoue and J. S. Gook : Mater. Trans., JIM, 37 (1996) 32   DOI
3 M. Naka, K. Hashimoto and T. Masumoto: J. NonCrystalline Solids 28 (1978) 403   DOI   ScienceOn
4 K, Hashimoto, K. Asami, M. Naka and T. Masumoto: Corrosion Engineering 28 (1979) 271   DOI
5 M. Naka, K. Hashimoto and T. Masumoto: J. NonCrystalline Solids 28 (1978) 61   DOI   ScienceOn
6 K. Hashimoto, M. Naka, K. Asami and T. Masumoto: Corrosion Science 19 (1979) 857   DOI
7 K. Asami, K. Hashimoto and S. Shimodaira: Corrosion Science 18 (1978) 151   DOI   ScienceOn
8 A. Brenner and G. Riddele: J. Res. Bur. Stand., 39 (1974) 385
9 A. E. Yaniv, J. B. Lumsden and R. W. Staehle, J. electrochem. Soc. 124 (1990) 490   DOI   ScienceOn
10 K. Hashimoto, K. Asami and K. Teramoto: Corros. Sci. 19 (1979) 3   DOI   ScienceOn
11 H. Habazaki, A. Kawashima, K. Asami and K. Hashimoto, Mater. Sci. Eng. Al34 (1991) 1033
12 M. W. Tan, E. Akiyama, A. Kawashima, K. Asmi and K. Hashimoto, Corros. Sci. 37 (1995) 1289   DOI   ScienceOn
13 K. Hashimoto, K. Asami and K. Teramoto: Corros. Sci. 19 (1979) 3   DOI   ScienceOn
14 M. -W. Tan, E. Akiyama, A. Kawashima, K. Asami and K. Hashimoto : Corrosion Science 38 (1995) 349
15 H. S. Ko, I. G. Moon and C. S. Choi : J. Kor. Inst., Met. &Mater, 34 (1996) 1269
16 A. Inoue, Y. Shinohara and J. S. Gook : Mater. Trans., JIM, 36 (1995) 1427   DOI
17 R. Boom et al. 'Enthalpies of formation of alloy', Physica, 115B (1983) 285
18 J. S. Gook, K. K. Lee, D. J. Yoon and J. Choi : J. Kor. Inst., Met. &Mater, 36 (1998) 1757