Formation, and mechanical and magnetic properties of bulk ferromagnetic Fe-Nb-B-Y-(Zr, Co) alloys

Fe element was partially substituted by Zr and Co in an attempt to enhance the glass-forming ability, and mechanical and soft magnetic properties of Fe 74-x Nb 6 B 17 Y 3 (Zr, Co) x (x = 3, 5, 8) amorphous alloys. Both partial replacements resulted in the enhancement of the glass-forming ability, and 3-mm diameter rods with a fully amorphous structure were prepared by a copper mold casting method. Zr and Co containing Fe-based bulk amorphous alloys exhibited high compressive fracture strength of about 4 and 3.5 GPa, respectively. However, Zr and Co induced different effects on the magnetic properties. Whereas the partial replacement of Fe by Zr was found to decrease dramatically the saturation magnetization, the partial replacement of Fe by Co provided an increase of about 25% of the saturation magnetization.

[1]  W. Johnson,et al.  A universal criterion for plastic yielding of metallic glasses with a (T/Tg) 2/3 temperature dependence. , 2005, Physical review letters.

[2]  J. Eckert,et al.  Bulk amorphous FeCrMoGaPCB: Preparation and magnetic properties , 2005 .

[3]  Joo-Hyung Kim,et al.  Synthesis of ferromagnetic Fe-based bulk glassy alloys in the Fe–Nb–B–Y system , 2005 .

[4]  A. Inoue,et al.  (Fe,Co,Ni)–B–Si–Nb bulk glassy alloy with super-high strength and some ductility , 2005 .

[5]  A. Inoue,et al.  A New Fe‐based Bulk Glassy Alloy with Outstanding Mechanical Properties , 2004 .

[6]  A. Inoue,et al.  Superhigh strength and good soft-magnetic properties of (Fe,Co)–B–Si–Nb bulk glassy alloys with high glass-forming ability , 2004 .

[7]  D. Miracle,et al.  A structural model for metallic glasses , 2004, Microscopy and Microanalysis.

[8]  Ryusuke Hasegawa,et al.  Applications of amorphous magnetic alloys , 2004 .

[9]  C. Liu,et al.  Structural amorphous steels. , 2004, Physical review letters.

[10]  S. Poon,et al.  Fe-based bulk metallic glasses with diameter thickness larger than one centimeter , 2004 .

[11]  Veerle Keppens,et al.  Synthesis of iron-based bulk metallic glasses as nonferromagnetic amorphous steel alloys , 2003 .

[12]  C. Liu,et al.  A new glass-forming ability criterion for bulk metallic glasses , 2002 .

[13]  W. Johnson.  Bulk amorphous metal—An emerging engineering material , 2002 .

[14]  A. Inoue,et al.  Bulk Glassy Fe-Ga-P-C-B-Si Alloys with High Glass-Forming Ability, High Saturation Magnetization and Good Soft Magnetic Properties , 2000 .

[15]  Yat Li,et al.  Reduced glass transition temperature and glass forming ability of bulk glass forming alloys , 2000 .

[16]  A. Inoue.  Stabilization of metallic supercooled liquid and bulk amorphous alloys , 2000 .

[17]  T. Shen,et al.  Bulk ferromagnetic glasses prepared by flux melting and water quenching , 1999 .

[18]  A. Makino,et al.  New bulk amorphous Fe–(Co,Ni)–M–B (M=Zr,Hf,Nb,Ta,Mo,W) alloys with good soft magnetic properties , 1998 .

[19]  A. Takeuchi,et al.  Bulk amorphous alloys with high mechanical strength and good soft magnetic properties in Fe–TM–B (TM=IV–VIII group transition metal) system , 1997 .

[20]  A. Takeuchi,et al.  New Fe–Co–Ni–Zr–B Amorphous Alloys with Wide Supercooled Liquid Regions and Good Soft Magnetic Properties , 1997 .

[21]  A. Inoue,et al.  Effect of Additional Elements (M) on the Thermal Stability of Supercooled Liquid in Fe72−xAl5Ga2P11C6B4Mx Glassy Alloys , 1996 .

[22]  A. K. Niessen,et al.  Cohesion in metals , 1988 .

[23]  Pierre Villars,et al.  Pearson's handbook of crystallographic data for intermetallic phases , 1985 .

[24]  H. Chen.  Correlation between elastic constants and flow behavior in metallic glasses , 1978 .

[25]  R. O'handley,et al.  New non-magnetostrictive metallic glass , 1976 .

[26]  P. Duwez,et al.  Amorphous Ferromagnetic Phase in Iron‐Carbon‐Phosphorus Alloys , 1967 .