Metal treatment – Stock – Magnetic
Reexamination Certificate
2005-08-11
2010-10-19
Wyszomierski, George (Department: 1793)
Metal treatment
Stock
Magnetic
C148S403000
Reexamination Certificate
active
07815753
ABSTRACT:
Disclosed is a Fe-based bulk amorphous alloy composition which forms a bulk amorphous substance due to its excellent amorphous formability when it is cooled to a temperature lower than its glass transition temperature from the liquid state at a relatively low cooling rate of 1000 K/s or less, has high warm processability in a low temperature range owing to its supercooled liquid region of 20K or higher and has excellent fluidity in the liquid state and thereby good castability. The Fe-based multi-element bulk amorphous alloy composition is represented by a formula of FeαCβSiγBxPyMa, in which M is at least one element selected from Ti(titanium), Cr(chromium), Mo(molybdenum), Nb(niobium), Zr(Zirconium), Ta(tantalum), W(tungsten) and V(vanadium), α, β, γ, x, y, and a each represent atomic % of iron(Fe), Carbon(C), silicon(Si), boron(B), phosphorus(P) and the selected metal element, in which α is 100-(β+γ+x+y+a) atomic %, β is 6 atomic % or more and 13 atomic % or less, γ is 1 atomic % or more and 5 atomic % or less, x is 4.5 atomic % or more and 9.5 atomic % or less, y is 3 atomic % or more and 10 atomic % or less and a is 0.1 atomic % or more and 6 atomic % or less.
REFERENCES:
patent: 5288344 (1994-02-01), Peker et al.
patent: 5735975 (1998-04-01), Lin et al.
patent: 5876519 (1999-03-01), Inoue et al.
patent: 6053989 (2000-04-01), Orillion et al.
patent: 6077367 (2000-06-01), Mizushima et al.
patent: 6325868 (2001-12-01), Kim et al.
patent: 2003/0201032 (2003-10-01), Yoshida et al.
patent: 2005/0236071 (2005-10-01), Koshiba et al.
patent: 1982185957 (1981-05-01), None
patent: 1988117406 (1986-11-01), None
patent: 1994158239 (1992-11-01), None
patent: 1996333660 (1996-12-01), None
patent: 19977256122 (1997-09-01), None
patent: 2004156134 (2004-06-01), None
English Translation of JP 2004-156134.
Fe-based bulk metallic glasses with diameter thickness larger than one centimeter; V. Ponnambalam, S. Joseph Poon, Gary J. Shiflet; J. Mater. Res., vol. 19, No. 5, May 2004; 2004 Materials Research Society.
Bulk Amorphous Ni75-xNb5MxP20-yBy (M=Cr,Mo) Alloys with Large Supercooling and High Strength; Xinmin Wang, Isamu Yoshii, Akihisa Inoue, Yon-Han Kim, In-Bae Kim; Materials Transactions Kim, Vol. 40, No. 10 (1999) , pp. 1130 to 1136.
Ni-based bulk metallic glass formation in the Ni-Nb-Sn and Ni-Nb-Sn-X (X=B,Fe,Cu) alloy systems; Haein Choi-Yim, Donghua Xu, William L. Johnson; Applied Physics Letters vol. 82, No. 7; Feb. 17, 2003; pp. 1030-1032 .
International Search Report, dated Dec. 9, 2005. All references cited in the Search Report and not previously submitted are listed above.
Heo Myung-Il
Hwang In-Seok
Kim Chul-Woo
Kim Jong-Won
Kwon Sang-Hum
Cantor & Colburn LLP
Kyungpook National University Industry-Academic Cooperation Foun
Wyszomierski George
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