METHOD OF MODIFYING IRON BASED GLASSES TO INCREASE CRYTALLIZATION TEMPERATURE WITHOUT CHANGING MELTING TEMPERATURE

Title:

METHOD OF MODIFYING IRON BASED GLASSES TO INCREASE CRYTALLIZATION TEMPERATURE WITHOUT CHANGING MELTING TEMPERATURE

Document Type and Number:

WIPO Patent Application WO2004074522

Kind Code:

A3

Abstract:

An alloy design approach to modify and improve existing iron based glasses. The modification is related to increasing the stability of the glass, which results in increased crystallization temperature, and increasing the reduced crystallization temperature (Tcrystaiiization/Tmelting), which leads to a critical cooling rate for metallic glass formation. The modification to the iron alloys includes the addition of lanthanide elements, including gadolinium. The resulting properties of such a modified alloy are compared to those of an unmodified alloy in Figure 1.

Inventors:

BRANAGAN DANIEL JAMES (US)

Application Number:

PCT/US2004/004510

Publication Date:

October 21, 2004

Filing Date:

February 13, 2004

Export Citation:

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Assignee:

NANOSTEEL CO (US)
BRANAGAN DANIEL JAMES (US)

International Classes:

C22C45/02; H01F1/055; H01F10/13; C21C; (IPC1-7): C22C45/02; H01F1/055; H01F10/13

Foreign References:

US5660929A	1997-08-26
JPS5751237A	1982-03-26
US4437912A	1984-03-20
US4668310A	1987-05-26
JPS57185949A	1982-11-16

Other References: