Title: Hardfacing material

Abstract

A method of producing a hard metallic material by forming a mixture containing at least 55% iron and at least one of boron, carbon, silicon and phosphorus. The mixture is formed into an alloy and cooled to form a metallic material having a hardness of greater than about 9.2 GPa. The invention includes a method of forming a wire by combining a metal strip and a powder. The metal strip and the powder are rolled to form a wire containing at least 55% iron and from two to seven additional elements including at least one of C, Si and B. The invention also includes a method of forming a hardened surface on a substrate by processing a solid mass to form a powder, applying the powder to a surface to form a layer containing metallic glass, and converting the glass to a crystalline material having a nanocrystalline grain size.

Inventors:

Branagan, Daniel J ^[1]

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1. Iona, ID

Issue Date:

Tue Jan 17 00:00:00 EST 2012

Research Org.:

Idaho National Laboratory (INL), Idaho Falls, ID (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1035031

Patent Number(s):

8097095

Application Number:

10/753,162

Assignee:

Battelle Energy Alliance, LLC (Idaho Falls, ID)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER

B - PERFORMING OPERATIONS B23 - MACHINE TOOLS B23K - SOLDERING OR UNSOLDERING

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B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER

B22F2998/00 - Supplementary information concerning processes or compositions relating to powder metallurgy
B22F2999/00 - Aspects linked to processes or compositions used in powder metallurgy
B22F5/12 - of wires {
B22F7/08 - with one or more parts not made from powder {
B22F9/002 - {amorphous or microcrystalline}
B22F9/008 - {Rapid solidification processing}

B - PERFORMING OPERATIONS B23 - MACHINE TOOLS B23K - SOLDERING OR UNSOLDERING

B23K35/3093 - {with other elements as next major constituents}
B23K9/04 - Welding for other purposes than joining, e.g. built-up welding

C - CHEMISTRY C21 - METALLURGY OF IRON C21D - MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS

C21D2201/03 - Amorphous or microcrystalline structure

C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS

C22C38/22 - with molybdenum or tungsten
C22C38/32 - with boron
C22C45/02 - with iron as the major constituent

C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL

C23C30/00 - Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
C23C4/04 - characterised by the coating material
C23C4/131 - Wire arc spraying

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

Y10T428/12021 - having composition or density gradient or differential porosity
Y10T428/12097 - Nonparticulate component encloses particles

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DOE Contract Number:  

AC07-99ID13727; AC07-05ID14517

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE