Patent EP0002923A1 successfully refreshed from Google Patents.
EP0002923A1
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Iron group transition metal-refractory metal-boron glassy alloys
Assignee: Honeywell International Inc
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Filing: 1978-12-18
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Granted: —
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Expires: 1998-12-18
Abstract
Abstract The invention deals with glassy alloys consisting essentially of about 5 to 12 atom per cent boron, one of the members selected from the group of 20 to 60 atom per cent molybdenum and about 13 to 40 atom per cent tungsten and the balance essentially one of the group consisting of cobalt, iron and nickel. The invention also relates to glassy alloys containing all three iron, cobalt and nickel plus molybdenum and/or tungsten, together with low boron content. The latter glassy alloys of the invention consist essentially of about 5 to 12 atom per cent boron, about 5 to 15 atom per cent molybdenum and/or tungsten and the balance essentially iron, cobalt and nickel plus incidental impurities. The glassy alloys evidence hardness values of at least about 1000 Kg/ mm 2 , ultimate tensile strengths of at least about 330 Kpsi and crystallization temperatures of at least about 445° C.
Inventors
- 👤 Ranjan Ray
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 12:26
CPC Classifications
C; C22; C22C; C22C45/00; C22C45/04; C22C45/008; C22C45/02
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
101 words
A substantially totally glassy alloy consisting essentially of (I) about 5 to 12 atom percent boron and (II) a member selected from the group consisting of about 20 to 60 atom percent molybdenum and about 13 to 40 atom percent tungsten with the balance being essentially a metal of the group consisting of cobalt, iron and nickel or (III) a member selected from the group consisting of about 5 to 15 atom percent molybdenum, tungsten or a mixture thereof and the balance being essentially iron, cobalt and nickel with each being present in an amount of at least 5 atom percent.
Claim 2
Dependent Claim
101 words
A substantially totally glassy alloy consisting essentially of (I) about 5 to 12 atom percent boron and (II) a member selected from the group consisting of about 20 to 60 atom percent molybdenum and about 13 to 40 atom percent tungsten with the balance being essentially a metal of the group consisting of cobalt, iron and nickel or (III) a member selected from the group consisting of about 5 to 15 atom percent molybdenum, tungsten or a mixture thereof and the balance being essentially iron, cobalt and nickel with each being present in an amount of at least 5 atom percent.
Claim 3
Dependent Claim
54 words
The glassy alloy of claim 1 wherein the boron is present in an amount of 8-10 atom percent, the molybdenum and tungsten in member II is present in amounts of 30 to 50 atom percent respectively and the molybdenum and tungsten in Member III is present in amounts of 8 to 12 atom percent.
Claim 4
Dependent Claim
46 words
A substantially totally glassy alloy consisting essentially of about 5 to 12 atom percent boron, a member selected from the group consisting of about 30 to 60 atom percent molybdenum and about 20 to 35 atom percent tungsten and the balance essentially nickel plus incidental impurities.
Claim 5
Dependent Claim
46 words
A substantially totally glassy alloy consisting essentially of about 5 to 12 atom percent boron, a member selected from the group consisting of about 30 to 60 atom percent molybdenum and about 20 to 35 atom percent tungsten and the balance essentially nickel plus incidental impurities.
Claim 6
Dependent Claim
65 words
The glassy alloy of claim 3 having a composition selected from the group consisting of Ni 57 Mo 35 B 8 , Ni 55 Mo 35 B 10 , Ni 50 Mo 40 B 10 , Ni 45 Mo 45 B 10 , Ni 42 Mo 50 B 8 , Ni 70 W 22 B 8 , Ni 70 W 20 B 10 and Ni60W30B10'
Claim 7
Dependent Claim
46 words
A substantially totally glassy alloy consisting essentially of about 5 to 12 atom percent boron, a member selected from the group consisting of about 25 to 40 atom percent molybdenum and about 13 to 25 atom percent tungsten and the balance essentially iron plus incidental impurities.
Claim 8
Dependent Claim
46 words
A substantially totally glassy alloy consisting essentially of about 5 to 12 atom percent boron, a member selected from the group consisting of about 25 to 40 atom percent molybdenum and about 13 to 25 atom percent tungsten and the balance essentially iron plus incidental impurities.
Claim 9
Dependent Claim
43 words
The glassy alloy of claim 5 having a composition selected from the group consisting of Fe 60 Mo 30 B 10 , Fe 55 Mo 35 B 10 , Fe 77 W 15 B 8 and Fe 77 W 13 B 10 .
Claim 10
Dependent Claim
46 words
A substantially totally glassy alloy consisting essentially of about 5 to 12 atom percent boron, a member selected from the group consisting of about 20 to 50 atom percent molybdenum and about 15 to 40 atom percent tungsten and the balance essentially cobalt plus incidental impurities.
Claim 11
Dependent Claim
46 words
A substantially totally glassy alloy consisting essentially of about 5 to 12 atom percent boron, a member selected from the group consisting of about 20 to 50 atom percent molybdenum and about 15 to 40 atom percent tungsten and the balance essentially cobalt plus incidental impurities.
Claim 12
Dependent Claim
44 words
The glassy alloy of claim 7 having a composition selected from the group consisting of Co 66 Mo 26 B 8 , Co55Mo35B10' Co 50 Mo 40 B 10 , Co 70 W 20 B 10 and Co 60 W 30 B 10 .
Claim 13
Dependent Claim
52 words
A substantially totally glassy alloy consisting essentially of about 5 to 10 atom percent boron, about 5 to 15 atom percent of at least one of molybdenum and tungsten and the balance essentially iron, cobalt and nickel, each present in an amount of at least about 5 atom percent, plus incidental impurities.
Claim 14
Dependent Claim
52 words
A substantially totally glassy alloy consisting essentially of about 5 to 10 atom percent boron, about 5 to 15 atom percent of at least one of molybdenum and tungsten and the balance essentially iron, cobalt and nickel, each present in an amount of at least about 5 atom percent, plus incidental impurities.
Claim 15
Dependent Claim
59 words
The glassy alloy of claim 9 consisting essentially of about 8 to 10 atom percent boron, about 8 to 12 atom percent of at least one of molybdenum and tungsten, about 50 to 65 atom percent of one of the iron group metals and about 13 to 35 atom percent of the remaining two of the iron group metals.
References Cited (Backward Citations)
US3986867A
Cited
FR2281434A1
Cited
FR2317370A1
Cited
DE2756920A1
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FR2376217A1
Cited
FR2376218A1
Cited
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