EP0096551A2
Expired / Lapsed
EP
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Amorphous iron-based alloy excelling in fatigue property
Assignee: Unitika Ltd
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Filing: 1983-06-03
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Granted: —
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Expires: 2003-06-03
Abstract
Abstract An amorphous iron-based alloy which comprises not more than 25 atom% of Si and 2.5 to 25 atom% of B (providing that the sum of Si and B falls in the range of 15 to 35 atom%), 1.5 to 20 atom% of Cr, 0.2 to 10 atom% of either or both of P and C, and the balance to make up 100 atom% substantially of Fe excels in fatigue property. An amorphous iron-based alloy which contains not more than 30 atom% of at least one element selected from the group consisting of Co, Ni, Ta, Nb, Mo, W, V, Mn, Ti, At, Cu and Zr in addition to the components making up the aforementioned alloy excels in amorphous texture of forming ability and fatigue property. Since these alloys are also excellent in tensile strength at fracture, thermal resistance, corrosionproofness, and electromagnetic property, they prove highly useful as electromagnetic materials and as reinforcements in various industrial materials.
Inventors
- 👤 Tsuyoshi Masumoto
- 👤 Michiaki Hagiwara
- 👤 Akihisa Inoue
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 02:30
CPC Classifications
C; C22; C22C; C22C45/00; C22C45/02; H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/12; H01F1/14; H01F1/147; H01F1/153; H01F1/15308
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
78 words
An amorphous iron-based alloy excelling in amorphous texture forming ability and fatigue property, comprising: 25 atom% or less of Si; 2.5 to 25 atom% of B; 1.5 to 20 atom% of Cr; 0.2 to 10 atom% of at least one element selected from the group consisting of P and C; and the balance to make up 100 atom% substantially of Fe, providing that the sum of Si and B falls in the range of 15 to 35 atom%.
Claim 2
Dependent Claim
78 words
An amorphous iron-based alloy excelling in amorphous texture forming ability and fatigue property, comprising: 25 atom% or less of Si; 2.5 to 25 atom% of B; 1.5 to 20 atom% of Cr; 0.2 to 10 atom% of at least one element selected from the group consisting of P and C; and the balance to make up 100 atom% substantially of Fe, providing that the sum of Si and B falls in the range of 15 to 35 atom%.
Claim 3
Dependent Claim
47 words
An amorphous alloy as claimed in Claim 1, wherein the Si content does not exceed 17.5 atom%, the B content falls in the range of 5 to 22.5 atom%, and the sum of the Si and B contents falls in the range of 17.5 to 32.5 atom%.
Claim 4
Dependent Claim
36 words
An amorphous alloy as claimed in Claim 2, wherein the Cr content falls in the range of 3 to 10 atom% and the P or C content falls in the range of 0.5 to 5 atom%.
Claim 5
Dependent Claim
39 words
An amorphous alloy as claimed in Claim 2, wherein the Cr content falls in the range of 3 to 10 atom% and the sum of the P and C contents falls in the range of 1 to 8 atom%.
Claim 6
Dependent Claim
82 words
A thin wire comprised of an amorphous iron-based alloy excelling in amorphous texture forming ability and fatigue property, comprising: 25 atom% or less of Si; 2.5 to 25 atom% of B; 1.5 to 20 atom% of Cr; 0.2 to 10 atom% of at least one element selected from the group consisting of P and C; and the balance to make up 100 atom% substantially of Fe, providing the sum of Si and B falls in the range of 15 to 35 atom%.
Claim 7
Dependent Claim
82 words
A thin wire comprised of an amorphous iron-based alloy excelling in amorphous texture forming ability and fatigue property, comprising: 25 atom% or less of Si; 2.5 to 25 atom% of B; 1.5 to 20 atom% of Cr; 0.2 to 10 atom% of at least one element selected from the group consisting of P and C; and the balance to make up 100 atom% substantially of Fe, providing the sum of Si and B falls in the range of 15 to 35 atom%.
Claim 8
Dependent Claim
50 words
A thin wire comprised of an amorphous alloy as claimed in Claim 5, wherein the Si content is 17.5 atom% or less, the B content falls in the range of 5 to 22.5 atom%, the sum of Si and B contents falls in the range of 17.5 to 32.5 atom%.
Claim 9
Dependent Claim
41 words
A thin wire comprised of an amorphous alloy as claimed in Claim 5, wherein the Cr content falls in the range of 3 to 10 atom% and the P. or C content falls in the range of 0.5 to 5 atom%.
Claim 10
Dependent Claim
43 words
A thin wire comprised of an amorphous alloy as claimed in Claim 5, wherein the Cr content falls in the range of 3 to 10 atom% and the sum of P and C contents falls in the range of 1 to 8 atom%.
Claim 11
Dependent Claim
157 words
An amorphous iron-based alloy excelling in amorphous texture forming ability and fatigue property, comprising: 25 atom% or less of Si; 2.5 to 25 atom% of B, providing that the sum of Si and B falls in the range of 15 to 35 atom%; 1.5 to 20 atom% of Cr; 0.2 to 10 atom% of at least one element selected from the group consisting of P and C; 30 atom% or less of at least one element selected from the group consisting of Co, Ni, Ta, Nb, Mo, W, V, Mn, Ti, Aℓ, Cu and Zr; and the balance to make up 100 atom% substantially of Fe, providing that the maximum of Co content is 30 atom% and that of Ni content 20 atom%, and the maximum of Ta and Nb contents are 10 atom% each, those of Mo, W, V and Mn contents 5 atom% each, and those of Ti, A£, Cu and Zr 2.5 atom% each.
Claim 12
Dependent Claim
157 words
An amorphous iron-based alloy excelling in amorphous texture forming ability and fatigue property, comprising: 25 atom% or less of Si; 2.5 to 25 atom% of B, providing that the sum of Si and B falls in the range of 15 to 35 atom%; 1.5 to 20 atom% of Cr; 0.2 to 10 atom% of at least one element selected from the group consisting of P and C; 30 atom% or less of at least one element selected from the group consisting of Co, Ni, Ta, Nb, Mo, W, V, Mn, Ti, Aℓ, Cu and Zr; and the balance to make up 100 atom% substantially of Fe, providing that the maximum of Co content is 30 atom% and that of Ni content 20 atom%, and the maximum of Ta and Nb contents are 10 atom% each, those of Mo, W, V and Mn contents 5 atom% each, and those of Ti, A£, Cu and Zr 2.5 atom% each.
Claim 13
Dependent Claim
48 words
An amorphous alloy as claimed in Claim 9, wherein the Si content is not more than 17.5 atom%, the B content falls in the range of 5 to 22.5 atom%, and the sum of the Si and B contents falls in the range of 17.5 to 32.5 atom%.
Claim 14
Dependent Claim
37 words
ll. An amorphous alloy as claimed in Claim 9, wherein the Cr content falls in the range of 3 to 10 atom% and the P or C content falls in the range of 0.5 to 5 atom%.
Claim 15
Dependent Claim
39 words
An amorphous alloy as claimed in Claim 9, wherein the Cr content falls in the range of 3 to 10 atom% and the sum of the P and C contents falls in the range of 1 to 8 atom%.
Claim 16
Dependent Claim
162 words
A thin wire comprised of an amorphous iron-based alloy excelling in amorphous texture forming ability and fatigue property, comprising: 25 atom% or less of Si; 2.5 to 25 atom% of B, providing that the sum of Si and B falls in the range of 15 to 35 atom%; 1.5 to 20 atom% of Cr; 0.2 to 10 atom% of at least one element selected from the group consisting of P and C; 30 atom% or less of at least one element selected from the group consisting of Co, Ni, Ta, Nb, Mo, W, V, Mn, Ti, Ai, Cu and Zr; and the balance to make up 100 atom% substantially of Fe, providing that the maximum of Co content is 30 atom% and that of Ni content 20 atom% and the maximum of Ta and Nb contents are 10 atom% each, those of Mo, W, V and Mn contents 5 atom% each, and those of Ti, Aℓ, Cu and Zr 2.5 atom% each.
Claim 17
Dependent Claim
162 words
A thin wire comprised of an amorphous iron-based alloy excelling in amorphous texture forming ability and fatigue property, comprising: 25 atom% or less of Si; 2.5 to 25 atom% of B, providing that the sum of Si and B falls in the range of 15 to 35 atom%; 1.5 to 20 atom% of Cr; 0.2 to 10 atom% of at least one element selected from the group consisting of P and C; 30 atom% or less of at least one element selected from the group consisting of Co, Ni, Ta, Nb, Mo, W, V, Mn, Ti, Ai, Cu and Zr; and the balance to make up 100 atom% substantially of Fe, providing that the maximum of Co content is 30 atom% and that of Ni content 20 atom% and the maximum of Ta and Nb contents are 10 atom% each, those of Mo, W, V and Mn contents 5 atom% each, and those of Ti, Aℓ, Cu and Zr 2.5 atom% each.
Claim 18
Dependent Claim
51 words
A thin wire comprised of an amorphous alloy as claimed in Claim 13, wherein the Si content is 17.5 atom% or less, the B content falls in the range of 5 to 22.5 atom%, and the sum of Si and B contents falls in the range of 17.5 to 32.5 atom%.
Claim 19
Dependent Claim
41 words
A thin wire comprised of an amorphous alloy as claimed in Claim 13, wherein the Cr content falls in the range of 3 to 10 atom% and the P or C content falls in the range of 0.5 to 5 atom%.
Claim 20
Dependent Claim
43 words
A thin wire comprised of an amorphous alloy as claimed in Claim 13, wherein the Cr content falls in the range of 3 to 10 atom% and the sum of P and C contents falls in the range of 1 to 8 atom%.
References Cited (Backward Citations)
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