摘要:
The present invention provides an amorphous alloy containing at least one element of Fe, Co, and Ni as a main component, at least one element of Zr, Nb, Ta, Hf, Mo, Ti and V, and B, wherein the temperature width &Dgr;Tx of a supercooled liquid region expressed by the equation &Dgr;Tx=Tx−Tg (wherein Tx indicates the crystallization temperature, and Tg indicates the glass transition temperature) is 20° C. or more. The amorphous alloy has excellent soft magnetic properties and high hardness, and can suitably be used for a transformer, a magnetic head, a tool, etc.
摘要:
The present invention provides Cu-base amorphous alloys containing an amorphous phase of 90% or more by volume fraction. The amorphous phase has a composition represented by the formula: Cu100-a-b(Zr+Hf)aTib or Cu100-a-b-c-d(Zr+Hf′)aTibMcTd, wherein M is one or more elements selected from Fe, Cr, Mn, Ni, Co, Nb, Mo, W, Sn, Al, Ta and rare earth elements, T is one or more elements selected from the group consisting of Ag, Pd, Pt and Au, and a, b, c and d are atomic percentages falling within the following ranges: 5≦a≦55, 0≦b≦45, 30≦a+b≦60, 0.5≦c≦5, 0≦d≦10. The Cu-base amorphous alloy has a high glass-forming ability as well as excellent mechanical properties and formability, and can be formed as a rod or plate material with a diameter or thickness of 1 mm or more and an amorphous phase of 90% or more by volume fraction, through a metal mold casting process.
摘要翻译:本发明提供含有90体积%以上的非晶相的Cu基非晶合金。 非晶相具有由式:Cu100-ab(Zr + Hf)aTib或Cu100-abcd(Zr + Hf')aTibMcTd表示的组成,其中M是选自Fe,Cr,Mn,Ni,Co的一种或多种元素 ,Nb,Mo,W,Sn,Al,Ta和稀土元素,T是选自Ag,Pd,Pt和Au中的一种或多种元素,a,b,c和d是落入 以下范围:5 @ a @ 55,0 @ b @ 45,30 @ a + b @ 60,0.5 @ c @ 5,0 @ d @ 10。 Cu基非晶合金具有高的玻璃形成能力以及优异的机械性能和成形性,并且可以形成为直径或厚度为1mm以上且非晶相为90%的棒材或板材,或 更多的体积分数,通过金属模具铸造过程。
摘要:
An amorphous Zr alloy has a composition expressed as Zr—Ala—Nib—Cuc—Md. M is one or more elements selected from Ti, Nb and Pd. The a, b, c, and d are amounts in atomic %, and satisfy the following formulas. 5≦a≦0; 30≦b+c≦50; b/c≦1/3; and 0
摘要翻译:无定形Zr合金具有以Zr-Ala-Nib-Cuc-Md表示的组成。 M是选自Ti,Nb和Pd中的一种或多种元素。 a,b,c和d为原子%的量,满足下式。 5 <= a <= 0; 30 <= b + c <= 50; b / c <= 1/3; 和0
摘要:
An objective of the present invention is to form a hyper-elastic flange integrally within a shield case body around a periphery thereof while decreasing an occupied area for grounding. The shield case 2 according to the present invention is disposed to cover electronic parts 6 on a circuit board 1, and which has a flange 7 formed integrally therewith so as to contact with a metallic ground line 3 on the circuit board 1. The flange 7 is elastically deformed to be grounded, thus a leakage of electromagnetic waves to the outside of the shield case 2 is prevented. The flange 7 is made of metallic glass. By forming the flange 7 from metallic glass, a displacement due to viscous flowing on the atomic level, which is different from a plastic deformation, can be utilized, and thus a high precision flange can be formed without a spring-back.
摘要:
An objective of the present invention is to form a hyper-elastic flange integrally within a shield case body around a periphery thereof while decreasing an occupied area for grounding. The shield case 2 according to the present invention is disposed to cover electronic parts 6 on a circuit board 1, and which has a flange 7 formed integrally therewith so as to contact with a metallic ground line 3 on the circuit board 1. The flange 7 is elastically deformed to be grounded, thus a leakage of electromagnetic waves to the outside of the shield case 2 is prevented. The flange 7 is made of metallic glass. By forming the flange 7 from metallic glass, a displacement due to viscous flowing on the atomic level, which is different from a plastic deformation, can be utilized, and thus a high precision flange can be formed without a spring-back.
摘要:
A high-strength amorphous alloy represented by the general formula: XaMbAlcTd (wherein X is at least one element selected between Zr and Hf; M is at least one element selected from the group consisting of Ni, Cu, Fe, Co and Mn; T is at least one element having a positive enthalpy of mixing with at least one of the above-mentioned X, M and Al; and a, b, c and d are atomic percentages, provided that 25≦a≦85, 5≦b ≦70, 0
摘要翻译:由通式XaMbAlcTd(其中X是选自Zr和Hf中的至少一种元素; M是选自Ni,Cu,Fe,Co和Mn中的至少一种元素)的高强度非晶合金; T 是具有与上述X,M和Al中的至少一种具有正焓混合的至少一种元素; a,b,c和d是原子百分数,条件是25 <= 85 < = b <= 70,0
摘要:
The present invention provides an amorphous alloy containing at least one element of Fe, Co, and Ni as a main component, at least one element of Zr, Nb, Ta, Hf, Mo, Ti and V, and B, wherein the temperature width .DELTA.Tx of a supercooled liquid region expressed by the equation .DELTA.Tx=Tx-Tg (wherein Tx indicates the crystallization temperature, and Tg indicates the glass transition temperature) is 20.degree. C. or more. The amorphous alloy has excellent soft magnetic properties and high hardness, and can suitably be used for a transformer, a magnetic head, a tool, etc.
摘要:
A hard magnetic material of the present invention contains Fe as a main component and further contains elements R and L, and B. Not less than 60% of the structure of the hard magnetic material is composed of a fine crystalline phase having an average grain size of not more than 100 nm and the rest is composed of an amorphous phase. The fine crystalline phase essentially consists of bcc-Fe and contains at least R.sub.2 Fe.sub.14 B.sub.1.
摘要:
Orthodontic appliances in accordance with the present invention are formed from amorphous alloys having a supercooling liquid region. The appliances have high corrosion resistance, high durability and high strength. The appliances are particularly useful when changes and adjustments in the orthodontic state become necessary in the course of orthodontic treatment. The present invention also provides improvements in the base surfaces of orthodontic appliances adapted to be bonded to tooth surfaces. The appliances can consequently be securely affixed to tooth surfaces.
摘要:
An alloy material 4 received in a melting hearth 1 is melted by high-density energy supplied from a heat source 5. The molten alloy is transferred to a forced-cooled die 3 having a cavity 2 defining the profile of a product, and quenched to an amorphous state. The alloy has the composition represented by the general formula of Zr.sub.100-a-b-c A.sub.a B.sub.b C.sub.c (wherein the mark A represents one or more elements selected from Ti, Hf, Al and Ga, the mark B represents one or more elements selected from Fe, Co, Ni and Cu, the mark C represents one or more elements selected from Pd, Pt, Au and Ag, and the marks a-c represent the atomic ratios of respective elements A-C under the conditions of a=5-20, b=15-45, c.ltoreq.10 and a+b+c=30-70. The differential temperature region .DELTA.T (=T.sub.x -T.sub.g) in the supercooled liquid phase of the Zr alloy represented by the difference between the crystallization point T.sub.x and the glass transition point T.sub.g, is preferably 100 K or more. The obtained amorphous alloy has a rod-shaped or tubular profile having a large cross section and being excellent in plastic workability.
摘要翻译:容纳在熔化炉床1中的合金材料4由从热源5供给的高密度能量熔化。熔融合金被转移到具有限定产品轮廓的空腔2的强制冷却模具3中, 无定形状态。 该合金具有由通式Zr100-ab-cAaBbCc表示的组成(其中,标记A表示选自Ti,Hf,Al和Ga中的一种或多种元素,标记B表示选自Fe,Co, Ni和Cu,标记C表示选自Pd,Pt,Au和Ag中的一种或多种元素,标记ac表示在a = 5-20,b = 15-45的条件下各元素AC的原子比, c + = 10-70,a + b + c = 30-70,Zr合金过冷液相中的温差区域DELTA T(= Tx-Tg)由结晶点Tx和玻璃化转变温度 点Tg优选为100K以上,得到的非晶合金具有截面积大,塑性加工性优异的棒状或管状。