摘要:
A process for producing an amorphous alloy material characterized by imparting ductility to an amorphous alloy having a supercooled liquid region by giving a prescribed amount of strain at a prescribed strain rate to the alloy in the glass transition temperature region of the alloy. The amorphous alloy may be in the form of spherical or irregular-shaped powders or thin ribbons or in the form of primary consolidated shapes thereof or an amorphous alloy casting. The amount of strain and strain rate are preferably 50% or greater and 2.times.10.sup.-2 /sec or higher, respectively, and the worked amorphous alloy material is preferably allowed to cool in a furnace or spontaneously. Suitable examples of the amorphous alloy to be employed include Al-TM-Ln, Mg-TM-Ln, Zr-TM-Al and Hf-TM-Al alloys, wherein TM is a transition metal element and Ln is a rare earth metal element. The thus obtained amorphous alloy is greatly improved in the prevention of embrittlement in hot working peculiar to the alloy.
摘要:
A process for producing an amorphous alloy forming material having at least 50% by volume of an amorphous phase which comprises a first-stage treatment in which an amorphous alloy is maintained in a temperature range below the glass transition temperature, a second-stage treatment in which the alloy is maintained in a temperature range in the supercooled liquid region for a prescribed period of time, and quenching of the alloy thus treated. The process improves the embrittlement peculiar to amorphous alloys subjected to thermal hysteresis for a long time and provides amorphous alloys having excellent strength, ductility and thermal plastic workability.
摘要:
A metal-made high-precision gear and a gear mechanism are disclosed. The precision gear is made of a novel material which does not exist in conventional materials for precision gears, including resins and tool steels, has high hardness, strength and excellent surface smoothness, and is superior in workability. In the precision gear which is formed of an amorphous metal alloy having a ternary, quaternary or higher composition containing iron group elements, such as Fe, Co, Ni, and Cu, Ti, Zr, Hf, as the principal elements, the precision gear whose module is 0.2 or less is made of the amorphous metal alloy having a disordered structure which does not have a fixed regularity and whose XRD pattern is a halo pattern, namely exhibits a broad peak.
摘要:
A high-strength aluminum-based alloy consisting essentially of a composition represented by the general formula: Al.sub.bal Mn.sub.a M.sub.b or Al.sub.bal Mn.sub.a M.sub.b TM.sub.c wherein M represents one or more members selected from the group consisting of Ni, Co, Fe and Cu, TM represents one or more members selected from the group consisting of Ti, V, Cr, Y, Zr, La, Ce and Mm and a, b and c each represent an atomic percent (at %) in the range of 2.ltoreq.a.ltoreq.5, 2.ltoreq.b.ltoreq.6 and 0
摘要翻译:基本上由以下通式组成的高强度铝基合金:AlbalMnaMb或AlbalMnaMbTMc,其中M表示选自Ni,Co,Fe和Cu中的一种或多种,TM表示选择的一种或多种成员 来自由Ti,V,Cr,Y,Zr,La,Ce和Mm和+ E组成的组,uns a + EE,+ E,uns b + EE和+ E,uns c + EE各自表示原子百分比 at%)在2 = a = 5,2 / b = 6和0
摘要:
A compacted and consolidated material of an aluminum-based alloy obtained by compacting and consolidating a rapidly solidified material having a composition represented by the general formula: Al.sub.a Ni.sub.b X.sub.c M.sub.d, Al.sub.a Ni.sub.b X.sub.c Q.sub.e or Al.sub.a 'Ni.sub.b X.sub.c M.sub.d Q.sub.e, wherein X represents at least one element selected from the group consisting of La, Ce, Mm (misch metal), Ti and Zr; M represents at least one element selected from the group consisting of V, Cr, Mn, Fe, Co, Y, Nb, Mo, Hf, Ta and W; Q represents at least one element selected from the group consisting of Mg, Si, Cu and Zn; and a, a', b, c, d and e are, in atomic percentages, 85.ltoreq.a.ltoreq.94.4, 83.ltoreq.a.ltoreq.94.3, 5.ltoreq.b.ltoreq.10, 0.5.ltoreq.c.ltoreq.3, 0.1.ltoreq.d.ltoreq.2 and 0.1.ltoreq.e.ltoreq.2. The material is produced by melting a material having the above specified composition, quench-solidifying the melt, compacting the resultant powder or flakes, and subjecting the thus-compacted material to press forming and consolidating by a conventional plastic working technique.
摘要翻译:通过压实和固结具有由通式Ala NibXcMd,AlaNibXcQe或Ala'NibXcMdQe表示的组成的快速凝固材料获得的铝基合金的压实和固结材料,其中X表示选自以下的至少一种元素: La,Ce,Mm(稀土金属),Ti和Zr; M表示选自V,Cr,Mn,Fe,Co,Y,Nb,Mo,Hf,Ta和W中的至少一种元素; Q表示选自Mg,Si,Cu和Zn中的至少一种元素; 和a,a',b,c,d和e以原子百分比计,85 = 94.4,83 = a = 94.3,5 / b = 10,0.5 = c = 3,0.1 = d = 2和0.1 = e = 2。 该材料通过熔化具有上述特定组成的材料,淬火固化熔体,压实所得到的粉末或薄片,以及通过常规的塑性加工技术对如此压实的材料进行压制成型和固化。
摘要:
The present invention provides a high-strength, abrasion resistant aluminum alloy having a composition represented by the general formula Al.sub.a M.sub.b X.sub.c Z.sub.d Si.sub.e, wherein M is at least one element selected from the group consisting of Fe, Co, and Ni; X is at least one element selected from the group consisting of Y, La, Ce and Mm (mischmetal); Z is at least one element selected from the group consisting of Mn, Cr, V, Ti, Mo, Zr, W, Ta and Hf; and a, b, c, d and e are all expressed by atom percent and range from 50 to 89 %, 0.5 to 10 %, 0.5 to 10 %, 0 to 10 % and 10 to 49 %, respectively, with the proviso that a+b+c+d+e =100 %, the alloy containing fine Si precipitates and fine particles of intermetallic compounds dispersed in an aluminum matrix. The aluminum alloy may further contain not greater than 5 % of at least one element selected from the group consisting of Cu, Mg, Zn and Li. The alloy can be warm-worked at 300.degree.-500.degree. C. and is useful for various industrial applications where high abrasion resistance and high strength are required.
摘要翻译:本发明提供具有由通式AlaMbXcZdSie表示的组成的高强度耐磨铝合金,其中M是选自Fe,Co和Ni中的至少一种元素; X是选自Y,La,Ce和Mm(混合稀土)中的至少一种元素; Z是选自Mn,Cr,V,Ti,Mo,Zr,W,Ta和Hf中的至少一种元素; 和a,b,c,d和e均以原子百分比表示,分别为50至89%,0.5至10%,0.5至10%,0至10%和10至49%,条件是 a + b + c + d + e = 100%,含有微细Si析出物的合金和分散在铝基体中的金属间化合物的细颗粒。 铝合金还可以含有不大于5%的选自Cu,Mg,Zn和Li中的至少一种元素。 该合金可在300-500℃下加热,适用于需要高耐磨性和高强度的各种工业应用。
摘要:
An Al-based alloy represented by the general formula Al.sub.bal Ti.sub.a M.sub.b and Al.sub.bal Ti.sub.a M.sub.b Q.sub.c wherein M represents at least one element selected from among V, Cr, Mn, Co, Cu, Y, Zr, Nb, Mo, Hf, Ta and W; Q represents at least one element selected from Mg and Si; and a, b and c are, in percentages by weight, 7.ltoreq.a.ltoreq.20, 0.2.ltoreq.b.ltoreq.20 and 0.1.ltoreq.c.ltoreq.5. A compacted and consolidated material is produced by melting a material having the above alloy composition, rapidly solidifying the melt into powder or flakes; compacting the resultant powder or flakes; and subjecting the compacted powder or flakes to press forming and consolidating by a conventional plastic working. The aluminum-based alloy and the compacted and consolidated material thereof have a high strength, a good ductility and an excellent strength at high temperatures.
摘要:
A high-strength and high-toughness aluminum-based alloy having a composition represented by the general formula: Al.sub.a Ni.sub.b X.sub.c M.sub.d Q.sub.e, wherein X is at least one element selected from the group consisting of La, Ce, Mm, Ti and Zr; M is at least one element selected from the group consisting of V, Cr, Mn, Fe, Co, Y, Nb, Mo, Hf, Ta and W; Q is at least one element selected from the group consisting of Mg, Si, Cu and Zn; and a, b, c, d and e are, in atomic percentage, 83.ltoreq.a.ltoreq.94,3, 5.ltoreq.b.ltoreq.10, 0.5.ltoreq.c.ltoreq.3, 0.1.ltoreq.d.ltoreq.2, and 0.1.ltoreq.e.ltoreq.2. The aluminum-based alloy has a high strength and an excellent toughness and can maintain the excellent characteristics provided by a quench solidification process even when subjected to thermal influence at the time of working. In addition, it can provide an alloy material having a high specific strength by virtue of minimized amounts of elements having a high specific gravity to be added to the alloy.
摘要翻译:具有由通式AlaNibXcMdQe表示的组成的高强度和高韧性的铝基合金,其中X是选自La,Ce,Mm,Ti和Zr中的至少一种元素; M是选自V,Cr,Mn,Fe,Co,Y,Nb,Mo,Hf,Ta和W中的至少一种元素; Q是选自Mg,Si,Cu和Zn中的至少一种元素; 和a,b,c,d和e分别为原子百分比为83 =94,3,5≤b≤10,0.5≤c≤3,0.1, / = d = 2和0.1 = e = 2。 铝基合金具有高强度和优异的韧性,并且即使在加工时受到热影响,也可以保持由淬火凝固过程提供的优异特性。 此外,通过最小量的具有高比重的元素可以提供具有高比强度的合金材料,以添加到合金中。
摘要:
An Al-based alloy represented by the general formula Al.sub.bal Ti.sub.a M.sub.b and Al.sub.bal Ti.sub.a M.sub.b Q.sub.c wherein M represents at least one element selected from among V, Cr, Mn, Co, Cu, Y, Zr, Nb, Mo, Hf, Ta and W; Q represents at least one element selected from Mg and Si; and a, b and c are, in percentages by weight, 7.ltoreq.a.ltoreq.20, 0.2.ltoreq.b.ltoreq.20 and 0.1.ltoreq.c.ltoreq.5. A compacted and consolidated material are produced by melting a material having the above alloy composition, rapidly solidifying the melt into powder or flakes; compacting the resultant powder or flakes; and subjecting the compacted powder or flakes to press forming and consolidating by a conventional plastic working. The aluminum-based alloy and the compacted and consolidated material thereof have a high strength and a good ductility and an excellent strength at high temperature.
摘要:
A nickel-free white copper alloy represented by the general formula: CuaZnbMncAld or CuaZnbMncAldXe, wherein X is at least one element selected from the group consisting of Si, Ti and Cr; b, c, d and e are 0.5≦b