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:
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:
A conversion adapter to be used for connecting opposed optical connector ferrules having different diameters is formed of an amorphous alloy possessing at least a glass transition region, preferably a glass transition region of not less than 30 K in temperature width. Particularly, the amorphous alloy of M1—M2 system or M1—M2—La system (M1: Zr and/or Hf, M2: Ni, Cu, Fe, Co, Mn, Nb, Ti, V, Cr, Zn, Al, and/or Ga, La: rare earth element) possesses a wide range of &Dgr;Tx and thus can be advantageously used as a material for the conversion adapter. Such a conversion adapter can be manufactured with high mass-productivity by a mold casting method or molding method.
摘要:
A compacted and consolidated aluminum-based alloy material is 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 or Al.sub.a' Ni.sub.b X.sub.c M.sub.d Q.sub.e, where X is one or two elements selected from La and Ce or an Mm; M is Zr or Ti; Q is one or more elements selected from Mg, Si, Cu and Zn, and a, a', b, c, d and e are, in atomic percentages, 84.ltoreq.a.ltoreq.94.8, 82.ltoreq.a'.ltoreq.94.6, 5.ltoreq.b .ltoreq.10, 0.1.ltoreq.c.ltoreq.3, 0.1.ltoreq.d.ltoreq.3, and 0.2.ltoreq.e.ltoreq.2. According to the production process of the invention, powder or flakes obtained by rapidly solidifying are compacted, followed by compressing, forming and consolidating by conventional plastic working operations. The consolidated material has an elongation sufficient to withstand secondary working operations. Moreover, the material retains the excellent properties of its raw material as they are.
摘要:
A method for the production of a cast article having a small hole comprises the steps of setting a linear core member in a cavity of a metal mold, injecting a molten metal into the cavity, and drawing out the core member from the resultant-cast product to form a small hole. A linear core member having a surface film formed by surface coating or by subjecting to a surface treatment is used so that the surface film is partly or as a whole peeled off the linear core member upon drawing it from the cast product, thereby enabling the core member to be drawn from the inside of the cast product. Alternatively, the linear core member is so constructed as to elastically deform in the drawing direction upon drawing it from the cast product to have a diameter smaller than the original diameter.
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:
A method for the production of a cast article having a small hole comprises the steps of setting a linear core member in a cavity of a metal mold, injecting a molten metal into the cavity, and drawing out the core member from the resultant cast product to form a small hole. A linear core member having a surface film formed by surface coating or by subjecting to a surface treatment is used so that the surface film is partly or as a whole peeled off the linear core member upon drawing it from the cast product, thereby enabling the core member to be drawn from the inside of the cast product. Alternatively, the linear core member is so constructed as to elastically deform in the drawing direction upon drawing it from the cast product to have a diameter smaller than the original diameter.
摘要:
A high strength, rapidly solidified alloy consisting of aluminum and, added thereto, additive elements. The mean crystal grain size of the aluminum is 40 to 1000 nm, the mean size of particles of a stable phase or a metastable phase of various intermetallic compounds formed from the aluminum and the additive element and/or various intermetallic compounds formed from the additive elements themselves is 10 to 800 nm, and the intermetallic compound particles are distributed in a volume fraction of 20 to 50% in a matrix consisting of aluminum. The rapidly solidified alloy has an improved strength at room temperature and a high toughness and can maintain the properties inherent in a material produced by the rapid solidification process even when it undergoes a thermal influence during working.
摘要:
High strength, heat resistant aluminum-based alloys have a composition consisting of the following general formula Al.sub.a M.sub.b X.sub.d or Al.sub.a' M.sub.b Q.sub.c X.sub.d, wherein M is at least one metal element selected from the group consisting of Co, Ni, Cu, Zn and Ag; Q is at least one metal element selected from the group consisting of V, Cr, Mn and Fe; X is at least one metal element selected from the group consisting of Li, Mg, Si, Ca, Ti and Zr; and a, a', b, c and d are, in atomic percentages; 80.ltoreq.a.ltoreq.94.5, 80.ltoreq.a'.ltoreq.94, 5.ltoreq.b.ltoreq.15, 0.5.ltoreq.c.ltoreq.3 and 0.5.ltoreq.d.ltoreq.10. In the above specified alloys, aluminum intermetallic compounds are finely dispersed throughout an aluminum matrix and, thereby, the mechanical properties, especially strength and heat resistance, are considerably improved. The aluminum-based alloys of the present invention are very useful as light-weight, high-strength materials, namely, high specific strength materials, both at room temperature and elevated temperatures.
摘要翻译:高强度,耐热的铝基合金具有由以下通式AlaMbXd或Ala'MbQcXd组成的组成,其中M是选自Co,Ni,Cu,Zn和Ag中的至少一种金属元素; Q是选自V,Cr,Mn和Fe中的至少一种金属元素; X是选自Li,Mg,Si,Ca,Ti和Zr中的至少一种金属元素; a,a,b,c和d为原子百分数; 80 = a = 94.5,80 = a' = 94,5 / b = 15,0.5 = c 3和0.5 = d 。 在上述规定的合金中,铝金属间化合物精细地分散在整个铝基体中,从而显着提高机械性能,特别是强度和耐热性。 本发明的铝基合金作为轻质,高强度材料,即高比强度材料,在室温和升高的温度下都是非常有用的。