摘要:
A cast magnetic refrigerant having a composition represented byLn.sub.a A.sub.b M.sub.cwherein Ln is at least one element selected from the group consisting of Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm and Yb; A is any one of elements of Al and Ga; M is at least one element selected from the group consisting of Fe, Co, Ni, Cu and Ag; each of a, b and c is atomic %, with the proviso that a+b+c=100 atomic %, 20 atomic % .ltoreq.a.ltoreq.80 atomic %, 5 atomic % .ltoreq.b .ltoreq.50 atomic %, 5 atomic % .ltoreq.c.ltoreq.60 atomic %, and having an amorphous structure with a difference .DELTA.T of 10K or more between a glass transition temperature Tg and a crystallization temperature Tx.
摘要翻译:具有由LnaAbMc表示的成分的铸造磁性制冷剂,其中Ln是选自由Ce,Pr,Nd,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm和Yb组成的组中的至少一种元素; A是Al和Ga的元素中的任何一种; M是选自Fe,Co,Ni,Cu和Ag中的至少一种元素; a,b和c中的每一个是原子%,条件是a + b + c = 100原子%,20原子% = 80原子%,5原子% b = 50 原子%,5原子% = c <60原子%,并且在玻璃化转变温度Tg和结晶温度Tx之间具有10K或更高的差异ΔTA的非晶结构。
摘要:
An aluminum-alloy, which is wear-resistant and does not wear greatly the opposed cast iron or steel, and which can be warm worked. The alloyings the following composition and structure. Composition: Al.sub.a Si.sub.b M.sub.c X.sub.d T.sub.e (where 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, Ce, La and Mm (misch metal); Y is at least one element selected from the group consisting of Mn, Cr, V, Ti, Mo, Zr, W, Ta and Hf; a=50-85 atomic %, b=10-49 atomic %, c=0.5-10 atomic %, d=0.5-10 atomic %, e=0-10 atomic %, and a+b+c+d+e=100 atomic %. Structure: super-saturated face-centered cubic crystals and fine Si precipitates.
摘要翻译:铝合金,耐磨,不会大大磨损相对的铸铁或钢,可以加热。 合金的组成和结构如下。 组成:AlaSibMcXdTe(其中M是选自Fe,Co和Ni中的至少一种元素; X是选自Y,Ce,La和Mm(混合稀土金属)中的至少一种元素; Y是 选自Mn,Cr,V,Ti,Mo,Zr,W,Ta和Hf中的至少一种元素; a = 50-85原子%,b = 10-49原子%,c = 0.5-10原子 %,d = 0.5-10原子%,e = 0-10原子%,a + b + c + d + e = 100原子%结构:超饱和的面心立方晶体和微细的Si析出物。
摘要:
Disclosed herein is a process for forming an amorphous alloy material capable of showing glass transition, which comprises holding the material between frames arranged in combination; and heating the material at a temperature between its glass transition temperature (Tg) and its crystallization temperature (Tx) and, at the same time, producing a pressure difference between opposite sides of the material, whereby the material is brought into close contact against a forming mold disposed on one side of the material. As an alternative, the forming mold is brought into close contact against the amorphous material in a direction opposite to the pressing direction for the amorphous material. By the above processes, precision-formed products of amorphous alloys can be manufactured and supplied at low cost. These formed amorphous alloy products can be used as mechanical structure parts and components of high strength and high corrosion resistance, various strength members, electronic parts, arts and crafts, original printing plates, or the like.
摘要:
A solidified amorphous alloy material is produced from a melt of its desired metal material. A melt feeding route is provided with a first-stage quenching zone. The melt is quenched to a predetermined temperature in the first-stage quenching zone. The thus-quenched melt is then introduced into a second-stage quenching and solidification zone, whereby the melt is cooled further and solidified into a solidified material having an amorphous phase.
摘要:
Amorphous alloys containing carbon as a metalloid having the amorphous alloy forming ability are low in the production cost because of use of carbon as the metalloid, do not generate harmful gas during production and are easily produced. These alloys have high strength, hardness, crystallizing temperature, embrittling temperature and corrosion resistance. Alloys having high permeability, non-magnetic property or low magnetostriction are obtained depending upon the component composition and the alloys are utilized for various uses depending upon these properties.
摘要:
A magneto-impedance element comprises an alloy composed of at least one of Fe, Co and Ni. The alloy has a mixed texture of an amorphous phase and a fine crystalline phase having an average crystal grain size of 50 nm or less. The magneto-impedance element shows a change in impedance in response to an external magnetic field by applying an alternating current. The magneto-impedance element is applied to an azimuth sensor, an autocanceler, or a magnetic head.
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和a + b + c = 30-70。 由结晶点Tx和玻璃化转变点Tg之间的差异表示的Zr合金的过冷液相中的差温区域DELTA T(= Tx-Tg)优选为100K以上。 所获得的非晶合金具有横截面大的棒状或管状,塑性加工性优异。
摘要:
The present invention provides an Fe-base soft magnetic alloy and a laminated magnetic core formed by using the alloy which contains Fe as a main component and at least one element M and B selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Mo and W, in which at least 50% of the crystalline structure comprises fine crystalline grains having an average crystal grain size of 30 nm or less and a body-centered cubic structure, and the fracture strain at 300.degree. C. or less is 1. The ratios of the components Fe, and elements M and B are 75 to 93 atomic %, 4 to 9 atomic % and 0.5 to 18 atomic %, respectively. The alloy may contain other additive elements such as Cr, Ru, Hr, Ir, Si, Al, Ge, Ga and the like.
摘要:
A hard thin film having fine crystalline ceramic particles dispersed in a metallic matrix phase is disclosed. The production of the film is effected by first depositing a substantially amorphous film on a substrate and then heat-treating the deposited film. Deposition of the film on the substrate is carried out by using a source of evaporation having a composition represented by the general formula: Al.sub.a M.sub.b, wherein M stands for at least one element selected from the group consisting of Ti, Ta, V, Cr, Zr, Nb, Mo, Hf, W, Mn, Fe, Co, Ni, and Cu and "a" and "b" respectively stand for atomic % in the ranges of 60.ltoreq.a.ltoreq.98.5 and 1.5.ltoreq.b.ltoreq.40, providing a+b=100. Deposition is effected by a physical vapor deposition process in an atmosphere of an inert gas containing a reaction gas while controlling the feed rate of the reaction gas into a chamber in such a manner that the partial pressure of the react/on gas is kept constant or varied continuously or stepwise. By this method, there can be obtained a hard composite film having fine ceramic particles dispersed in a metallic matrix phase or a dense, hard, and composite film having a composition and structure obliquely varied from a substantially crystalline metallic phase to a crystalline ceramic phase in the direction of thickness of the film.
摘要翻译:公开了一种具有分散在金属基体相中的细晶体陶瓷颗粒的硬质薄膜。 通过首先在基板上沉积基本上非晶的膜然后对沉积的膜进行热处理来实现膜的制备。 通过使用具有由通式AlaMb表示的组成的蒸发源进行膜的沉积,其中M表示选自Ti,Ta,V,Cr,Zr中的至少一种元素 ,Nb,Mo,Hf,W,Mn,Fe,Co,Ni和Cu,“a”和“b”分别表示60≤a≤98.5的范围内的原子% b = 40,提供+ b = 100。 通过在包含反应气体的惰性气体的气氛中的物理气相沉积工艺进行沉积,同时将反应气体的进料速率控制在室内,使得反应/导入气体的分压保持恒定,或 连续或逐步变化。 通过该方法,可以获得具有分散在金属基体相中的细微陶瓷颗粒的硬质复合膜或致密的,硬的和复合的膜,其具有从基本上结晶的金属相到结晶陶瓷相倾斜变化的组成和结构 膜的厚度方向。
摘要:
A high-strength aluminum-based alloy consisting of a composition represented by the general formula: Al.sub.bal Q.sub.a M.sub.b X.sub.c, wherein Q is at least one element selected from the group consisting of Mn and Cr; M is at least one element selected from the group consisting of Co, Ni, and Cu; X is at least one of rare earth elements including Y, or Misch metal (Mm); and a, b and c are, in atomic percentages, 1.ltoreq.a.ltoreq.7, 0.5.ltoreq.b.ltoreq.5, and 0