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Matches 501 - 550 out of 6,778

Document Document Title
WO/2001/048256
The present invention relates to a metal matrix composite based on boron steel containing at least 0.0010 % boron by weight, produced by spray forming, comprising ceramic particles with a hardness greater than 800 HV, method for producin...  
WO/2001/045882
Disclosed are reinforced metal matrix composites and methods of shaping powder materials to form such composites. Articles of manufacture are formed in layers by a laser fabrication process. In the process, powder is melted and cooled to...  
WO/2001/044530
It is possible to generate a desirable form (soft, pliable) of sulfide inclusions in magnesium-treated cast irons. Thermodynamically, MnS and MoS¿2? are not stable in the presence of magnesium. However, by adding magnesium to a cast iro...  
WO/2001/038593
The invention provides a cast iron alloy comprising 3.0 - 3.8 % carbon, 0.6 - 2.5 % silicon, 0.2 - 0.65 % manganese, 0.01 - 0.1 % tin, <0.025 % sulfur, 0.001 - 0.020 % magnesium, 0.1 - 1.2 % copper, 0.04 - 0.2 % chromium, and balance up ...  
WO/2001/035424
A ferrite magnet powder which comprises, as a main phase, La-Co magnetoplumbite type ferrite having a structure obtained by partially substituting La for Sr and Co for Fe and has a composition represented by (1-x)SrO. (x/2)La¿2?O¿3?. (...  
WO/2001/032946
The present invention provides iron-based metallurgical powder compositions and a method of making and using the same. The metallurgical powder compositions of the present invention contain certain amounts of an iron-alloy powder having ...  
WO/2001/031085
Metallic glass / amorphous metal electrodes produced by rapid solidification (i) having a structure that is either amorphous or nanocrystalline, (ii) containing the principal alloying element as Ni, (iii) containing alloying additions of...  
WO/2001/031076
A powder metallurgy article formed of a sulfur-containing, precipitation-hardenable, stainless steel alloy is described. The article has a unique combination of strength, ductility, processability, and machinability. The powder metallurg...  
WO/2001/029274
The invention concerns a method for the manufacturing of a wire-shaped product with high wear resistance. The characteristic feature is that a melt is prepared of a martensitic stainless chromium steel which contains in weight-% 0.6-3.0 ...  
WO/2001/024203
The invention relates to boron-low Nd-Fe-B permanent magnets that have high coercive forces. To this end, the concentrations have to meet the following requirements: 26.9 wt.- % $m(F) [SE]¿eff? $m(F) 33 wt.- %; 2.185 - 0.0442 [SE]¿eff?...  
WO/2001/022439
The invention relates to a soft magnetic material and a method for producing the same. The inventive material is especially suitable for the use in electrovalves. The individual powder particles (11) of a metallic, powdery source compone...  
WO/2001/020049
The invention relates to a method in which particles made of ferrous titanium, niobium or vanadium are dispersed and thermally compacted in a metal matrix powder made from hardenable steel or heat-resistant alloys. Titanium, niobium or v...  
WO/2001/019554
The invention concerns a metal powder composition for warm compaction comprising an iron-based powder and lubricant powder consisting essentially of a polycarboxylic acid amide wax having a melting point peak in the range of 180° to 210...  
WO/2001/020050
An iron-graphite composite powder having a microstructure comprising carbon clusters in a ferrous matrix is disclosed. Also disclosed is a process for preparing the iron-graphite composite powder, a process for preparing sintered article...  
WO/2001/017717
Metallurgical powder compositions are provided that include silicon carbide to enhance the strength, ductility, and machine-ability of the compacted and sintered parts made therefrom. The compositions generally contain a metal powder, su...  
WO/2001/017716
The present invention concerns powder compositions including iron-containing powders, additives, lubricant and flow agents. The powder compositions essentially consist of iron-containing particles having additive particles bonded thereto...  
WO/2001/007671
A method of producing a corrosion resistant ferrous product is disclosed. The product is produced by rolling a heated billet which comprises a mass of mild steel swarf in a stainless steel jacket. Two reducing agents are present in the j...  
WO/2001/007674
A sintered steel and a method for the manufacture thereof are described, the sintered steel being made by a method comprising the steps of providing a first pre-alloyed steel powder having a composition comprising in weight%: C 0.5-2, Cr...  
WO/2001/007666
A process for innocuating copper or tin present in steel by adding to the steel a source of an alloying metal such as aluminium.  
WO/2001/000897
The invention relates to an nickel-poor austenitic steel containing iron and the following components: manganese: less than 9.0 % by weight; chrome: less than 16 and a maximum of 22 % by weight; nitrogen: more than 0.30 and a maximum of ...  
WO/2000/079014
The invention relates to a method for recovering metallic chromium from slag containing chromium oxide, from converter processes such as AOD, MRP, AOD-L, MRP-L, CLU, ASM, Conarc stainless steel or vacuum processes such as VOD, SS-VOD, RH...  
WO/2000/079015
A powder metallurgy manufactured high speed steel with a high content of nitrogen in the form of a body formed through consolidation of alloyed metal power has the chemical composition in weight-%: 1-2.5 C, 1-3.5 N, 0.05-1.7 Mn, 0.05-1.2...  
WO/2000/077268
IVT component, comprising an input and an output disk. Each disk is provided with a raceway and raceways of the input and output disk are faced to each other. The rollers are provided in between. The rollers have a surface engaging the r...  
WO/2000/075387
A non-austempered spheroidal graphite cast iron obtained without austempering, and having a tensile strength of 650 to 850 MPa and an elongation of 7.0 to 14.5%, wherein a fatigue limit of its V-notched material is at least 290 MPa, the ...  
WO/2000/073527
The invention relates to a steel with a high resistance to wear and tear and corrosion which is produced by spray deposition and is composed of the following (in percent by weight): C: 0.5 - 2.5 %, Si: $m(F) 1.0 %, Mn: $m(F) 1.0 %, P: $m...  
WO/2000/073528
The invention relates to a nickel-poor austenitic steel which contains iron and the following components: less than 17.0 wt.- % manganese; more than 21.0 and not more than 26.0 wt.- % chromium; less than 1.50 wt.- % molybdenum; more than...  
WO/2000/073001
The present invention provides a method of making metallurgical powder compositions and a method of using the metallurgical powder compositions produced. The method of the present invention includes providing a prealloy powder containing...  
WO/2000/071759
In one aspect, the invention encompasses a method of forming a steel. A metallic glass is formed and at least a portion of the glass is converted to a crystalline steel material having a nanocrystalline scale grain size. In another aspec...  
WO/2000/071769
In the invention, a stainless steel powder of the desired composition is either directly mixed with a h-BN powder, compressed and sintered of the stainless steel powder is compressed, impregnated with a solution containing h-BN and then ...  
WO/2000/071768
An electrical resistance element consists mainly of a silicide phase according to the formula Mo(Si¿1-x?Al¿x?)¿2?, which phase forms alumina on the surface of the element. The element is intended to be used in connection with sinterin...  
WO/2000/068469
A composite metal object comprises ductile crystalline metal particles in an amorphous metal matrix. An alloy is heated above its liquidus temperature. Upon cooling from the high temperature melt, the alloy chemically partitions, forming...  
WO/2000/068139
Composite materials of the invention, which include a gas-tight ceramic, a porous metallic support, and an interfacial zone therebetween eliminate the need for mechanical seals between two such dissimilar materials. Oxygen ion-conducting...  
WO/2000/066795
The invention is a malleable iron comprising about 250 to 400 nodules of graphite per square millimeter as observed in a photomicrograph at 100x, and a Brinell hardness of about 195 to 550 BHN. Preferably, the malleable iron further comp...  
WO/2000/066797
The present invention relates to a metal matrix-composite material intended particularly for piston rings, said material being produced by mixing two different powder materials and transformation of said powders into an essentially compa...  
WO/2000/065108
The invention relates to a method for processing steel slags and optionally ferriferous materials such as e.g. electric furnace slags, converter slags, dust produced during the manufacturing of steel, rolling mill cinders or secondary me...  
WO/2000/062960
A re-compression molded body of a metallic powder molding material having an excellent deformability suitable for obtaining high-mechanical-strength mechanical parts made from sintered metals and a sintered body obtained from the re-comp...  
WO/2000/058043
Blank for a gun barrel, consisting of a steel bar, which bar, in one or more hot working steps, has been repeatedly wrung about its own longitudinal axis.  
WO/2000/048209
A permanent magnet having substantially stable magnetic properties is disclosed having as the active magnetic component a sintered product of compacted particulate iron-boron-rare earth intermetallic material, said sintered product havin...  
WO/2000/047786
A permanent magnet for an MRI scanner is made by removing extraneous elements from an ore containing rare earth elements to leave elements Pr and Nd therein and then selectively stripping therefrom a portion of the element Nd as a by-pro...  
WO/2000/044517
A relatively high carbon, water-atomized steel shot is softened via annealing to render it suitable for ballistic use. The annealing preferably includes decarburization from a surface layer (120) or throughout (124) and preferably provid...  
WO/2000/045397
A rare earth permanent magnet alloy having a composition expressed as R¿x?F¿100-(x+y+z+m+n)?B¿y?T¿z?M¿m?D¿n?. In this formula, R is one or more of rare earthy elements, such as neodymium, lanthanum, cerium, dysprosium and/or praseo...  
WO/2000/044956
A tool steel alloy having a unique combination of hardness and toughness is disclosed. The alloy contains, in weight percent, about: wt.% C 1.85-2.30, Mn 0.15-1.0, Si 0.15-1.0, P 0.030 max., S 0-0.30, Cr 3.7-5.0, Ni+Cu 0.75 max., Mo 1.0 ...  
WO/2000/039353
An iron-based powder blend for use in powder metallurgy, which comprises an atomized alloy iron powder, 0.01 to 1.0 % in terms of B of one or more of compounds containing B, 1 to 10 % of Ni powder, 1 to 6 % of Cu powder and 1.3 to 3.0 % ...  
WO/2000/037698
The present invention provides a possibility to evaluate cooling curves recorded in near-eutectic cast iron melts. The curves are evaluated by determining the net amount of heat generated in the melt in the centre of the sample to the me...  
WO/2000/038201
Ferromagnetic powder for a coating type magnetic recording medium, containing mainly iron, and over 5 to 50 at.% of Co., 0.1 to 30 at.% of Al, 0.1 to 10 at.% of rare earth element (including Y), less than 0.05 wt% of 1a group element in ...  
WO/2000/037699
By studying heat transfer in a sample vessel containing a sample of molten cast iron, it is possible to carry out accurate predictions of the microstructure in which the molten cast iron sample will solidify. This method is also highly s...  
WO/2000/032830
A process of forming a sintered article of powder metal comprising blending graphite, Si carbide and lubricant, with pre-alloyed iron base powder; pressing said blended mixture to a shaped article; sintering said article in a reduced atm...  
WO/2000/030770
Steel powder for use in case hardenable steels is provided. The steel powder is made from a plurality of pre-alloyed iron-molybdenum particles. Each of the particles has from about 1.5 to about 3.5 percent by weight of molybdenum and hav...  
WO/2000/029631
The invention relates to a method for producing soft-magnetic sintered components, according to which first the shape of a green body is produced by pressing and said green body is then sintered. As starting materials (A, B, C) for press...  
WO/2000/026427
The invention relates to a steel with a high wear resistance, high hardness and good notched bar impact strength, useful for the manufacture of products, in the use of which at least some of said features are desirable, preferably for th...  

Matches 501 - 550 out of 6,778