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7445678 |
Disclosed is a method of producing maraging steel, which includes producing a consumable electrode for vacuum remelting; and subjecting the consumable electrode to the vacuum remelting. The consumable electrode contains not less 5 ppm Mg...
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7442261 |
In a method of producing an iron-based alloy containing chromium carbide, pieces of cemented carbide are added to an iron-based melt containing carbon, e.g. cast iron. Chromium, which regulates the solution of WC into the melt, is also a...
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6921497 |
The present invention relates to new compositions of matter, particularly metals and alloys, and methods of making such compositions. The new compositions of matter exhibit long-range ordering and unique electronic character.
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6572792 |
A composition of matter includes a changed underlying electronic structure of a mass or matter containing a ‘p’, ‘d’ and/or ‘f’ atomic orbital. The structural change is accompanied by changes in energy or mass or both.
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6423158 |
A roller bearing which can sufficiently ensure an endurance life of rollers even under conditions where debris contamination and temperature rise are large. As the material for an outer ring, inner ring and tapered rollers, a steel in wh...
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6406557 |
During the treatment of electrical steel, a careful combination of heat treatment of the slab with a specific primary recrystallization and nitriding treatment allows for control of the distribution, quantity and dimensions of precipitat...
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6361621 |
The production of grain-oriented electrical steel sheets is disclosed wherein grain growth in the steel is inhibited by a method comprising the regulation of the content of sulfur and manganese in the steel strp and the cold rolled strip...
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6361620 |
In the production of grain-oriented electrical steel strip, the grain growth inhibition is controlled by balancing the copper, aluminum and carbonium content in order to control the type and quantity of precipitated second phases and obt...
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6325866 |
A process for the production of grain oriented silicon steel sheet which provides an optimization of the production of conventional, grain oriented silicon steel strips, by the use of an appropriate synergistic combination of the composi...
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5772795 |
A method of producing high strength steel sheet and formed articles fabricated from the sheet and containing about 0.01-0.3 free and uncombined atomic percent Ti, Nb or V as strengthening element, by hot rolling or hot rolling plus cold ...
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5505791 |
The present invention relates to nickel alloy products with their surfaces nitrided and hardened which are formed by pressure casting nickel alloy material, and nitrided and hardened layers are formed in surface layers. Since the nitride...
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5424028 |
A case carburizable stainless steel alloy intended to be used at operating temperatures up to 700° F. The alloy is able to achieve and maintain a high surface hardness when carburized and heat treated and combines high fracture toughnes...
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5395459 |
In a preferred method, a molten alloy of samarium and iron is formed with a proportion of about 1:4 to about 1:9 of samarium to iron. The molten alloy is then quenched in a non-oxidizing environment at a rate sufficient to form a solid c...
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4773947 |
A case hardening steel which consists essentially of 0.03-0.2 wt % of C, 1.0-3.0 wt % of Si, 0.2-2.0 wt % of Mn, 0.05-0.5 wt % of V and the balance of Fe. The primary advantage of this steel is fineness of grain size after carburizing at...
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4612045 |
A method for making an aluminum nitride powder comprises atomizing a molten aluminum into a nitriding atmosphere of N 2 gas of elevated temperature and solidifying the finely divided liquid particles of aluminum which have been nitrided.
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4540447 |
This disclosure relates to swage type fasteners including a pin having a plurality of combination locking and breakneck grooves and a collar adapted to be swaged into the grooves with one of the grooves acting as a breakneck whereby the ...
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4482399 |
A nitrided cast iron product comprising cast iron matrix material and graphite particles distributed in the matrix material, a nitrided layer formed in a surface of the cast iron product and having gaps between the graphite particles and...
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4046601 |
A method for internal strengthening of articles formed from deep drawing quality low carbon steel strip or sheet containing about 0.02 to about 0.3% titanium in solution, up to about 0.3% columbium in solution, columbium when present bei...
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3772004 |
A heat-treatable alloy useable as a tool material wherein a uranium (U) base contains from about 2.0 to about 15.0 percent by weight niobium (Nb), and from about 0.05 to about 2.0 percent by weight carbon (C).
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3661656 |
The product comprises a tough core and at least one hard, carburized surface layer, the core containing 0.01-0.04% C, 2.2-6.0% Mn, 0.5-2.0% Si, up to 0.2% acid-soluble Al, 0.01-0.5% Nb and/or V, with Nb being replaceable by Ta, up to 0.0...
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3291653 |
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3180726 |
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3012879 |
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2585372 |
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2067896 |
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1958109 |
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1694251 |
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1537839 |
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RE03222 |
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1303727 |
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0887286 |
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0831858 |
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0774959 |
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0580285 |
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0523620 |
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0092220 |
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0084644 |
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0080460 |
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0080148 |
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0076652 |
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0034095 |
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0003698 |
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