Patent application number | Description | Published |
20110048587 | Amorphous Alloy Materials - Design and fabrication processes and compositions for bulk metallic glass materials. Examples of bulk metallic glasses based on the described compositions may contain a high atomic percent of titanium or iron, which is alloyed with metalloid elements and refractory metals. The compositions can be designed using theoretical calculations of the liquidus temperature to have substantial amounts of refractory metals, while still maintaining a depressed liquidus temperature. The alloying elements are molybdenum, tungsten, chromium, boron, and carbon may be used. Some of the resulting alloys are ferromagnetic at room temperature, while others are non-ferromagnetic. These amorphous alloys have increased specific strengths and corrosion resistance compared to conventional high strength steels. | 03-03-2011 |
20110284135 | LOW COST AMORPHOUS STEEL - Design and fabrication processes and compositions for iron-based bulk metallic glass materials or amorphous steels. Examples of bulk metallic glasses based on the described compositions may contain approximately 59 to 70 atomic percent of iron, which is alloyed with approximately 10 to 20 atomic percent of metalloid elements and approximately 10 to 25 atomic percent of refractory metals. The compositions can be designed using theoretical calculations of the liquidus temperature to have substantial amounts of refractory metals, while still maintaining a depressed liquidus temperature. The alloying elements are molybdenum, tungsten, chromium, boron, and carbon may be used. Some of the resulting alloys are ferromagnetic at room temperature, while others are non-ferromagnetic. These amorphous steels have increased specific strengths and corrosion resistance compared to conventional high strength steels. | 11-24-2011 |
Patent application number | Description | Published |
20110008569 | WEAR-RESISTANT ATTACHMENTS FOR HIGH-WEAR APPLICATIONS - A wear-resistant attachment for insertion in a wear-resistant assembly, the assembly comprising a base with at least one recess, the attachment comprising: a bottom part configured to be removably inserted into the recess; and a top part comprising a wear-resistant material, wherein the top part is wider than the bottom part in at least one dimension such that the top part covers a surface of the base beyond the at least one recess. A wear-resistant assembly, comprising: a surface; a base; and a plurality of wear-resistant attachments removably coupled to the base, each of the plurality of wear-resistant attachments comprising an inner portion and an outer portion, wherein the outer portion of each of the plurality of wear-resistant attachments is coupled to the outer portion of at least one other wear-resistant attachment so that a plurality of coupled wear-resistant attachments comprise a substantially continuous surface, the substantially continuous surface comprising at least a portion of the surface of the wear-resistant assembly. A wear-resistant insert comprising a plurality of layers, each layer chosen from the group consisting of a hardface material, a tough material, and a joining interface, wherein the plurality of layers comprises at least two layers of a hardface material. | 01-13-2011 |
20130196111 | WEAR-RESISTANT ATTACHEMENTS FOR HIGH-WEAR APPLICATIONS - A wear-resistant assembly, including: a surface; a base; and a plurality of wear-resistant attachments removably coupled to the base, each of the plurality of wear-resistant attachments including an inner portion and an outer portion, wherein the outer portion of each of the plurality of wear-resistant attachments is coupled to the outer portion of at least one other wear-resistant attachment so that a plurality of coupled wear-resistant attachments include a substantially continuous surface, the substantially continuous surface including at least a portion of the surface of the wear-resistant assembly. | 08-01-2013 |
Patent application number | Description | Published |
20140105780 | NON-MAGNETIC METAL ALLOY COMPOSITIONS AND APPLICATIONS - Disclosed are non-magnetic metal alloy compositions and applications that relate to non-magnetic metal alloys with excellent wear properties for use in dynamic three-body tribological wear environments where an absence of magnetic interference is required. In one aspect, the disclosure can relate to a drilling component for use in directional drilling applications capable of withstanding service abrasion. In a second aspect, a hardbanding for protecting a drilling component for use in directional drilling can be provided. In a third aspect, a method for prolonging service life of a drilling component for use in directional drilling can be provided. | 04-17-2014 |
20140116575 | COMPOSITIONS AND METHODS FOR DETERMINING ALLOYS FOR THERMAL SPRAY, WELD OVERLAY, THERMAL SPRAY POST PROCESSING APPLICATIONS, AND CASTINGS - Disclosed herein are iron-based alloys having a microstructure comprising a fine-grained ferritic matrix and having a 60+ Rockwell C surface, wherein the ferritic matrix comprises <10 μm Nb and W carbide precipitates. Also disclosed are methods of welding comprising forming a crack free hardbanding weld overlay coating with such an iron-based alloy. Also disclosed are methods of designing an alloy capable of forming a crack free hardbanding weld overlay, the methods comprising the steps of determining an amorphous forming epicenter composition, determining a variant composition having a predetermined change in constituent elements from the amorphous forming epicenter composition, and forming and analyzing an alloy having the variant composition. | 05-01-2014 |
20140161984 | FINE GRAINED NI-BASED ALLOYS FOR RESISTANCE TO STRESS CORROSION CRACKING AND METHODS FOR THEIR DESIGN - A class of nickel based alloys having a fine grain structure resistant to stress corrosion cracking, and methods of alloy design to produce further alloys within the class are presented. The alloys act as suitable welding materials in similar applications to that of Alloy 622. The fine-grained structure of these novel alloys may also be advantageous for other reasons as well such as wear, impact, abrasion, corrosion, etc. These alloys have similar phases to Alloy 622 in that they are composed primarily of austenitic nickel, however the phase morphology is a much finer grained structure opposed to the long dendritic grains common to Alloy 622 when it is subject to cooling rates from a liquid state inherent to the welding process. | 06-12-2014 |
20140219859 | ALLOYS FOR HARDBANDING WELD OVERLAYS - Disclosed herein are iron-based alloys having a microstructure comprising a fine-grained ferritic matrix and having a 60+ Rockwell C surface, wherein the ferritic matrix comprises <10 μm carbide precipitates. Also disclosed are methods of welding comprising forming a crack free hardbanding weld overlay coating with such an iron-based alloy. Also disclosed are families of alloys capable of forming crack-free weld overlays after multiple welding passes. | 08-07-2014 |
20140234154 | HARD WELD OVERLAYS RESISTANT TO RE-HEAT CRACKING - A hard weld overlay which is resistant to cracking when re-heated, and a method for designing such alloys, is disclosed. The alloys are able to resist re-heat cracking through prevention of the precipitation and/or growth of embrittling carbide, borides, or borocarbides at elevated temperatures. In one embodiment, the thermodynamics of the alloy system possess only primary carbides and secondary ferrite carbides. | 08-21-2014 |
20140248509 | COATING COMPOSITIONS - Compositions are provided that exhibit an austenitic nickel microstructure. The compositions comprise Ni, Cr, Mo and at least one element selected from the group consisting of Al, Si, and Ti. Feedstock having the composition may be in the form of a cored wire or wires, a solid wire or wires, or a powder. | 09-04-2014 |
Patent application number | Description | Published |
20110064963 | THERMAL SPRAY PROCESSES AND ALLOYS FOR USE IN SAME - The present invention provides a method for coating an article comprising applying a thermal spray coating to the article; applying a brazing material to the article; and heating the brazing material to at least a brazing temperature of the brazing material to form a resultant coating on the article, wherein the resultant coating is characterized by at least partial metallurgical bonding or at least partial alloying between the thermal spray coating and the brazing material. | 03-17-2011 |
20110068152 | COMPOSITIONS AND METHODS FOR DETERMINING ALLOYS FOR THERMAL SPRAY, WELD OVERLAY, THERMAL SPRAY POST PROCESSING APPLICATIONS, AND CASTINGS - Disclosed herein are iron-based alloys having a structure comprising fine-grained ferritic matrix and having a 60+ Rockwell C surface, wherein the ferrific matrix comprises <10 μm Nb and W carbide precipitates. Also disclosed are methods of welding comprising forming a crack free hardbanding weld overlay coating with such an iron-based alloy. Also disclosed are methods of designing an alloy capable of forming a crack free hardbanding weld overlay, the methods comprising the step determining an amorphous forming epicenter composition, determining a variant composition having a predetermined change in constituent elements from the amorphous forming epicenter composition, and forming and analyzing an alloy having the variant composition. | 03-24-2011 |
20110121056 | COMPOSITIONS AND METHODS FOR DETERMINING ALLOYS FOR THERMAL SPRAY, WELD OVERLAY, THERMAL SPRAY POST PROCESSING APPLICATIONS, AND CASTINGS - Disclosed herein are iron-based alloys having a microstructure comprising a fine-grained ferritic matrix and having a 60+ Rockwell C surface, wherein the ferritic matrix comprises <10 μm Nb and W carbide precipitates. Also disclosed are methods of welding comprising forming a crack free hardbanding weld overlay coating with such an iron-based alloy. Also disclosed are methods of designing an alloy capable of forming a crack free hardbanding weld overlay, the methods comprising the steps of determining an amorphous forming epicenter composition, determining a variant composition having a predetermined change in constituent elements from the amorphous forming epicenter composition, and forming and analyzing an alloy having the variant composition. | 05-26-2011 |
20120224992 | ALLOYS FOR HARDBANDING WELD OVERLAYS - Disclosed herein are iron-based alloys having a microstructure comprising a fine-grained ferritic matrix and having a 60+ Rockwell C surface, wherein the ferritic matrix comprises <10 μm carbide precipitates. Also disclosed are methods of welding comprising forming a crack free hardbanding weld overlay coating with such an iron-based alloy. Also disclosed are families of alloys capable of forming crack-free weld overlays after multiple welding passes. | 09-06-2012 |
20120267420 | FINE GRAINED NI-BASED ALLOYS FOR RESISTANCE TO STRESS CORROSION CRACKING AND METHODS FOR THEIR DESIGN - A class of nickel based alloys having a fine grain structure resistant to stress corrosion cracking, and methods of alloy design to produce further alloys within the class are presented. The alloys act as suitable welding materials in similar applications to that of Alloy 622. The fine-grained structure of these novel alloys may also be advantageous for other reasons as well such as wear, impact, abrasion, corrosion, etc. These alloys have similar phases to Alloy 622 in that they are composed primarily of austenitic nickel, however the phase morphology is a much finer grained structure opposed to the long dendritic grains common to Alloy 622 when it is subject to cooling rates from a liquid state inherent to the welding process. | 10-25-2012 |
20130171367 | COATING COMPOSITIONS, APPLICATIONS THEREOF, AND METHODS OF FORMING - A method to protect and modify surface properties of articles is disclosed. In one embodiment of the method, an intermediate layer is first deposited onto a substrate of the article. The intermediate layer has a thickness of at least 2 mils containing a plurality of pores with a total pore volume of 5 to 50% within a depth of at least 2 mils. A lubricant material is deposited onto the intermediate layer, wherein the lubricant material infiltrates at least a portion of the pores and forms a surface layer. The surface layer can be tailored with the selection of the appropriate material for the intermediate layer and the lubricant material, for the surface layer to have the desired surface tension depending on the application. | 07-04-2013 |
20130216722 | Coating Compositions, Applications Thereof, and Methods of Forming - A method for forming protective corrosive resistant coatings on equipment is disclosed. The coating is formed from a NiCrMo alloy composition containing at least two gettering components selected from Al, Si, and Ti in an amount of up to 25 wt. %. The coating in one embodiment is applied using a thermal spray technique, e.g., twin wire arc spray, forming coatings of 5-50 mils thickness having a fine-scale micro-pore structure which is effectively non-permeable in aggressive solutions, and resist selective oxidation in thermal spraying of components for maximized corrosion performance The coating is further characterized as having excellent adhesion strength even when applied with varying parameters as in manual on-site coating applications. | 08-22-2013 |
20130216862 | Coating Compositions, Applications Thereof, and Methods of Forming - Equipment (work piece) for use in corrosive resistant coating on equipment is disclosed. The equipment has at least a portion of its surface coated with a layer formed from a NiCrMo alloy composition containing at least two gettering components selected from Al, Si, and Ti in an amount of up to 25 wt. %. The coating in one embodiment is applied on the equipment using a thermal spray technique, e.g., twin wire arc spray, forming coatings of 5-50 mils thickness having a fine-scale micro-pore structure. The coating layer is characterized as having excellent adhesion strength and corrosion resistant properties, even when applied with varying parameters as in manual on-site coating applications. In one embodiment, the coating layer has an impurity content of less than 15%. | 08-22-2013 |
20130220523 | COATING COMPOSITIONS, APPLICATIONS THEREOF, AND METHODS OF FORMING - A method for forming protective coatings on equipment is disclosed. The coating is formed from a single-component Fe-based alloy composition comprising at least two refractory elements selected from Cr, V, Nb, Mo and W in an amount of up to 30% each and a total concentration of up to 40%. In one embodiment, the single-component coating layer is applied by thermal spraying, followed by heat treatment for at least a portion of the refractory elements to fuse into the substrate forming a metallurgical bond. The coating has an adhesion strength of at least 7,000 psi measured according to ASTM D4541. The coating is further characterized as being impermeable to corrosive environments showing no pin holes in the ferroxyl test according to ASTM A967 Practice E. | 08-29-2013 |
20130224516 | COATING COMPOSITIONS, APPLICATIONS THEREOF, AND METHODS OF FORMING - Equipment having a protective coating layer for use in abrasive environments, e.g., sulfur-containing environments, is disclosed. The coating is formed from a single-component feedstock, as a Fe-based alloy composition comprising at least two refractory elements selected from Cr, V, Nb, Mo and W in an amount of up to 30% each and a total concentration of up to 40%. In one embodiment, the coating is applied by thermal spraying, followed by heat treatment for at least a portion of the refractory elements in the coating to fuse into the substrate forming a metallurgically bonded coating. The coating has an adhesion strength of at least 7,000 psi measured according to ASTM D4541. The coating layer is further characterized as being impermeable to corrosive environments showing no pin holes in the ferroxyl test according to ASTM A967 Practice E. | 08-29-2013 |
20130266798 | METAL ALLOY COMPOSITIONS AND APPLICATIONS THEREOF - A method for protecting a work piece for use in abrasive environments with hardbanding is provided. The layer is deposited onto at least a portion of the work piece to be protected. The deposited layer exhibits a hardness of at least 50 R | 10-10-2013 |
20130266820 | METAL ALLOY COMPOSITIONS AND APPLICATIONS THEREOF - A work piece for use in abrasive environments with hardbanding is provided. The work piece has at least a protective layer deposited onto at least a portion to be protected. The deposited layer exhibits a hardness of at least 50 R | 10-10-2013 |