Patents for C23C 12 - Solid state diffusion of at least one non-metal element other than silicon and at least one metal element or silicon into metallic material surfaces (529)
07/2001
07/31/2001US6268067 Surfaced alloyed high temperature alloys
06/2001
06/14/2001WO2001042527A1 Modification of diffusion coating grain structure by nitriding
06/14/2001US20010003227 Light metal cylinder block, method of producing same and device for carrying out the method
03/2001
03/06/2001US6197436 Heating chromium, ferrochromium, tantalum carbide, vanadium, ammonium chloride and aluminum oxide diffusion coating mixture to form a nonporous chromium carbide-containing hard corrosion resistant layer on ferrous workpiece
03/06/2001US6197125 Modification of diffusion coating grain structure by nitriding
02/2001
02/06/2001CA2216689C Aluminum product having metal diffusion layer, process for producing the same, and paste for metal diffusion treatment
01/2001
01/02/2001US6168874 For use in superalloy turbine, combustor and augmentor components of gas; protective coatings
12/2000
12/06/2000CN1275637A Diamond-cobalt boron compound wear-resistant composite coating of carbide tool and preparation process thereof
10/2000
10/26/2000DE19915038A1 Leichtmetallzylinderblock, Verfahren zu seiner Herstellung und Vorrichtung zur Durchführung des Verfahrens Light alloy cylinder block, process for its production and device for carrying out the method
10/12/2000WO2000060136A1 Light metal cylinder block, method for producing the same and device for carrying out said method
10/04/2000EP1041173A1 Light metal cylinder block, method for making it and apparatus for carrying out the process
09/2000
09/14/2000WO2000053949A1 A friction member and a method for its surface treatment
08/2000
08/09/2000EP1026280A2 An aluminum-containing member and a method for producing such an aluminum-containing member
07/2000
07/25/2000US6093260 Surface alloyed high temperature alloys
07/05/2000CN1054163C Cast steel roll and its heat treatment method
06/2000
06/27/2000US6080246 Method of aluminising a superalloy
04/2000
04/04/2000CA2003660C Supersaturation plating of aluminum wettable cathode coatings during aluminum smelting in drained cathode cells
01/2000
01/19/2000EP0972851A2 Sliding member having chromium nitride film formed thereon
12/1999
12/28/1999US6007922 Chromium boride coatings
12/22/1999CN1239154A Complex diffused coal spray gun for blast furnace and its manufacture technology
11/1999
11/23/1999US5989734 Hardness, heat resistance, wear resistance, corrosion resistance, brightness, fresh tone of color, lightweight; for ornaments, household electric appliances, automobile parts
11/17/1999EP0956373A1 Surface alloyed high temperature alloys
10/1999
10/28/1999WO1999054519A1 Method of producing oxide surface layers on metals and alloys
08/1999
08/19/1999WO1999031289A8 Sliding member having chromium nitride film formed thereon
08/04/1999EP0933448A1 Improved diffusion aluminide bond coat for a thermal barrier coating system and a method therefor
07/1999
07/07/1999EP0596099B1 Multiplex aluminide-silicide coating
06/1999
06/24/1999WO1999031289A1 Sliding member having chromium nitride film formed thereon
06/16/1999EP0922786A2 Ceramic coated product, and method for forming the ceramic coated product
06/02/1999EP0919642A2 Method for treating surface of ferrous material and salt bath furnace used therefor
05/1999
05/26/1999CN1217389A Surface alloyed aluminium-alloy section and producing method therefor
05/19/1999CN1217031A Surface alloyed high temp. alloys
03/1999
03/30/1999US5888269 Mixture containing aluminum powder
07/1998
07/14/1998US5779842 Forming an erosion resistant coating on an electrode
06/1998
06/30/1998US5774516 Modification of oxide film electrical conductivity to maintain low corrosion potential in high-temperature water
06/16/1998US5768330 Co-deposition of palladium during oxide film growth in high-temperature water to mitigate stress corrosion cracking
04/1998
04/21/1998US5741372 Method of producing oxide surface layers on metals and alloys
04/08/1998EP0834592A1 Aluminum product having metal diffusion layer, process for producing the same, and paste for metal diffusion treatment
03/1998
03/04/1998EP0826789A1 Modification of oxide film electrical conductivity to maintain low corrosion potential in high-temperature water
01/1998
01/28/1998EP0821076A1 A method of aluminising a superalloy
01/23/1998CA2211149A1 Platinum aluminising single crystal superalloys
11/1997
11/06/1997WO1997041275A1 Surface alloyed high temperature alloys
10/1997
10/09/1997WO1997037050A1 Ti-Al-BASE ALLOY HAVING EXCELLENT OXIDATION RESISTANCE AND PROCESS FOR PREPARING THE SAME
03/1997
03/04/1997US5608766 Co-deposition of palladium during oxide film growth in high-temperature water to mitigate stress corrosion cracking
02/1997
02/04/1997US5599404 Stability
11/1996
11/27/1996CN1136594A Cast-steel roller and its heat treatment method
11/13/1996EP0741925A1 Erosion resistant coating on a spark plug electrode
10/1996
10/31/1996WO1996034122A1 Processing for forming nitride, carbide and oxide protective coatings
08/1996
08/28/1996CN1129745A Agent for co-cementation of boron, silicon and aluminum
08/20/1996US5547770 Multiplex aluminide-silicide coating
06/1996
06/13/1996DE4443914A1 Thermochemical surface treatment of steel parts in a fluidised bed
06/05/1996CN1031950C Salt bath cementation process with rare-earth and vanadium-boron
04/1996
04/17/1996EP0707319A1 Co-deposition of palladium during oxide film growth in high-temperature water to mitigate stress corrosion cracking
04/14/1996CA2159371A1 Co-deposition of palladium during oxide film growth in high-temperature water to mitigate stress corrosion cracking
01/1996
01/04/1996DE4421810A1 Thermionic electron emitter used for electron tubes
11/1995
11/29/1995EP0366784B1 Activated metal and method
10/1995
10/18/1995CN1110332A Postheating treatment process after metallic cementation
10/03/1995US5455068 Method for treating continuous extended lengths of tubular member interiors
08/1995
08/30/1995EP0494977B1 Method of modifying the surface of a substrate
07/1995
07/27/1995WO1995020256A1 Erosion resistant coating on a spark plug electrode
07/04/1995CA1336150C Method and apparatus for surface treatment
06/1995
06/21/1995CN1029015C Method for vanadium- and chromium- alloying the surface of metals
06/06/1995US5421914 Surface modification of high temperature iron alloys
02/1995
02/22/1995CN1099070A Long service life cylinder sleeve reinforcement method
11/1994
11/15/1994US5364659 Chromium and silicon alloy coatings with halide activators such as sodium fluoride and sodium chloride, silica fillers and reaction of sodium from activators with fillers with heat
09/1994
09/28/1994CN1092819A Salt bath process for rare-earth-vanadium-boron co-diffusion
08/1994
08/02/1994US5334263 Substrate stabilization of diffusion aluminide coated nickel-based superalloys
07/1994
07/13/1994CN1025440C Vandium-nitrogen codiffusion surface modified technology for iron-steel low temperature salt both
06/1994
06/29/1994EP0596099A4 Multiplex aluminide-silicide coating
06/29/1994CN1025226C Sulphur, nitrogen, carbon common ionodialysis agent and techonology promoting by rare-earth
05/1994
05/11/1994EP0596099A1 Multiplex aluminide-silicide coating
01/1994
01/05/1994DE4221445A1 Coating metal article with heterogeneous corrosion resistant material - and/or very hard material by embedding in powder contg. transition metal and exothermic reaction in presence of halogen
12/1993
12/15/1993CN1079514A Osmosis processing method for surface alloy of oxygen lance nozzle head
11/1993
11/25/1993WO1993023247A1 Multiplex aluminide-silicide coating
11/17/1993CN1022770C Method for solid shelling-out of titanium carbide
07/1993
07/21/1993CN1074490A Rare-earth cocementing agent and process thereof
07/13/1993US5227045 Supersaturation coating of cathode substrate
06/1993
06/09/1993EP0545661A2 Substrate stabilization of diffusion aluminide coated nickel-based superalloys
05/1993
05/27/1993DE4238220C1 Mixt. for diffusion coating ferrous material - contains chromium@, tantalum carbide, ammonium chloride, and alumina
01/1993
01/20/1993CN1068150A Corrugated stuffing aluminizing and multicomponent co-infiltration technology
12/1992
12/29/1992CA1311992C Method of forming a nitride or carbonitride layer
12/09/1992CN1066891A Low temp. salt bath vanadium-nitride co-permeate technology (mn)
10/1992
10/27/1992US5158655 Coating of cathode substrate during aluminum smelting in drained cathode cells
08/1992
08/25/1992US5141776 Method of depositing a refractory inorganic coating on the surface of a workpiece
07/1992
07/22/1992EP0494977A1 Method of modifying the surface of a substrate.
07/21/1992CA1305399C Method for the surface treatment of an iron or iron alloy article
07/07/1992CA1304658C Method for the surface treatment of an iron or iron alloy article
06/1992
06/17/1992EP0366784A4 Activated metal and method
05/1992
05/12/1992CA1300440C Method of surface treatment and apparatus used therefor
12/1991
12/04/1991CN1015004B Low-temp. salt bath vanadium nitrogen sulphur common seeping technology
11/1991
11/21/1991EP0456847A1 Method of producing a wear- and corrosion-resistant protective coating layer, composed of an austenitic steel alloy and so produced protective layer
11/12/1991US5064691 Heating with hydrides of boron and silicon and a reducing hydrogen carrier gas
09/1991
09/04/1991EP0444642A1 A method of obtaining a diffusion protective coating on ferrous alloys
07/1991
07/17/1991CN1013208B Method and apparatus for surface treatment
07/10/1991CN1013124B Method of surface treatment and apparatus used therefor
07/02/1991US5028301 Supersaturation plating of aluminum wettable cathode coatings during aluminum smelting in drained cathode cells
04/1991
04/24/1991EP0423345A1 Method for obtaining a refractory inorganic coating on the surface of an article
04/18/1991WO1991005072A1 Method of modifying the surface of a substrate
02/1991
02/20/1991CN1011710B Liquid boron-aluminium co-permeation method
12/1990
12/11/1990US4977036 Diffuson coating, cooling; surface treatment
11/1990
11/20/1990US4971839 High-temperature shielding coating and method for producing it
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