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1. WO1996004409 - SELECTED PROCESSING FOR NON-EQUILIBRIUM LIGHT ALLOYS AND PRODUCTS

Publication Number WO/1996/004409
Publication Date 15.02.1996
International Application No. PCT/EP1995/002882
International Filing Date 19.07.1995
Chapter 2 Demand Filed 22.02.1996
IPC
C23C 14/14 2006.01
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
14Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
06characterised by the coating material
14Metallic material, boron or silicon
C23C 14/22 2006.01
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
14Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
22characterised by the process of coating
CPC
C23C 14/14
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
14Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
06characterised by the coating material
14Metallic material, boron or silicon
C23C 14/22
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
14Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
22characterised by the process of coating
Y02T 50/60
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
50Aeronautics or air transport
60Efficient propulsion technologies, e.g. for aircraft
Y10T 137/85938
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
137Fluid handling
8593Systems
85938Non-valved flow dividers
Applicants
  • HEHMANN, Franz [DE]/[DE]
  • WEIDEMANN, Michael [DE]/[DE] (UsOnly)
Inventors
  • HEHMANN, Franz
  • WEIDEMANN, Michael
Agents
  • GRAMM, LINS & PARTNER
Priority Data
94111991.901.08.1994EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SELECTED PROCESSING FOR NON-EQUILIBRIUM LIGHT ALLOYS AND PRODUCTS
(FR) TRAITEMENT SELECTIONNE D'ALLIAGES LEGERS ET DE PRODUITS HORS D'EQUILIBRE
Abstract
(EN)
Methods to produce corrosion resistant wrought light alloys and products, in particular aluminium and magnesium alloys, the latter containing 0.1-0.2 to 30-35 wt.% light rare earth metals and/or corresponding misch-metals and/or Y (and Eu) and/or 0.1 to 40 wt.% early transition metals and/or metalloids, by appropriate extension of corresponding latitude of alloying made possible by very extreme processing conditions of rapid solidification techniques via vapour deposition using thermal evaporation and/or plasma and magnetron sputtering methods. Engineering solutions are described to control productivity, quality and yield, via melt spinning, planar flow casting, laser beam surface melting and ball milling techniques including five particular methods for mechanical alloying, mechanical grinding and/or reaction milling, all employed to achieve the unique microstructures required for superior property profiles. These are followed by consolidation procedures including extrusion, rolling, forging, drawing and superplastic forming. The alloys show surprising resistance to corrosive attack even under the exposure to saline environments containing hydrogenperoxide (H202). The alloys may contain (depending on the alloy synthesis method employed) further minor and major additions of transition and simple metals as well as metalloids with similar characteristics as rare earth and early transition metals regarding passivation of the alloyed surface.
(FR)
L'invention concerne des procédés de production d'alliages légers et de produits corroyés, résistant à la corrosion, en particulier d'alliages d'aluminium et de magnésium, ces derniers contenant 0,1-0,2 à 30-35 % en poids de métaux légers de terres rares et/ou de mischmétaux correspondants et/ou d'Y (et Eu) et/ou 0,1 à 40 % en poids de métaux de transition précoce et/ou de métalloïdes. Ces procédés consistent à accroître de façon appropriée la latitude d'alliage correspondante rendue possible par des conditions de traitement très extrêmes de techniques de solidification rapide par métallisation sous vide au moyen de procédés d'évaporation thermique et/ou de pulvérisation au plasma et au magnétron. L'invention concerne des solutions techniques permettant de contrôler la productivité, la qualité et le rendement au moyen de techniques de filage par fusion, de coulée à flux planaire, de fusion superficielle au laser et de broyage à billes, y compris cinq techniques particulières d'alliage mécanique, de broyage mécanique et/ou de broyage par réaction, toutes employées pour obtenir les microstructures uniques requises pour atteindre des niveaux de propriétés supérieurs. Ces opérations sont suivies par des étapes de consolidation comprenant extrusion, laminage, forgeage, étirage et formage superplastique. Les alliages obtenus présentent une résistance surprenante à l'attaque par corrosion, même lorsqu'ils sont exposés à des environnements salifères contenant du peroxyde d'hydrogène (H2O2). Les alliages peuvent contenir (en fonction du procédé de synthèse d'alliage utilisé) d'autres additions plus ou moins importantes de métaux de transition et de métaux simples ainsi que de métalloïdes présentant des caractéristiques similaires à celles des métaux de terres rares et de transition précoce, en ce qui concerne la passivation de la surface alliée.
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