AL-CU-LI alloys with improved cryogenic fracture toughness
A method is disclosed for the production of aluminum-copper-lithium alloys that exhibit improved strength and fracture toughness at cryogenic temperatures. Improved cryogenic properties are achieved by controlling the composition of the alloy, along with processing parameters such as the amount of c...
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| Main Authors | , |
|---|---|
| Format | Patent |
| Language | English |
| Published |
06.11.1997
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| Edition | 6 |
| Subjects | |
| Online Access | Get full text |
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| Abstract | A method is disclosed for the production of aluminum-copper-lithium alloys that exhibit improved strength and fracture toughness at cryogenic temperatures. Improved cryogenic properties are achieved by controlling the composition of the alloy, along with processing parameters such as the amount of cold-work and artificial aging. The ability to attain substantially equal or greater strength and fracture toughness at cryogenic temperature in comparison to room temperature allows for use of the alloys in cryogenic tanks for space launch vehicles and the like. |
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| AbstractList | A method is disclosed for the production of aluminum-copper-lithium alloys that exhibit improved strength and fracture toughness at cryogenic temperatures. Improved cryogenic properties are achieved by controlling the composition of the alloy, along with processing parameters such as the amount of cold-work and artificial aging. The ability to attain substantially equal or greater strength and fracture toughness at cryogenic temperature in comparison to room temperature allows for use of the alloys in cryogenic tanks for space launch vehicles and the like. |
| Author | WILLIAM T TACK JOSEPH R PICKENS |
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| PublicationDate | 19971106 |
| PublicationDateYYYYMMDD | 1997-11-06 |
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| PublicationYear | 1997 |
| RelatedCompanies | MARTIN MARIETTA CORPORATION |
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| Snippet | A method is disclosed for the production of aluminum-copper-lithium alloys that exhibit improved strength and fracture toughness at cryogenic temperatures.... |
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| SubjectTerms | ALLOYS CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| Title | AL-CU-LI alloys with improved cryogenic fracture toughness |
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