Thermomechanical treatment method for providing super-plasticity to Al-Li Alloy

A thermo mechanical treatment method for providing super-plasticity to Al-Li alloy being a kind of light and high strength alloys. The thermo mechanical treatment method according the invention comprises steps of, homogenizing Al-Li alloy consisting of Al-Cu-Li-Mg-Zr at a temperature of 500 DEG -500...

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Bibliographische Detailangaben
Hauptverfasser:	MOON, IN GE, YOO, JAE EUN, PARK, JONG WOO
Format:	Patent
Sprache:	eng
Schlagworte:	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
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Beschreibung
Zusammenfassung:	A thermo mechanical treatment method for providing super-plasticity to Al-Li alloy being a kind of light and high strength alloys. The thermo mechanical treatment method according the invention comprises steps of, homogenizing Al-Li alloy consisting of Al-Cu-Li-Mg-Zr at a temperature of 500 DEG -500 DEG C. for 10-30 hours, and controlled rolling the alloy at a temperature of 300 DEG -500 DEG C., a rolling speed of 2-20 m/min and a draft percentage per pass of 2-18%. The thermo mechanical treatment of the invention has a wide industrially applicable range and thus an excellent operation efficiency. The thermo mechanical treatment exhibits excellent super-plasticity at a higher strain speed as compared with known treatments.