Processing and Characterization of AA2195 Al-Cu-Li Alloy Bars Processed through Vacuum Induction Melting and Caliber Rolling

Niraj Nayan; S.V.S. Narayana Murty; S.C. Sharma; K. Sreekumar; Parameshwar Prasad Sinha

doi:10.4028/www.scientific.net/MSF.710.125

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HomeMaterials Science ForumMaterials Science Forum Vol. 710Processing and Characterization of AA2195 Al-Cu-Li...

Processing and Characterization of AA2195 Al-Cu-Li Alloy Bars Processed through Vacuum Induction Melting and Caliber Rolling

Abstract:

A novel technique of pure Lithium addition has been adopted for the processing of Al-Cu-Li alloy AA2195 cast ingots (7-8 kg each) in VIM under dynamic inert atmosphere, which gives more than 95% recovery of Lithium. The cast billets were homogenized, forged and converted into 12mm diameter rods by caliber rolling in the temperature range of 250°C, 300°C, 350°C and 400°C. The caliber rolled rods were treated to T8 (Solution Treatment+WQ+CW+Aging) condition. Mechanical properties were evaluated for T8 tempered bars at room temperature and correlated with microstructural observations. Highest mechanical properties in T87 temper have been obtained for rods caliber rolled at 350°C temperature.

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Periodical:

Materials Science Forum (Volume 710)

Pages:

125-131

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.710.125

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Online since:

January 2012

Authors:

Niraj Nayan, S.V.S. Narayana Murty, S.C. Sharma, K. Sreekumar, Parameshwar Prasad Sinha

Keywords:

AA2195, Al-Cu-Li Alloy, Caliber Rolling, Homogenization, Themomechanical Treatment, Vacuum Induction Melting

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