Incremental Forming of the Al-Li Alloy AA2195: Role of Texture and Microstructure

More, AM and Kalsar, R and Shivashankar, P and Lingam, R and Reddy, NV and Prakash, O and Suwas, S (2020) Incremental Forming of the Al-Li Alloy AA2195: Role of Texture and Microstructure. In: JOM, 72 (4). pp. 1647-1655.

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Abstract

This study deals with the evolution of crystallographic texture during secondary processing of aluminium-lithium alloy AA2195 sheets and its effect on the single-point incremental forming (SPIF) process. Significantly different textures were generated in AA2195 alloy sheets by the unidirectional rolling (UDR) and multi-step cross-rolling (MSCR) processes followed by subsequent annealing. The differently textured sheets were then subjected to the SPIF process. For UDR processed sheets, the texture was the strong copper type (Cu-type), whereas in MSCR processed sheets, the texture comprised weak fibres. The UDR samples with strong texture experienced cracking during incremental forming, whereas the MSCR samples could be formed without any cracks. Detailed analyses of the microstructure and texture were performed at various locations on the incrementally formed part to understand the deformation micromechanism at specific locations on the formed component. © 2020, The Minerals, Metals & Materials Society.

Item Type:	Journal Article
Publication:	JOM
Publisher:	Springer
Additional Information:	The copyright of this article belongs to Springer
Keywords:	Binary alloys; Lithium alloys; Rolling; Textures, Aluminium-lithium alloys; Crystallographic textures; Incremental forming; Micro mechanisms; Secondary processing; Single point incremental forming; Specific location; Texture and microstructures, Aluminum alloys
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	18 Aug 2020 11:00
Last Modified:	18 Aug 2020 11:00
URI:	http://eprints.iisc.ac.in/id/eprint/64716

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