Texture control to reduce yield strength anisotropy in the third generation aluminum-copper-lithium alloy: Experiments and modeling

Mishra, S and Suresh, M and More, AM and Bisht, A and Nayan, N and Suwas, S (2021) Texture control to reduce yield strength anisotropy in the third generation aluminum-copper-lithium alloy: Experiments and modeling. In: Materials Science and Engineering A, 799 .

	PDF mat_sci_eng_799.pdf - Published Version Restricted to Registered users only Download (9MB) | Request a copy
	Microsoft Word Appendix A. Supplementary data.docx - Published Supplemental Material Restricted to Registered users only Download (300kB) | Request a copy

Abstract

In the present work, attempts have been made to control the yield strength anisotropy in an Al�Cu-Li alloy by implementing a novel processing route combining multi-axial forging (MAF) and rolling with an aim to weaken the texture. It has been observed that continuous destabilization of deformation texture during MAF results in weakening of texture. Further weakening of texture could be achieved upon post MAF cold cross rolling, which has been attributed to (i) the geometry induced shear in the roll gap, and (ii) the change in strain path during rolling. Such a weak texture is in contrast to strong Brass-type texture, generally observed in these alloys. Further annealing in the solution treatment regime led to even more weakening of texture. Uniaxial tensile tests along different directions of the as-processed sheets confirmed the weak dependency of yield strength on orientation of tensile axis. © 2020 Elsevier B.V.

Item Type:	Journal Article
Publication:	Materials Science and Engineering A
Publisher:	Elsevier Ltd
Additional Information:	copyright to this article belongs to Elsevier Ltd
Keywords:	Anisotropy; Copper alloys; Lithium alloys; Rolling; Tensile testing; Textures; Yield stress, Aluminum-copper; Brass type texture; Deformation texture; Novel processing routes; Solution treatments; Strength anisotropy; Third generation; Uniaxial tensile test, Aluminum alloys
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	21 Oct 2020 10:16
Last Modified:	21 Oct 2020 10:16
URI:	http://eprints.iisc.ac.in/id/eprint/66729

Actions (login required)

View Item