@inproceedings{ee3df902146442f5a6ad0eb031cc0041,
title = "Evolution of Grain Refinement in AA5083 Sheet Metal Processed by ECAP",
abstract = "Achieving superplasticity requires a homogeneous, fine-grained microstructure with (primarily) globular grains. Equal-Channel Angular Pressing (ECAP) is an established method that produces considerable grain refinement. While there is substantial knowledge about work hardening and grain refinement during ECAP of bulk materials, there is only little information on the effect of ECAP on sheet materials. In the present study, AA5083 aluminum sheets are deformed by single and multiple passes using a 120° die that enables processing of sheet metals following novel ECAP routes, like route D. The effect of different ECA-processing routes on microstructural evolution is characterized by EBSD and supported by additional micro-hardness measurements. Our first results presented here clearly show that microstructural evolution during sheet metal ECAP is strongly path dependent. Our study highlights the challenges of sheet metal ECAP (e.g., microstructural gradients) for producing ultrafine-grained microstructures for superplastic applications.",
keywords = "AA5083, ECAP, Sheet metal forming",
author = "Christian Illgen and Philipp Frint and Maximilian Gruber and Wolfram Volk and Wagner, {Martin F.X.}",
note = "Publisher Copyright: {\textcopyright} 2020, The Minerals, Metals & Materials Society.; Light Metals Symposium held at the 149th Annual Meeting and Exhibition, TMS 2020 ; Conference date: 23-02-2020 Through 27-02-2020",
year = "2020",
doi = "10.1007/978-3-030-36408-3_52",
language = "English",
isbn = "9783030364076",
series = "Minerals, Metals and Materials Series",
publisher = "Springer Science and Business Media Deutschland GmbH",
pages = "362--369",
editor = "Alan Tomsett",
booktitle = "Light Metals 2020",
}