Title

Heat treatments for precipitation of scandium-containing dispersoids in an Si-containing aluminum alloys

Authors

Timothy Langan, Clean Teq Ltd
Mahendra Ramjayam, Deakin University
Paul G. Sanders, Michigan Technological UniversityFollow
Thomas D. Wood, Michigan Technological UniversityFollow
Thomas Dorin, Deakin University

Document Type

Conference Paper/Presentation

Publication Date

2-16-2019

Abstract

Benefits of alloying Sc with aluminum resulting from the precipitation of coherent Al3Sc dispersoids, including refined microstructure, increased strength, and improved weldability, have been demonstrated for a number of commercial aluminum alloys. Historically interactions between Sc and Si have limited the benefits of Sc additions in Al-Mg-Si 6xxx alloys. The first step towards developing a Sc containing 6xxx-alloys requires studying the interaction between Si and Sc. Hence, this work characterizes the aging response associated with precipitation of Si-modified Al3Sc dispersoids in a Sc-containing Al-Si alloys. The work reported in this paper focuses on understanding the breakdown of the solid solution of Sc in Si-containing aluminum alloys. Results of this study can be used to define heat treatment schedules for scandium containing 6xxx alloys.

Publisher's Statement

© The Minerals, Metals & Materials Society 2019. Publisher's version of record: https://doi.org/10.1007/978-3-030-05864-7_183

Publication Title

Light Metals 2019

Recommended Citation

Langan, T., Ramjayam, M., Sanders, P. G., Wood, T. D., & Dorin, T. (2019). Heat treatments for precipitation of scandium-containing dispersoids in an Si-containing aluminum alloys. Light Metals 2019, 1463-1467. http://doi.org/10.1007/978-3-030-05864-7_183
Retrieved from: https://digitalcommons.mtu.edu/materials_fp/203