Microstructure and Mechanical Behavior of Friction Stir Processed Al-Ti-Cu Alloy
Abstract
Friction stir processing (FSP) is a new technique for thermo-mechanical processing of materials. Recently, FSP has been applied to process a powder metallurgy alloy. By this technique, a hot pressed sheet is converted into a fully dense material. In this paper, the mechanical properties and microstructure of a friction stir processed Al-Ti-Cu nanophase alloy are reported. FSP results in a remarkably uniform microstructure wherein the banded structure commonly observed in extruded powder metallurgy alloys is eliminated. The uniform microstructure in FSP Al-Ti-Cu gives strength of over 700 MPa at ambient temperature with more than 5% elongation. The variation of strength and ductility with temperature are also presented. FSP provides a new opportunity to produce high strength powder metallurgy materials with a tailored microstructure.
Recommended Citation
J. Zheng et al., "Microstructure and Mechanical Behavior of Friction Stir Processed Al-Ti-Cu Alloy," Friction Stir Welding and Processing, pp. 235 - 242, Wiley, Dec 2001.
Department(s)
Materials Science and Engineering
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Wiley, All rights reserved.
Publication Date
01 Dec 2001