Release Time:2019-03-09  Hits:

Indexed by: Journal Papers

Date of Publication: 2015-06-01

Journal: SCRIPTA MATERIALIA

Included Journals: Scopus、EI、SCIE

Volume: 102

Page Number: 79-82

ISSN: 1359-6462

Key Words: Titanium alloys; Twinning; Multilayered deformation microstructures; Interface; Ductility

Abstract: A 10-layer Ti-10Mo-1Fe/Ti-10Mo-3Fe alternating stack material was manufactured by hot-roll bonding and heat treatment. The interfaces between layers could not be detected except for transition region in Fe concentration. However, the interfaces prevented {3 3 2}<1 1 3> twinning in the Ti-10Mo-1Fe region from expanding throughout Ti-10Mo-3Fe region which was deformed by dislocation slips despite having the same crystallographic character. The artificially multilayered twinning/dislocation slip deformation microstructures provide a novel approach for controlling the balance between uniform elongation and yield strength in beta-type titanium alloys. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.