Published March 25, 2015 | Version v1
Journal article Metadata-only

High strength beta titanium alloys: New design approach

Creators

  • 1. TU Dresden, Institut für Werkstoffwissenschaft, D-01062 Dresden (Germany)
  • 2. IFW Dresden, Helmholtzstr. 20, D-01069 Dresden (Germany)
  • 3. Institute of Natural Sciences, Ural Federal University, 620000 Ekaterinburg (Russian Federation)
  • 4. School of Engineering, Edith Cowan University, 270 Joondalup Drive, Joondalup, Perth, WA 6027 (Australia)
  • 5. TU Dresden, Institut für Strukturphysik, D-01062 Dresden (Germany)

Description

A novel approach for development of high strength and ductile beta titanium alloys was proposed and successfully applied. The microstructure of the designed alloys is fully composed of a bcc β-Ti phase exhibiting dendritic morphology. The new Ti68.8Nb13.6Cr5.1Co6Al6.5 (at%) alloy (BETAtough alloy) exhibits a maximum tensile strength of 1290±50 MPa along with 21±3% of fracture strain. The specific energy absorption value upon mechanical deformation of the BETAtough alloy exceeds that of Ti-based metallic glass composites and commercial high strength Ti-based alloys. The deformation behavior of the new alloys was correlated with their microstructure by means of in-situ studies of the microstructure evolution upon tensile loading in a scanning electron microscope

Availability note (English)

Available from http://dx.doi.org/10.1016/j.msea.2015.01.073

Additional details

Identifiers

DOI
10.1016/j.msea.2015.01.073;
PII
S0921-5093(15)00100-8;

Publishing Information

Journal Title
Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing
Journal Volume
628
Journal Page Range
p. 297-302
ISSN
0921-5093
CODEN
MSAPE3

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
47044741
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ALLOY SYSTEMS; ALUMINIUM COMPOUNDS; BCC LATTICES; CHROMIUM COMPOUNDS; COBALT COMPOUNDS; DEFORMATION; DENDRITES; DUCTILITY; ENERGY ABSORPTION; LOADING; METALLIC GLASSES; MICROSTRUCTURE; NIOBIUM COMPOUNDS; PRESSURE RANGE MEGA PA; SCANNING ELECTRON MICROSCOPY; STRAINS; TITANIUM COMPOUNDS; TITANIUM-BETA
Descriptors DEC
ABSORPTION; CRYSTAL LATTICES; CRYSTAL STRUCTURE; CRYSTALS; CUBIC LATTICES; ELECTRON MICROSCOPY; ELEMENTS; MATERIALS HANDLING; MECHANICAL PROPERTIES; METALS; MICROSCOPY; PRESSURE RANGE; REFRACTORY METAL COMPOUNDS; SORPTION; TENSILE PROPERTIES; THREE-DIMENSIONAL LATTICES; TITANIUM; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS

Optional Information

Copyright
Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.