Title

High Strength Beta Titanium Alloys: New Design Approach

Document Type

Journal Article

Publisher

Elsevier

Faculty

Faculty of Health, Engineering and Science

School

School of Engineering

RAS ID

20319

Comments

This article was originally published as : Okulov, I. V., Wendrock, H., Volegov, A. S., Attar, H., Kühn, U., Skrotzki, W., & Eckert, J. (2015). High strength beta titanium alloys: New design approach. Materials Science and Engineering: A, 628(0), 297-302. doi: http://dx.doi.org/10.1016/j.msea.2015.01.073. Original Article available here

Abstract

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.

DOI

10.1016/j.msea.2015.01.073

Access Rights

Open access

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