Cryoforged nanotwinned titanium with ultrahigh strength and ductility-Reference-Cited by-同舟云学术

Cryoforged nanotwinned titanium with ultrahigh strength and ductility

Published:2021-09-17 Issue:6561 Volume:373 Page:1363-1368
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Zhao Shiteng¹²³^ORCID,Zhang Ruopeng¹²^ORCID,Yu Qin⁴^ORCID,Ell Jon¹⁴^ORCID,Ritchie Robert O.¹⁴^ORCID,Minor Andrew M.¹²^ORCID

Affiliation:

1. Department of Materials Science and Engineering, University of California, Berkeley, CA 94720, USA.

2. National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.

3. School of Materials Science and Engineering, Beihang University, Beijing 100191, China.

4. Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.

Abstract

Titanium gets some twins Introducing a network of nanotwins is known to improve the properties of face-centered cubic metal alloys. Zhao et al . used gentle compression in liquid nitrogen to introduce a similar network of nanotwins in hexagonal closed-packed titanium. By starting with a titanium that has little oxygen, the twin network can be more easily established. The nanotwinned network improved the yield strength by 50% and ductility by 20% at room temperature. The cryogenic properties were even better, with a yield strength of two gigapascals and a tensile ductility of 100% before failure. —BG

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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