Multiplicity of dislocation pathways in a refractory multiprincipal element alloy-Reference-Cited by-同舟云学术

Multiplicity of dislocation pathways in a refractory multiprincipal element alloy

Published:2020-10-02 Issue:6512 Volume:370 Page:95-101
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Wang Fulin¹^ORCID,Balbus Glenn H.¹^ORCID,Xu Shuozhi²^ORCID,Su Yanqing³^ORCID,Shin Jungho¹^ORCID,Rottmann Paul F.⁴^ORCID,Knipling Keith E.⁵^ORCID,Stinville Jean-Charles¹,Mills Leah H.¹^ORCID,Senkov Oleg N.⁶,Beyerlein Irene J.¹²³^ORCID,Pollock Tresa M.¹^ORCID,Gianola Daniel S.¹^ORCID

Affiliation:

1. Materials Department, University of California, Santa Barbara, CA, USA.

2. California NanoSystems Institute, University of California, Santa Barbara, CA, USA.

3. Department of Mechanical Engineering, University of California, Santa Barbara, CA, USA.

4. Department of Chemical and Materials Engineering, University of Kentucky, KY, USA.

5. Materials Science and Technology Division, U. S. Naval Research Laboratory, Washington, DC, USA.

6. Air Force Research Laboratory, Wright-Patterson AFB, OH, USA.

Abstract

Pathways for ductility Alloys containing multiple elements can be very strong but often suffer from poor ductility. F. Wang et al. found that different mechanisms accommodated plasticity in a molybdenum-niobium-titanium multiprincipal element alloy (see the Perspective by Cairney). Instead of so-called “screw” dislocations, deformation is accommodated by multiple pathways that include “edge” dislocations and activation of crystallographic slip planes. These results offer a design paradigm for developing new high-strength alloys. Science , this issue p. 95 ; see also p. 37

Funder

National Science Foundation

Office of Naval Research

U.S. Air Force

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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