Multiplicity of dislocation pathways in a refractory multiprincipal element alloy
Abstract
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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Oct 02, 2020
- Source ID
- 10.1126/science.aba3722
Entities
People
- Daniel S Gianola
- Fulin Wang
- Glenn H Balbus
- Irene J Beyerlein
- Jean-charles Stinville
- Jungho Shin
- Keith E Knipling
- Leah H Mills
- Oleg N. Senkov
- Paul F Rottmann
- Shuozhi Xu
- Tresa M. Pollock
- Y Su
Organizations
- Air Force Research Laboratory
- National Science Foundation
- Office of Naval Research
- United States Air Force
- United States Naval Research Laboratory
- University of California, Santa Barbara
- University of Kentucky