Large plasticity in magnesium mediated by pyramidal dislocations-Reference-Cited by-同舟云学术

Large plasticity in magnesium mediated by pyramidal dislocations

Published:2019-07-05 Issue:6448 Volume:365 Page:73-75
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Liu Bo-Yu¹^ORCID,Liu Fei¹^ORCID,Yang Nan¹^ORCID,Zhai Xiao-Bo²^ORCID,Zhang Lei³^ORCID,Yang Yang⁴^ORCID,Li Bin⁴^ORCID,Li Ju⁵^ORCID,Ma Evan⁶^ORCID,Nie Jian-Feng⁷⁸^ORCID,Shan Zhi-Wei¹^ORCID

Affiliation:

1. Center for Advancing Materials Performance from the Nanoscale (CAMP-Nano) and Hysitron Applied Research Center in China (HARCC), State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, People’s Republic of China.

2. College of Science, Xi’an University of Science and Technology, Xi’an 710054, People’s Republic of China.

3. MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Science, Xi’an Jiaotong University, Xi’an 710049, People’s Republic of China.

4. Department of Chemical and Materials Engineering, University of Nevada, Reno, NV 89557, USA.

5. Departments of Nuclear Science and Engineering and Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.

6. Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218, USA.

7. Department of Materials Science and Engineering, Monash University, Melbourne, Victoria, 3800, Australia.

8. International Joint Laboratory for Light Alloys (Ministry of Education), College of Materials Science and Engineering, Chongqing University, Chongqing 400044, People’s Republic of China.

Abstract

Smaller but more ductile Poor ductility is one limiting factor in widespread use of strong but lightweight magnesium alloys in cars, trains, and planes. The usual way to try to circumvent this poor ductility is by adding other elements, which can be costly. Liu et al. show that very small samples of pure magnesium are much more ductile than previously believed (see the Perspective by Proust). The small samples suppress the deformation twinning that causes fractures in larger samples. Avoiding this mechanism should allow development of high-ductility magnesium and other metal alloys. Science , this issue p. 73 ; see also p. 30

Funder

National Science Foundation

U.S. Department of Energy

Australian Research Council

National Natural Science Foundation of China

National Key Research and Development Program of China

Science and Technology Department of Shaanxi Province

China Postdoctoral Science Foundation

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary