High dislocation density–induced large ductility in deformed and partitioned steels-Reference-Cited by-同舟云学术

High dislocation density–induced large ductility in deformed and partitioned steels

Published:2017-09-08 Issue:6355 Volume:357 Page:1029-1032
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

He B. B.¹^ORCID,Hu B.²^ORCID,Yen H. W.³^ORCID,Cheng G. J.³^ORCID,Wang Z. K.⁴,Luo H. W.²^ORCID,Huang M. X.¹^ORCID

Affiliation:

1. Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China.

2. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Xue Yuan Lu 30, Beijing 100083, China.

3. Department of Materials Science and Engineering, National Taiwan University, Roosevelt Road, Taipei 10617, Taiwan.

4. Department of Mechanical and Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Hong Kong, China.

Abstract

A ductile steel shows its strength Many industrial applications require materials to have high strength while remaining pliable, or ductile. However, the microstructure that increases strength tends to reduce ductility. He et al. used a processing mechanism to create a “forest” of line defects in manganese steel. This deformed and partitioned steel was produced by cold-rolling and low-temperature annealing and contained a dislocation network that improved both strength and ductility. Science , this issue p. 1029

Funder

Natural Science Foundation of China

Research Grants Council of Hong Kong

Ministry of Science and Technology of Republic of China

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference57 articles.

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3. Heterogeneous lamella structure unites ultrafine-grain strength with coarse-grain ductility