Journal
PHILOSOPHICAL MAGAZINE LETTERS
Volume 97, Issue 6, Pages 241-248Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/09500839.2017.1322724
Keywords
Metal matrix composites; mechanical properties; plastic deformation; digital image correlation (DIC); strain evolution
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Funding
- National Natural Science Foundation of China [51571070, 51571071]
- Key Laboratory of Micro-systems and Microstructures Manufacturing of Ministry of Education, Harbin Institute of Technology [2015KM002]
- Science Foundation from the University of Jinan [511-1009406]
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The aim of the present study is to reveal the most critical underlying factor influencing the mechanical properties of metal matrix composites (MMCs). It is shown that the mechanical properties of MMCs are essentially governed by the degree of strain localisation during plastic deformation. In other words, the MMCs exhibit superior mechanical performance only if the strain localisation is obviously inhibited and the accumulated stresses can be effectively transferred out. The work provides a new perspective in guiding the design of next-generation high-performance MMCs by suppressing the strain localisation as far as possible.
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