Molecular dynamics simulation of nanoindentation on Cu/Ni nanotwinned multilayer films using a spherical indenter

Molecular dynamics simulation of nanoindentation on Cu/Ni nanotwinned multilayer films using a spherical indenter

We performed molecular dynamics simulation of nanoindentation on Cu/Ni nanotwinned multilayer films using a spherical indenter, aimed to investigate the effects of hetero-twin interface and twin thickness on hardness. We found that both twinning partial slip (TPS) and partial slip parallel with twin...

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Veröffentlicht in:Scientific reports 2016-10, Vol.6 (1), p.35665-35665, Article 35665
Hauptverfasser: Fu, Tao, Peng, Xianghe, Chen, Xiang, Weng, Shayuan, Hu, Ning, Li, Qibin, Wang, Zhongchang
Format: Artikel
Sprache:eng
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639/301/357/1018
639/766/36
Hardness
Humanities and Social Sciences
Interfaces
Investigations
Mechanical properties
Misfit dislocations
Molecular dynamics
multidisciplinary
Science
Simulation
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Zusammenfassung:We performed molecular dynamics simulation of nanoindentation on Cu/Ni nanotwinned multilayer films using a spherical indenter, aimed to investigate the effects of hetero-twin interface and twin thickness on hardness. We found that both twinning partial slip (TPS) and partial slip parallel with twin boundary (PSPTB) can reduce hardness and therefore should not be ignored when evaluating mechanical properties at nanoscale. There is a critical range of twin thickness λ (~25 Å 
ISSN:2045-2322
2045-2322
DOI:10.1038/srep35665