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Understanding imprint formation, plastic instabilities and hardness evolutions in FCC, BCC and HCP metal surfaces

Author
Varillas, J.; Ocenásek, J.; Jordi Torner; Alcala, J.
Type of activity
Journal article
Journal
Acta materialia
Date of publication
2021-09
Volume
217
First page
117122:1
Last page
117122:14
DOI
10.1016/j.actamat.2021.117122
Repository
http://hdl.handle.net/2117/351450 Open in new window
URL
https://www.sciencedirect.com/science/article/pii/S1359645421005024 Open in new window
Abstract
Nanoindentation experiments in metal surfaces are characterized by the onset of plastic instabilities along with the development of permanent nanoimprints and dense defect networks. This investigation concerns massive molecular dynamics simulations of nanoindentation experiments in FCC, BCC and HCP metals using blunted (spherical) tips of realistic size, and the detailed comparison of the results with experimental measurements. Our findings shed light on the defect processes which dictate the co...
Citation
Varillas, J. [et al.]. Understanding imprint formation, plastic instabilities and hardness evolutions in FCC, BCC and HCP metal surfaces. "Acta materialia", Setembre 2021, vol. 217, p. 117122:1-117122:14.
Keywords
Crystal plasticity, Dislocations, Hardness, Nanoindentation, Twinning
Group of research
InSup - Surface Interaction in Bioengineering and Materials Science Research Group
LAM - Multimedia Applications and ICTs Laboratory

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