Strengthening effects of twin interface in Cu/Ni multilayer thin films – A molecular dynamics study
Weng, Shayuan, Ning, Huiming, Hu, Ning, Yan, Cheng, Fu, Tao, Peng, Xianghe, Fu, Shaoyun, Zhang, Jianyu, Xu, Chaohe, Sun, Dongyang, Liu, Yaolu, & Wu, Liangke (2016) Strengthening effects of twin interface in Cu/Ni multilayer thin films – A molecular dynamics study. Materials and Design, 111, pp. 1-8.
Molecular dynamics (MD) simulations of Cu/Ni multilayers with coherent, semi-coherent and coherent twin interfaces under tension at temperatures of 10 K, 100 K and 300 K are carried out to study the effects of the interfaces on the overallmechanical behavior. The microstructure and evolution of defects are investigated in detail to understand the strengthening mechanisms. It is found that all kinds of interfaces can act as potent impediments to the motion of dislocations. However, only the coherent twin interface shows significant strengthening effects via plastic deformation. The reason is attributed to the fact that the twin interface can absorb inclined dislocations and decrease its density, and therefore strengthen the layered structures.
Impact and interest:
Citation counts are sourced monthly from and citation databases.
These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.
Citations counts from theindexing service can be viewed at the linked Google Scholar™ search.
|Item Type:||Journal Article|
|Keywords:||thin films, mechanical property, numerical simulation|
|Subjects:||Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MATERIALS ENGINEERING (091200) > Metals and Alloy Materials (091207)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MECHANICAL ENGINEERING (091300) > Numerical Modelling and Mechanical Characterisation (091307)
Australian and New Zealand Standard Research Classification > TECHNOLOGY (100000) > NANOTECHNOLOGY (100700) > Nanoscale Characterisation (100712)
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2016 Elsevier Ltd.|
|Deposited On:||07 Sep 2016 22:32|
|Last Modified:||08 Sep 2016 22:37|
Repository Staff Only: item control page