Effect of WC/Co coherency phase boundaries on Fracture toughness of the nanocrystalline cemented carbides

The effect of coherency WC/Co phase boundaries on the fracture toughness of the nanocrystalline WC-Co cemented carbides is studied by MD simulation method. The simulation results show that the nanocrystalline WC-Co cemented carbides with coherency WC/Co phase boundaries has higher fracture toughness...

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Autores principales: Xie, Hongxian, Song, Xiaoyan, Yin, Fuxing, Zhang, Yongguang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4971569/
https://www.ncbi.nlm.nih.gov/pubmed/27485922
http://dx.doi.org/10.1038/srep31047
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author Xie, Hongxian
Song, Xiaoyan
Yin, Fuxing
Zhang, Yongguang
author_facet Xie, Hongxian
Song, Xiaoyan
Yin, Fuxing
Zhang, Yongguang
author_sort Xie, Hongxian
collection PubMed
description The effect of coherency WC/Co phase boundaries on the fracture toughness of the nanocrystalline WC-Co cemented carbides is studied by MD simulation method. The simulation results show that the nanocrystalline WC-Co cemented carbides with coherency WC/Co phase boundaries has higher fracture toughness than that without coherency WC/Co phase boundaries. Moreover, the mechanism of why coherency WC/Co phase boundaries can improve the fracture toughness of the nanocrystalline cemented carbides is also investigated. It is found the fact that the separation energy of the coherent WC/Co phase boundary is larger than that of the incoherent WC/Co phase boundaries is the main reason for this excellent mechanical property.
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spelling pubmed-49715692016-08-11 Effect of WC/Co coherency phase boundaries on Fracture toughness of the nanocrystalline cemented carbides Xie, Hongxian Song, Xiaoyan Yin, Fuxing Zhang, Yongguang Sci Rep Article The effect of coherency WC/Co phase boundaries on the fracture toughness of the nanocrystalline WC-Co cemented carbides is studied by MD simulation method. The simulation results show that the nanocrystalline WC-Co cemented carbides with coherency WC/Co phase boundaries has higher fracture toughness than that without coherency WC/Co phase boundaries. Moreover, the mechanism of why coherency WC/Co phase boundaries can improve the fracture toughness of the nanocrystalline cemented carbides is also investigated. It is found the fact that the separation energy of the coherent WC/Co phase boundary is larger than that of the incoherent WC/Co phase boundaries is the main reason for this excellent mechanical property. Nature Publishing Group 2016-08-03 /pmc/articles/PMC4971569/ /pubmed/27485922 http://dx.doi.org/10.1038/srep31047 Text en Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Xie, Hongxian
Song, Xiaoyan
Yin, Fuxing
Zhang, Yongguang
Effect of WC/Co coherency phase boundaries on Fracture toughness of the nanocrystalline cemented carbides
title Effect of WC/Co coherency phase boundaries on Fracture toughness of the nanocrystalline cemented carbides
title_full Effect of WC/Co coherency phase boundaries on Fracture toughness of the nanocrystalline cemented carbides
title_fullStr Effect of WC/Co coherency phase boundaries on Fracture toughness of the nanocrystalline cemented carbides
title_full_unstemmed Effect of WC/Co coherency phase boundaries on Fracture toughness of the nanocrystalline cemented carbides
title_short Effect of WC/Co coherency phase boundaries on Fracture toughness of the nanocrystalline cemented carbides
title_sort effect of wc/co coherency phase boundaries on fracture toughness of the nanocrystalline cemented carbides
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4971569/
https://www.ncbi.nlm.nih.gov/pubmed/27485922
http://dx.doi.org/10.1038/srep31047
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AT yinfuxing effectofwccocoherencyphaseboundariesonfracturetoughnessofthenanocrystallinecementedcarbides
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