Highly hard yet toughened bcc-W coating by doping unexpectedly low B content

Handle URI:
http://hdl.handle.net/10754/625409
Title:
Highly hard yet toughened bcc-W coating by doping unexpectedly low B content
Authors:
Yang, Lina; Zhang, Kan ( 0000-0003-1354-2784 ) ; Wen, Mao; Hou, Zhipeng; Gong, Chen; Liu, Xucheng; Hu, Chaoquan; Cui, Xiaoqiang; Zheng, Weitao
Abstract:
Either hardness or toughness has been the core interest in scientific exploration and technological pursuit for a long time. However, it is still a big challenge to enhance the hardness and toughness at the same time, since the improvement of one side is always at the expense of the other one. Here, we have succeeded in dealing with this pair of conflict based on tungsten (W) coating by doping boron (B) via magnetron co-sputtering. The results reveal that the introduction of low concentrations of B (6.3 at. %), in the doping regime, leads to the formation of W(B) supersaturated solid solution with refined grains. Meanwhile, the doping-induced higher compressive stress, higher H/E* and denser microstructure result in a surprising combination of improved hardness (2 × larger than pure W) and superior toughness (higher crack formation threshold compared to pure W). We believe this is an innovative sight to design new generation of transition-metal-based multifunctional coatings. Besides, our results are applicable for industrial application because it can be realized by simple manufacturing approaches, e.g. magnetron sputtering technology.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Yang L, Zhang K, Wen M, Hou Z, Gong C, et al. (2017) Highly hard yet toughened bcc-W coating by doping unexpectedly low B content. Scientific Reports 7. Available: http://dx.doi.org/10.1038/s41598-017-09807-9.
Publisher:
Springer Nature
Journal:
Scientific Reports
Issue Date:
18-Aug-2017
DOI:
10.1038/s41598-017-09807-9
Type:
Article
ISSN:
2045-2322
Sponsors:
The support from National Key Research and Development Program of China (2016YFA0200400), National Natural Science Foundation of China (Grant Nos 51602122,51672101,51572104), the China postdoctoral Science Foundation (Grant No. 2016M600229), Science and Technology Development program of Jilin province (Grant no. 20170520120JH), the 46th Research Institute of China Electronics Technology Group Corporation is highly appreciated.
Additional Links:
https://www.nature.com/articles/s41598-017-09807-9
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorYang, Linaen
dc.contributor.authorZhang, Kanen
dc.contributor.authorWen, Maoen
dc.contributor.authorHou, Zhipengen
dc.contributor.authorGong, Chenen
dc.contributor.authorLiu, Xuchengen
dc.contributor.authorHu, Chaoquanen
dc.contributor.authorCui, Xiaoqiangen
dc.contributor.authorZheng, Weitaoen
dc.date.accessioned2017-08-28T10:28:00Z-
dc.date.available2017-08-28T10:28:00Z-
dc.date.issued2017-08-18en
dc.identifier.citationYang L, Zhang K, Wen M, Hou Z, Gong C, et al. (2017) Highly hard yet toughened bcc-W coating by doping unexpectedly low B content. Scientific Reports 7. Available: http://dx.doi.org/10.1038/s41598-017-09807-9.en
dc.identifier.issn2045-2322en
dc.identifier.doi10.1038/s41598-017-09807-9en
dc.identifier.urihttp://hdl.handle.net/10754/625409-
dc.description.abstractEither hardness or toughness has been the core interest in scientific exploration and technological pursuit for a long time. However, it is still a big challenge to enhance the hardness and toughness at the same time, since the improvement of one side is always at the expense of the other one. Here, we have succeeded in dealing with this pair of conflict based on tungsten (W) coating by doping boron (B) via magnetron co-sputtering. The results reveal that the introduction of low concentrations of B (6.3 at. %), in the doping regime, leads to the formation of W(B) supersaturated solid solution with refined grains. Meanwhile, the doping-induced higher compressive stress, higher H/E* and denser microstructure result in a surprising combination of improved hardness (2 × larger than pure W) and superior toughness (higher crack formation threshold compared to pure W). We believe this is an innovative sight to design new generation of transition-metal-based multifunctional coatings. Besides, our results are applicable for industrial application because it can be realized by simple manufacturing approaches, e.g. magnetron sputtering technology.en
dc.description.sponsorshipThe support from National Key Research and Development Program of China (2016YFA0200400), National Natural Science Foundation of China (Grant Nos 51602122,51672101,51572104), the China postdoctoral Science Foundation (Grant No. 2016M600229), Science and Technology Development program of Jilin province (Grant no. 20170520120JH), the 46th Research Institute of China Electronics Technology Group Corporation is highly appreciated.en
dc.publisherSpringer Natureen
dc.relation.urlhttps://www.nature.com/articles/s41598-017-09807-9en
dc.rightsThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.titleHighly hard yet toughened bcc-W coating by doping unexpectedly low B contenten
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalScientific Reportsen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionState Key Laboratory of Superhard Materials, Department of Materials Science, Key Laboratory of Automobile Materials, MOE, and Jilin University, Changchun, 130012, People's Republic of China.en
kaust.authorHou, Zhipengen
kaust.authorGong, Chenen
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