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Fabrication of WC/Fe/WC laminar film on tungsten based on in-situ ceramization.

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Title: Fabrication of WC/Fe/WC laminar film on tungsten based on in-situ ceramization.
Authors: Zhao, Ziyuan1 (AUTHOR) zhaoziyuan@xaut.edu.cn, Wang, Huitao1 (AUTHOR) huitaowang97@163.com, Yu, Yanbo1 (AUTHOR), Zhong, Lisheng1 (AUTHOR), Li, Junming1 (AUTHOR), Zhao, Jingzhong1 (AUTHOR), Tong, Lijia1,2 (AUTHOR) 2007tonglijia@163.com
Source: Ceramics International. Mar2026, Vol. 52 Issue 8, p10920-10927. 8p.
Subjects: Carburization, Tungsten, Metallic composites, Microhardness, Cohesion, Fracture toughness
Abstract: In this study, a novel method for fabricating a laminar WC/Fe/WC film on tungsten is proposed based on an in-situ ceramization mechanism. Instead of direct deposition, a W-Fe bilayer was first deposited on a W substrate and then converted into a WC/Fe/WC trilayer film via carburization, which transformed both the deposited W layer and the surface layer of substrate into WC. The WC layers contained a very high volume fraction of WC phase, and the intermediate Fe layer was composed of α-Fe. The interfaces between layers were serrated and metallurgically bonded, and the film-substrate interface was located inside the original W substrate. The film showed a microhardness of 1477 HV and a fracture toughness of 6.3 MPa m1/2. The α-Fe layer enhanced the ductility and toughness of the material by undergoing plastic deformation under external load and effectively arresting crack propagation during fracture. Scratch tests revealed strong adhesion, with the inner WC layer remaining protective under 90 N load. This approach offers a viable route for designing ceramic-metal multilayer films. [ABSTRACT FROM AUTHOR]
Copyright of Ceramics International is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 192197108
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Label: Title
  Group: Ti
  Data: Fabrication of WC/Fe/WC laminar film on tungsten based on in-situ ceramization.
– Name: Author
  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Zhao%2C+Ziyuan%22">Zhao, Ziyuan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> zhaoziyuan@xaut.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Huitao%22">Wang, Huitao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> huitaowang97@163.com</i><br /><searchLink fieldCode="AR" term="%22Yu%2C+Yanbo%22">Yu, Yanbo</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhong%2C+Lisheng%22">Zhong, Lisheng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Junming%22">Li, Junming</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhao%2C+Jingzhong%22">Zhao, Jingzhong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tong%2C+Lijia%22">Tong, Lijia</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> 2007tonglijia@163.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Ceramics+International%22">Ceramics International</searchLink>. Mar2026, Vol. 52 Issue 8, p10920-10927. 8p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Carburization%22">Carburization</searchLink><br /><searchLink fieldCode="DE" term="%22Tungsten%22">Tungsten</searchLink><br /><searchLink fieldCode="DE" term="%22Metallic+composites%22">Metallic composites</searchLink><br /><searchLink fieldCode="DE" term="%22Microhardness%22">Microhardness</searchLink><br /><searchLink fieldCode="DE" term="%22Cohesion%22">Cohesion</searchLink><br /><searchLink fieldCode="DE" term="%22Fracture+toughness%22">Fracture toughness</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In this study, a novel method for fabricating a laminar WC/Fe/WC film on tungsten is proposed based on an in-situ ceramization mechanism. Instead of direct deposition, a W-Fe bilayer was first deposited on a W substrate and then converted into a WC/Fe/WC trilayer film via carburization, which transformed both the deposited W layer and the surface layer of substrate into WC. The WC layers contained a very high volume fraction of WC phase, and the intermediate Fe layer was composed of α-Fe. The interfaces between layers were serrated and metallurgically bonded, and the film-substrate interface was located inside the original W substrate. The film showed a microhardness of 1477 HV and a fracture toughness of 6.3 MPa m1/2. The α-Fe layer enhanced the ductility and toughness of the material by undergoing plastic deformation under external load and effectively arresting crack propagation during fracture. Scratch tests revealed strong adhesion, with the inner WC layer remaining protective under 90 N load. This approach offers a viable route for designing ceramic-metal multilayer films. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Ceramics International is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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        Value: 10.1016/j.ceramint.2026.01.229
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      – Code: eng
        Text: English
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        PageCount: 8
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      – SubjectFull: Carburization
        Type: general
      – SubjectFull: Tungsten
        Type: general
      – SubjectFull: Metallic composites
        Type: general
      – SubjectFull: Microhardness
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      – SubjectFull: Cohesion
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      – SubjectFull: Fracture toughness
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    Titles:
      – TitleFull: Fabrication of WC/Fe/WC laminar film on tungsten based on in-situ ceramization.
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            NameFull: Zhao, Ziyuan
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            NameFull: Wang, Huitao
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            NameFull: Yu, Yanbo
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            NameFull: Zhong, Lisheng
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            NameFull: Li, Junming
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            NameFull: Zhao, Jingzhong
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              M: 03
              Text: Mar2026
              Type: published
              Y: 2026
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