Macro-gradient structures generated in Ti(C, N)-based cermets with supersaturated WC: an experimental and thermodynamic investigation

Zhenghui Zheng; Jian Lv; Ming Lou; Kai Xu; Leilei Chen; Jianbo Zhang; Yujie Du; Weibin Zhang; Keke Chang

doi:10.1080/21663831.2022.2131371

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Macro-gradient structures generated in Ti(C, N)-based cermets with supersaturated WC: an experimental and thermodynamic investigation

Original Reports | 更新时间：2026-08-19

- Macro-gradient structures generated in Ti(C, N)-based cermets with supersaturated WC: an experimental and thermodynamic investigation
- Materials Research Letters Vol. 11, Issue 2, Pages: 152-158(2023)
- 作者机构：
  
  1. a Faculty of Materials Metallurgy and Chemistry Jiangxi University of Science and Technology Ganzhou People’s Republic of China
  2. a Faculty of Materials Metallurgy and Chemistry Jiangxi University of Science and Technology
  3. d Key Laboratory for Liquid–Solid Structural Evolution and Processing of Materials (Ministry of Education) Shandong University
  4. b Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing People’s Republic of China
  5. c Key Laboratory of Marine Materials and Related Technologies Zhejiang Key Laboratory of Marine Materials and Protective Technologies Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2022.2131371
  CLC：
- Online First：10 October 2022，
  
  Published：2023
- 稿件说明：
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Zhenghui Zheng, Jian Lv, Ming Lou, et al. Macro-gradient structures generated in Ti(C, N)-based cermets with supersaturated WC: an experimental and thermodynamic investigation[J]. Materials Research Letters, 2023, 11(2): 152-158.
DOI：

Zhenghui Zheng, Jian Lv, Ming Lou, et al. Macro-gradient structures generated in Ti(C, N)-based cermets with supersaturated WC: an experimental and thermodynamic investigation[J]. Materials Research Letters, 2023, 11(2): 152-158. DOI： 10.1080/21663831.2022.2131371.

摘要

Abstract

WC is an indispensable constituent when producing Ti(C

N)-based cermets

yet its role on microstructure and the mechanism remain blurred. Herein

based on the CALPHAD approach

we designed and synthesized the cermets containing unsaturated and supersaturated WC. Formation of a macro-gradient structure was observed

encompassing an undissolved WC area

a WC dissolution area

and a (Ti

W)(C

N) solid-solution area. Such a unique structure has not been reported in cermet systems

which originates from the denitrification-induced W solubility change in Ti(C

as clarified computationally. Thus

this work shows the usefulness of thermodynamic calculations in establishing composition-microstructure relationships in cermets.

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