Effect of WC on microstructure and properties of induction brazing diamond coating

WU Qilong; DONG Xian; ZHANG Lei; ZHONG Sujuan; CHEN Zhiqiang; JIA Lianhui; LUO Lingjie

doi:10.13394/j.cnki.jgszz.2022.0205

Volume 43 Issue 5

Oct. 2023

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Article Navigation > Diamond & Abrasives Engineering > 2023 > 43(5): 579-585

WU Qilong, DONG Xian, ZHANG Lei, ZHONG Sujuan, CHEN Zhiqiang, JIA Lianhui, LUO Lingjie. Effect of WC on microstructure and properties of induction brazing diamond coating[J]. Diamond & Abrasives Engineering, 2023, 43(5): 579-585. doi: 10.13394/j.cnki.jgszz.2022.0205

Citation:

WU Qilong, DONG Xian, ZHANG Lei, ZHONG Sujuan, CHEN Zhiqiang, JIA Lianhui, LUO Lingjie. Effect of WC on microstructure and properties of induction brazing diamond coating[J]. Diamond & Abrasives Engineering, 2023, 43(5): 579-585. doi: 10.13394/j.cnki.jgszz.2022.0205

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Effect of WC on microstructure and properties of induction brazing diamond coating

doi: 10.13394/j.cnki.jgszz.2022.0205

1.
China Academy of Machinery Ningbo Academy of Intelligent Machine Tool, Ningbo 315700, Zhejiang, China
2.
College of Mechanical and Aerospace Engineering, Jilin University Changchun 130022, China
3.
State Key Laboratory of Advanced Brazing Filler Metals and Technology, Zhengzhou Research Institute of Mechanical Engineering Co., Ltd., Zhengzhou 450001, China
4.
Henan Huanghe Whirlwind Co., Ltd., Xuchang 461500, Henan, China
5.
China Railway Engineering Equipment Group Co., Ltd., Zhengzhou 450001, China

More Information

Received Date: 2022-11-21
Accepted Date: 2023-05-31
Rev Recd Date: 2023-03-03

Available Online: 2023-12-07

Abstract

Abstract

The diamond coating was prepared on Q235 steel by adding WC micro-powder to a nickel-based filler metal during induction brazing. The effects of WC powder on the microstructure and wear resistance of the diamond coating were studied. The microstructure and wear resistance of the diamond coating were characterized by scanning electron microscopy, energy spectrum, microhardness and wear loss tests. The results show that during the brazing process, diamond and WC micro-powder form metallurgical bonds with the nickel-based brazing alloy. The WC particles contribute to dispersion strengthening and fine-grain strengthening effects in the nickel-based matrix. The Rockwell hardness of the brazing alloy with a mass fraction of 10% WC increases by 7.5% compared to that without WC. Under identical wear experimental conditions, the mass loss of the diamond coating without added WC micro-powder was 0.196 g, while the mass loss of the coating with WC micro-powder added was 0.148 g. The wear resistance of the latter increased by 24.5%.
- WC,
- diamond,
- induction brazing coating,
- wear resistant

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References(18)

References

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