WC对感应钎涂金刚石涂层组织及性能的影响

吴奇隆; 董显; 张雷; 钟素娟; 陈治强; 贾连辉; 罗灵杰

doi:10.13394/j.cnki.jgszz.2022.0205

WC对感应钎涂金刚石涂层组织及性能的影响

doi: 10.13394/j.cnki.jgszz.2022.0205

吴奇隆^{1, 2,},
董显^3, ,,
张雷¹,
钟素娟³,
陈治强⁴,
贾连辉⁵,
罗灵杰¹

1.
中国机械总院集团宁波智能机床研究院有限公司, 浙江宁波315700
2.
吉林大学，机械与航空航天学院，长春 130012
3.
郑州机械研究所有限公司, 新型钎焊材料与技术国家重点实验室, 郑州 450001
4.
河南黄河旋风股份有限公司, 河南许昌 461500
5.
中铁工程装备集团有限公司, 郑州 450001

基金项目: 浙江省“尖兵”、“领雁”计划（2022C01187）。

详细信息

作者简介:
吴奇隆，男，1993年生，工程师。主要研究方向：金属材料成型。E-mail：zzuwql@163.com

通讯作者:
董显，男，1982年生，硕士、高级工程师。主要研究方向：新型焊接材料及焊接技术。E-mail： zdclyjy@163.com

中图分类号: TQ164; TG454
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- 文章访问数: 219
- HTML全文浏览量: 92
- PDF下载量: 29
- 被引次数: 0
出版历程
- 收稿日期: 2022-11-21
- 修回日期: 2023-03-03
- 录用日期: 2023-05-31
- 网络出版日期: 2023-12-07
- 刊出日期: 2023-10-20

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

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

摘要

摘要: 在镍基钎料中加入WC微粉，采用钎涂的方法在Q235钢上制备金刚石涂层，研究WC微粉对金刚石涂层组织及耐磨性的影响，并通过扫描电镜、能谱分析、显微硬度和磨损失重测试表征金刚石钎焊涂层的组织和耐磨性能。结果表明：在钎涂过程中，金刚石、WC微粉与镍基钎料合金发生冶金结合，WC颗粒在镍基基体中具有弥散强化与细晶强化作用，添加质量分数为10%WC的钎料合金的洛氏硬度与未添加WC时的比较提高了7.5%；且在相同的磨损实验条件下，未添加WC微粉的钎涂金刚石涂层质量损失为0.196 g，而添加WC微粉后的涂层质量损失为0.148 g，后者的耐磨性能提高了24.5%。
- WC /
- 金刚石 /
- 感应钎焊涂层 /
- 耐磨性
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

HTML全文

图 1 钎涂用镍基钎料粉末、金刚石和WC微粉形貌

Figure 1. Morphology of Ni base filler metal powder, diamond and WC micro powder for brazing coating

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图 2 未添加WC的钎涂层形貌及 EDS 面扫描结果

Figure 2. Morphology and EDS surface scanning results of brazing coating without WC addition

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图 3 添加10%WC的钎焊涂层形貌

Figure 3. Morphology of brazing coating with 10% WC added

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图 4 涂层中WC形貌及线扫描结果

Figure 4. WC morphology and line scanning results in the coating

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图 5 钎涂金刚石的 EDS 面扫描结果

Figure 5. Scanning results of EDS surface of brazed diamond

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图 6 涂层的显微组织形貌及线扫描结果

Figure 6. Microstructure morphologies and line scanning results of the coating

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图 7 涂层钎料合金基体硬度

Figure 7. Hardness of coated solder alloy matrix

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图 8 WC对金刚石涂层耐磨性的影响

Figure 8. Effect of WC on abrasion resistance of diamond coating

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图 9 感应钎涂涂层每5分钟的磨耗质量变化

Figure 9. Change in wear quality of induction brazing coating every 5 minutes

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表 1 镍基钎料化学成分

Table 1. Chemical compositions of Ni-based solder

元素	质量分数 ω / %
Cr	7.10
B	3.00
Si	4.40
Fe	3.10
C	0.02
Ni	余量

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