WC含量对WC-Ni60喷焊层微观组织和硬度的影响

doi:10.13251/j.issn.0254-6051.2024.04.044

金属热处理 ›› 2024, Vol. 49 ›› Issue (4): 278-283.DOI: 10.13251/j.issn.0254-6051.2024.04.044

WC含量对WC-Ni60喷焊层微观组织和硬度的影响

赵虎林¹, 苟藏红¹, 袁永峰², 曹静², 赵昕³

1.陇南师范高等专科学校, 甘肃陇南 742500;
2.甘肃宝徽集团锌冶炼厂, 甘肃陇南 742300;
3.甘肃省礼县石桥镇中心小学, 甘肃陇南 742211

收稿日期:2023-10-16 修回日期:2024-03-05 出版日期:2024-04-25 发布日期:2024-05-27
作者简介:赵虎林(1986—),男,讲师,硕士,主要研究方向为有色金属焊接、有色金属冶金等,E-mail:455125571@qq.com
基金资助:
甘肃省陇南市科技计划(2021-10)

Effect of WC content on microstructure and hardness of WC-Ni60 spray welding coating

Zhao Hulin¹, Gou Zanghong¹, Yuan Yongfeng², Cao Jing², Zhao Xin³

1. Longnan Teachers College, Longnan Gansu 742500, China;
2. Gansu Baohui Zinc Products Co., Ltd., Longnan Gansu 742300, China;
3. Gansu Lixian Shiqiao Town Central Primary School, Longnan Gansu 742211, China

Received:2023-10-16 Revised:2024-03-05 Online:2024-04-25 Published:2024-05-27

摘要/Abstract

摘要： 使用氧乙炔火焰喷焊工艺在A3钢板上制备了不同WC含量(10%、20%、30%、40%、50%)的WC-Ni60合金粉末喷焊层,通过对比分析,研究了不同WC含量对喷焊层的微观组织和硬度的影响。结果表明:喷焊后的WC-Ni60合金层与A3钢板基体结合处形成“白亮带”共晶组织,冶金结合良好;随着WC含量的增加,喷焊层的微观组织中WC颗粒逐渐增多,显微硬度也越大,喷焊层的显微硬度可达基体材料的2倍以上。但是在WC含量超过30%以后,微观组织中容易出现气孔等缺陷。

关键词: WC-Ni60合金粉末, WC含量, 火焰喷焊层, 微观组织, 力学性能

Abstract: WC-Ni60 spray welding coatings with different WC contents (10%, 20%, 30%, 40% and 50%) were prepared on A3 steel plate by oxyacetylene flame spray welding process. Through comparative analysis, the effect of WC content on the microstructure and hardness of the spray welding layer was studied. The results show that after spray welding, a “white bright band” eutectic structure forms at the junction of the WC-Ni60 alloy coating with the A3 steel plate matrix, and the metallurgical bonding is good. With the increase of WC content, WC particles in the microstructure of the spray welding coating gradually increase, the microhardness is also higher and reaches more than 2 times of that of the base material. However, when the WC content exceeds 30%, pores and other defects are easy to appear in the microstructure.

Key words: WC-Ni60 alloy powder, WC content, flame spray welding coating, microstructure, mechanical properties

中图分类号:

TG166.7

赵虎林, 苟藏红, 袁永峰, 曹静, 赵昕. WC含量对WC-Ni60喷焊层微观组织和硬度的影响[J]. 金属热处理, 2024, 49(4): 278-283.

Zhao Hulin, Gou Zanghong, Yuan Yongfeng, Cao Jing, Zhao Xin. Effect of WC content on microstructure and hardness of WC-Ni60 spray welding coating[J]. Heat Treatment of Metals, 2024, 49(4): 278-283.

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WC含量对WC-Ni60喷焊层微观组织和硬度的影响

Effect of WC content on microstructure and hardness of WC-Ni60 spray welding coating

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