渗硼剂对交流辅助低温渗硼致密Fe2B层制备的影响

doi:10.13251/j.issn.0254-6051.2026.02.043

金属热处理 ›› 2026, Vol. 51 ›› Issue (2): 292-296.DOI: 10.13251/j.issn.0254-6051.2026.02.043

渗硼剂对交流辅助低温渗硼致密Fe₂B层制备的影响

丁红珍¹, 李航², 邱万奇²

1.顺德职业技术大学智能制造学院, 广东顺德 528300;
2.华南理工大学材料科学与工程学院, 广东广州 510640

收稿日期:2025-09-15 修回日期:2025-12-27 发布日期:2026-03-05
作者简介:丁红珍(1981—),女,副教授,硕士,主要研究方向为材料表面强化,E-mail:28605792@qq.com
基金资助:
国家自然科学基金(51971095)

Effect of boronizing agent on preparation of dense Fe₂B layer by alternating current field assisted pack boriding at low-temperature

Ding Hongzhen¹, Li Hang², Qiu Wanqi²

1. School of Intelligent Manufacturing, Shunde Polytechnic University, Shunde Guangdong 528300, China;
2. School of Materials Science and Engineering, South China University of Technology, Guangzhou Guangdong 510640, China

Received:2025-09-15 Revised:2025-12-27 Published:2026-03-05

摘要/Abstract

摘要： 采用交流电场铺助固体粉末法对40CrNiMo钢进行低温渗硼,以不同配比的碳化硼(B₄C)和氟硼酸钾(KBF₄)作为渗硼剂,Al₂O₃为填充剂,并添加少量的镍粉。利用金相显微镜和扫描电镜观察渗层的微观组织及形貌,并用X射线衍射仪(XRD)分析渗层的物相。结果表明,渗硼剂中添加镍粉,能够降低渗硼初期的硼势,但影响渗硼层中FeB相形成的主要原因仍为供硼剂中B₄C含量。以4%B₄C、6%KBF₄、2%镍及Al₂O₃的渗硼剂配比,采用680 ℃电场辅助渗硼,在40CrNiMo钢表面获得了致密的Fe₂B单相渗硼层。

关键词: 粉末渗硼, 电场辅助, 低温渗硼, Fe₂B, 40CrNiMo钢

Abstract: 40CrNiMo steel was boronized at low-temperatures by using alternating current (AC) field assisted pack boriding. Boron carbide (B₄C) and potassium fluoroborate (KBF₄) were used as boronizing agents in varying amounts, Al₂O₃ was used as filler, and a small amount of nickel powder was added. Metallographic microscope, scanning electron microscope and X-ray diffractometer were used to investigate the microstructure, morphology, and to assess phases of the boronized layer. The findings indicate that adding nickel power to the boronizing agent can lower the boron potential during the first stages of boronization, while the B₄C content of the boron source is still the primary factor influencing the formation of FeB phase in the boronized layer. A dense Fe₂B single-phase boronized layer can be formed on the 40CrNiMo steel when using an electric field assisted boriding process at 680 ℃ with a ration of 4%B₄C, 6%KBF₄, 2% nickel, and additional Al₂O₃ boronizing agents.

Key words: powder boriding, electric field assisting, low-temperature boriding, Fe₂B, 40CrNiMo steel

中图分类号:

TG156.8

丁红珍, 李航, 邱万奇. 渗硼剂对交流辅助低温渗硼致密Fe₂B层制备的影响[J]. 金属热处理, 2026, 51(2): 292-296.

Ding Hongzhen, Li Hang, Qiu Wanqi. Effect of boronizing agent on preparation of dense Fe₂B layer by alternating current field assisted pack boriding at low-temperature[J]. Heat Treatment of Metals, 2026, 51(2): 292-296.

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渗硼剂对交流辅助低温渗硼致密Fe₂B层制备的影响

Effect of boronizing agent on preparation of dense Fe₂B layer by alternating current field assisted pack boriding at low-temperature

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