粉末电爆喷涂方法制备Ti3SiC2涂层

doi:10.13251/j.issn.0254-6051.2021.01.026

金属热处理 ›› 2021, Vol. 46 ›› Issue (1): 138-142.DOI: 10.13251/j.issn.0254-6051.2021.01.026

粉末电爆喷涂方法制备Ti₃SiC₂涂层

刘宗瀚^1,2, 朱亮^1,2, 林巧力^1,2, 张爱华³, 李楚³

1.兰州理工大学省部共建有色金属先进加工与再利用国家重点实验室,甘肃兰州 730050;
2.兰州理工大学材料科学与工程学院,甘肃兰州 730050;
3.兰州理工大学电气工程与信息工程学院,甘肃兰州 730050

收稿日期:2020-06-28 出版日期:2021-01-25 发布日期:2021-01-26
通讯作者: 朱亮,教授,博士,E-mail:Zhul@lut.cn
作者简介:刘宗瀚(1993—),硕士,主要研究方向为电爆喷涂工艺,E-mail:1198813361@qq.com。

Preparation of Ti₃SiC₂ coating by electrical explosion powder spraying method

Liu Zonghan^1,2, Zhu Liang^1,2, Lin Qiaoli^1,2, Zhang Aihua³, Li Chu³

1. State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal,Lanzhou University of Technology,Lanzhou Gansu 730050,China;
2. College of Materials Science and Engineering,Lanzhou University of Technology,Lanzhou Gansu 730050,China;
3. College of Electrical and Information Engineering,Lanzhou University of Technology,Lanzhou Gansu 730050,China

Received:2020-06-28 Online:2021-01-25 Published:2021-01-26

摘要/Abstract

摘要： 在自制的连续送粉电爆喷涂设备上,以Ti₃SiC₂粉末为电爆喷涂材料制备了Ti₃SiC₂涂层。根据所制备涂层的表面形貌和截面特征,分析了充电电压、粉末粒径、石墨掺入量对电爆喷涂过程的影响。结果表明,粉末粒径为28 μm,充电电压高于15 kV、掺入的石墨粉为10%时,涂层沉积率较高,均匀性较好。XRD分析表明,涂层由TiC与Ti₃SiC₂组成。采用胶结对偶试样拉伸试验法测定的涂层结合强度大于37 MPa。分析认为,掺和石墨粉可提高电爆时粉末的导电性,减少粉末粒子外边缘的沿面放电,使粉末获得更加充分的加热,有利于涂层的形成。

关键词: 电爆喷涂, Ti₃SiC₂涂层, 涂层形貌

Abstract: Ti₃SiC₂ coating was prepared with Ti₃SiC₂ powder as electrical spraying material by using self-made continuous powder-feeding electrical explosion spraying equipment.According to the surface morphologies and cross-sectional characteristics of the prepared coating,the effects of charging voltage,powder particle size,and graphite blending amount on the electrical explosion spraying process were analyzed.The results show that when the particle size of the powder is 28 μm,the charging voltage is higher than 15 kV,and the appropriate amount of graphite powder is 10%,the coating deposition rate is higher and the uniformity is better.The XRD analysis results show that the coating is composed of TiC and Ti₃SiC₂.The bonding strength of the coating determined by using the cemented dual sample tensile test method is greater than 37 MPa.Therefore,graphite powder blending can improve the conductivity of the powder during electrical explosion,reduce the surface discharge of the outer edge of the powder particles,make the powder to be heated more thoroughly,and help the coating formation.

Key words: electrical explosion spraying, Ti₃SiC₂ coating, coating morphology

中图分类号:

TG174.44

刘宗瀚, 朱亮, 林巧力, 张爱华, 李楚. 粉末电爆喷涂方法制备Ti₃SiC₂涂层[J]. 金属热处理, 2021, 46(1): 138-142.

Liu Zonghan, Zhu Liang, Lin Qiaoli, Zhang Aihua, Li Chu. Preparation of Ti₃SiC₂ coating by electrical explosion powder spraying method[J]. Heat Treatment of Metals, 2021, 46(1): 138-142.

参考文献

[1] 魏世丞,徐滨士,王海斗,等.电热爆炸喷涂的发展及其关键技术分析[J].中国表面工程,2008,21(4):8-13.
Wei Shicheng,Xu Binshi,Wang Haidou,et al.The development and key technology analysis of electro-thermal explosion spray[J].China Surface Engineering,2008,21(4):8-13.
[2] 朱亮,张鹏飞,乔河涛,等.管内约束碳化钨粉末电爆喷涂涂层的特性[J].高电压技术,2012,38(5):1039-1044.
Zhu Liang,Zhang Pengfei,Qiao Hetao,et al.Coating character of electrical explosion spraying of wolfram carbide powder in the constraining tube[J].High Voltage Engineering,2012,38(5):1039-1044.
[3] Han Feng,Zhu Liang,Liu Zonghan.The study of refractory Ta10W and non-refractory Ni60A coatings deposited by wire electrical explosion spraying[J].Surface and Coatings Technology,2019,374:44-51.
[4] 朱亮,石茂虎,王永.管约束WC粉末电爆喷涂涂层的形成[J].稀有金属材料与工程,2014,43(4):204-208.
Zhu Liang,Shi Maohu,Wang Yong.Coating forming by electrical explosion spraying of WC powder in the constraining tube[J].Rare Metal Materials and Engineering,2014,43(4):204-208.
[5] 马丽,朱亮,韩峰,等.管内壁的粉末电爆喷涂工艺[J].金属热处理,2019,44(3):170-174.
Ma Li,Zhu Liang,Han Feng,et al.Powder electrical explosion spraying for tube inner wall[J].Heat Treatment of Metals,2019,44(3):170-174.
[6] 蒲泽林,刘宗德,杨昆,等.电热爆炸定向喷涂NiCr/WC-Co复合涂层的特性[J].硅酸盐学报,2005,33(1):44-48.
Pu Zelin,Liu Zongde,Yang Kun,et al.Characteristic of NiCr/WC-Co composite coating sprayed directionally by electrothermal explosion[J].Journal of The Chinese Ceramic Society,2005,33(1):44-48.
[7] 毕学松,朱亮.丝段式电热爆过程中的气隙击穿特性[J].高电压技术,2010,36(5):1264-1268.
Bi Xuesong,Zhu Liang.Gas discharge of segmented metal wire electrical explosion[J].High Voltage Engineering,2010,36(5):1264-1268.
[8] Kikkawa F,Tamura H,Kondo K I.Ti-B-C composite coating produced by electrothermally exploded powder-spray technique[J].Journal of Thermal Spray Technology,2006,15(1):92-96.
[9] 杨钢宜,李国栋,熊翔,等.温度对CVD制备Ti-Si-C涂层中Ti₃SiC₂形成规律的影响[J].粉末冶金材料科学与工程,2014,19(5):797-804.
Yang Gangyi,Li Guodong,Xiong Xiang,et al.Effect of temperature on the formation law of Ti₃SiC₂ in CVD prepared Ti-Si-C codeposited coating[J].Materials Science and Engineering of Powder Metallurgy,2014,19(5):797-804.

粉末电爆喷涂方法制备Ti₃SiC₂涂层

Preparation of Ti₃SiC₂ coating by electrical explosion powder spraying method

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 1

编辑推荐

Metrics

本文评价